13,525 results match your criteria Anterior Cruciate Ligament Injury


Anterior Cruciate Ligament Injury Risk in Sport: A Systematic Review and Meta-Analysis of Injury Incidence by Sex and Sport Classification.

J Athl Train 2019 Apr 22. Epub 2019 Apr 22.

Department of Athletic Training, Florida International University, Miami.

Objective: To evaluate sex differences in incidence rates (IRs) of anterior cruciate ligament (ACL) injury by sport type (collision, contact, limited contact, and noncontact).

Data Sources: A systematic review was performed using the electronic databases PubMed (1969-January 20, 2017) and EBSCOhost (CINAHL, SPORTDiscus; 1969-January 20, 2017) and the search terms AND AND ( OR OR ).

Study Selection: Studies were included if they provided the number of ACL injuries and the number of athlete-exposures (AEs) by sex or enough information to allow the number of ACL injuries by sex to be calculated. Read More

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http://dx.doi.org/10.4085/1062-6050-407-16DOI Listing

Deficits in Quadriceps Force Control After Anterior Cruciate Ligament Injury: Potential Central Mechanisms.

J Athl Train 2019 Apr 22. Epub 2019 Apr 22.

Centre for Health, Exercise and Sports Medicine, University of Melbourne, Victoria, Australia.

Context: Poor quadriceps force control has been observed after anterior cruciate ligament (ACL) reconstruction but has not been examined after ACL injury. Whether adaptations within the central nervous system are contributing to these impairments is unknown.

Objective: To examine quadriceps force control in individuals who had sustained a recent ACL injury and determine the associations between cortical excitability and quadriceps force control in these individuals. Read More

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http://dx.doi.org/10.4085/1062-6050-414-17DOI Listing
April 2019
1 Read

Factors affecting knee abduction during weight-bearing activities in individuals with anterior cruciate ligament reconstruction.

Phys Ther Sport 2019 Apr 12;38:8-15. Epub 2019 Apr 12.

School of Exercise Science, Australian Catholic University, Brisbane, Australia.

Objective: To investigate if muscle strength and muscle activation patterns are associated with increased knee abduction during two functional tasks, commonly used in rehabilitation for individuals with anterior cruciate ligament reconstruction (ACLR).

Design: Cross-sectional study.

Setting: Laboratory. Read More

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http://dx.doi.org/10.1016/j.ptsp.2019.04.006DOI Listing
April 2019
1 Read

Optimising the Late-Stage Rehabilitation and Return-to-Sport Training and Testing Process After ACL Reconstruction.

Sports Med 2019 Apr 19. Epub 2019 Apr 19.

Isokinetic Medical Group, FIFA Medical Centre of Excellence, Education and Research Department, Bologna, Italy.

Despite increased knowledge on anterior cruciate ligament (ACL) injury mechanisms, improved surgical techniques, improved understanding of ACL biomechanics and enhanced knowledge in rehabilitation practice, return-to-sport (RTS) rates and subsequent second ACL re-injury rates after ACL reconstruction are not optimal. This narrative review discusses factors that may be highly relevant for RTS training and testing after ACL reconstruction, but which have received limited research attention to date or do not form part of the standard approach to rehabilitation. These factors include (1) explosive neuromuscular performance; (2) movement quality deficits associated with re-injury risk, particularly the need to re-train optimal sport-specific movement patterns; (3) the influence of fatigue; and (4) a lack of sport-specific re-training prior to RTS, with particular attention to an insufficient development of chronic training load. Read More

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http://link.springer.com/10.1007/s40279-019-01102-z
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http://dx.doi.org/10.1007/s40279-019-01102-zDOI Listing
April 2019
4 Reads

Relative Telomere Length in Blood Leukocytes of Patients with Anterior Cruciate Ligament Injury: A Pilot Study.

Malays Orthop J 2019 Mar;13(1):8-13

Department of Orthopaedics, Chulalongkorn University, Bangkok, Thailand.

Anterior cruciate ligament (ACL) tear is the most common knee ligament injury, especially in athletes. The objective of this study was to investigate relative telomere length (RTL) in blood leukocytes of patients with ACL injury compared with that of controls. A total of 187 subjects were invited to participate in this study. Read More

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http://dx.doi.org/10.5704/MOJ.1903.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6459039PMC
March 2019
1 Read

Age of 40 Years or Older Does Not Affect Meniscal Repair Failure Risk at 5 Years.

Arthroscopy 2019 Apr 15. Epub 2019 Apr 15.

Department of Orthopaedics, Wexner Medical Center, The Ohio State University, Columbus, Ohio, U.S.A.; OSU Sports Medicine, The Ohio State University, Columbus, Ohio, U.S.A.. Electronic address:

Purpose: To compare meniscal repair failure rates in patients aged 40 years or older versus patients younger than 40 years.

Methods: A total of 276 patients underwent meniscal repair surgery by a single sports medicine fellowship-trained surgeon between 2006 and 2012 and were eligible for study inclusion. Patients were followed up for meniscal repair failure, defined as meniscectomy, repeated meniscal repair, or total knee arthroplasty. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S07498063183114
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http://dx.doi.org/10.1016/j.arthro.2018.11.061DOI Listing
April 2019
1 Read

Identification of Normal and Injured Anterolateral Ligaments of the Knee: A Systematic Review of Magnetic Resonance Imaging Studies.

Arthroscopy 2019 Apr 15. Epub 2019 Apr 15.

Clínica do Dragão, Espregueira-Mendes Sports Centre-FIFA Medical Centre of Excellence, Porto, Portugal; Dom Henrique Research Centre, Porto, Portugal; Orthopaedics Department of Minho University, Minho, Portugal; 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga, Portugal. Electronic address:

Purpose: To identify the normal and injured magnetic resonance imaging appearance of the anterolateral ligament (ALL).

Methods: A systematic review was performed using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. The PubMed and Cochrane Library electronic databases were used to search for studies that reported the imaging outcomes of the appearance of the ALL. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S07498063183100
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http://dx.doi.org/10.1016/j.arthro.2018.10.120DOI Listing
April 2019
1 Read

EFFICACY OF PERTURBATION-ENHANCED NEUROMUSCULAR TRAINING ON HAMSTRING AND QUADRICEPS ONSET TIME, ACTIVATION AND KNEE FLEXION DURING A TUCK-JUMP TASK.

Int J Sports Phys Ther 2019 Apr;14(2):214-227

Department of Physical Education and Sports Sciences, Karaj Branch, Islamic Azad University, Karaj, Iran.

Background: Deficits in dynamic neuromuscular control of the knee may contribute to the higher incidence of the anterior cruciate ligament (ACL), specifically in female athletes. Little is known about the effects of preventive training programs on muscle onset time and activation during functional tasks.

Purpose: The purpose of this study was to evaluate the efficacy of perturbation-enhanced neuromuscular training on hamstring and quadriceps onset time and activation, and knee flexion angle in female athletes with quadriceps dominance (QD) deficit during a tuck-jump (TJ) task. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449013PMC
April 2019
1 Read

THE MODIFIED STAR EXCURSION BALANCE AND Y-BALANCE TEST RESULTS DIFFER WHEN ASSESSING PHYSICALLY ACTIVE HEALTHY ADOLESCENT FEMALES.

Int J Sports Phys Ther 2019 Apr;14(2):192-203

Background: The modified Star Excursion Balance Test (mSEBT) and Y-Balance Test (YBT) are two common methods for clinical assessment of dynamic balance. Clinicians often use only one of these test methods and one outcome factor when screening for lower extremity injury risk. Dynamic balance scores are known to vary by age, sex and sport. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449011PMC
April 2019
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DEFINING LOWER EXTREMITY DOMINANCE: THE RELATIONSHIP BETWEEN PREFERRED LOWER EXTREMITY AND TWO FUNCTIONAL TASKS.

Int J Sports Phys Ther 2019 Apr;14(2):188-191

Pivot Physical Therapy in Mechanicsburg, PA, USA.

Background: A commonly utilized operational definition of lower extremity (LE) dominance assumes the LE with which a participant prefers to kick a ball with is the same preferred LE a participant would choose for a unilateral landing task.

Hypothesis/purpose: The purpose of this study was to determine the relationship between the preferred lower extremity (LE) when performing a unilateral landing and kicking task. The authors hypothesized a strong correlation between the LE the participant chose for the landing task and the LE the participant chose for the kicking task would be evident. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6449010PMC
April 2019
1 Read

Outcomes of Revision Anterior Cruciate Ligament Surgery in Adolescents.

Am J Sports Med 2019 Apr 17:363546519837173. Epub 2019 Apr 17.

Department of Orthopedic Surgery, University of California, San Diego, California, USA.

Background: Although primary anterior cruciate ligament (ACL) reconstructions have been well studied in children and adolescents, the literature lacks information about revision ACL reconstructions in this population.

Purpose: This study aims to analyze the outcomes of revision ACL surgeries in the pediatric population.

Study Design: Case series; Level of evidence, 4. Read More

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http://dx.doi.org/10.1177/0363546519837173DOI Listing
April 2019
3 Reads

Partial Transphyseal Anterior Cruciate Ligament Reconstruction: Clinical, Functional, and Radiographic Outcomes.

Am J Sports Med 2019 Apr 17:363546519836423. Epub 2019 Apr 17.

Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California, USA.

Background: With a steadily increasing rate of anterior cruciate ligament (ACL) injury and reconstruction in the pediatric population, disagreement remains regarding the optimal reconstruction technique for patients with ACL injury and ≥2 years of growth remaining.

Purpose: This study aims to quantify the incidence of linear and angular growth disturbance of adolescents undergoing partial transphyseal ACL reconstruction (ACLR) while assessing graft failure rates, reoperation rates, and functional outcomes in the population.

Study Design: Case series; Level of evidence, 4. Read More

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http://dx.doi.org/10.1177/0363546519836423DOI Listing
April 2019
3 Reads

Incidence of Knee Injuries on Artificial Turf Versus Natural Grass in National Collegiate Athletic Association American Football: 2004-2005 Through 2013-2014 Seasons.

Am J Sports Med 2019 Apr 17:363546519833925. Epub 2019 Apr 17.

School of Medicine, Georgetown University, Washington, DC, USA.

Background: The use of artificial turf in American football continues to grow in popularity, and the effect of these playing surfaces on athletic injuries remains controversial. Knee injuries account for a significant portion of injuries in the National Collegiate Athletic Association (NCAA) football league; however, the effect of artificial surfaces on knee injuries remains ill-defined.

Hypothesis: There is no difference in the rate or mechanism of knee ligament and meniscal injuries during NCAA football events on natural grass and artificial turf playing surfaces. Read More

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http://dx.doi.org/10.1177/0363546519833925DOI Listing
April 2019
3 Reads

Anterior Cruciate Ligament Tear Promotes Skeletal Muscle Myostatin Expression, Fibrogenic Cell Expansion, and a Decline in Muscle Quality.

Am J Sports Med 2019 Apr 17:363546519832864. Epub 2019 Apr 17.

Department of Nutrition and Metabolism, University of Texas Medical Branch, Galveston, Texas, USA.

Background: Anterior cruciate ligament (ACL) tears result in significant quadriceps muscle atrophy that is resistant to recovery despite extensive rehabilitation. Recent work suggests an elevated fibrotic burden in the quadriceps muscle after the injury, which may limit recovery. Elucidating the mechanisms and cell types involved in the progression of fibrosis is critical for developing new treatment strategies. Read More

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http://dx.doi.org/10.1177/0363546519832864DOI Listing
April 2019
1 Read

Knee sliced open by skate blade: complete patellar tendon rupture in an elite long track speed skater.

BMJ Case Rep 2019 Apr 14;12(4). Epub 2019 Apr 14.

Orthopaedic Department, Baerum Hospital, Vestre Viken Hospital Trust, Akershus, Norway.

A long track speed skater sustained a deep horizontal cut to the right knee just distally to the patella, after he got hit by the skate blade of the pair mate. The injury included a complete patellar tendon rupture from the apex of the patella, a 1 mm deep transverse cut in the femoral condyle and a partial rupture of the anterior cruciate ligament. The tendon rupture was repaired with transosseous suture repair without augmentation. Read More

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http://dx.doi.org/10.1136/bcr-2018-228611DOI Listing
April 2019
1 Read

The effect of limb dominance on change of direction biomechanics: A systematic review of its importance for injury risk.

Phys Ther Sport 2019 Apr 9;37:179-189. Epub 2019 Apr 9.

Human Performance Laboratory, Directorate of Sport, Exercise, and Physiotherapy, University of Salford, Greater Manchester, United Kingdom.

Objective: To critically evaluate the effect of limb dominance on change of direction (COD) biomechanics associated with increased ACL injury-risk.

Methods: A systematic review of the literature was conducted using Medline and Sport DISCUS databases. Studies that compared COD biomechanics (lower-limb/whole-body kinetics/kinematics) between limbs, contained an approach run, and included physically active participants were included. Read More

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http://dx.doi.org/10.1016/j.ptsp.2019.04.005DOI Listing
April 2019
1 Read

Predictors of Healing Ligament Size and Magnetic Resonance Signal Intensity at 6 Months After Bridge-Enhanced Anterior Cruciate Ligament Repair.

Am J Sports Med 2019 Apr 15:363546519836087. Epub 2019 Apr 15.

Investigation performed at Boston Children's Hospital, Boston, Massachusetts, USA.

Background: Primary repair of the anterior cruciate ligament (ACL) augmented with a tissue engineered scaffold to facilitate ligament healing is a technique under development for patients with ACL injuries. The size (the amount of tissue) and signal intensity (the quality of tissue) of the healing ligament as visualized on magnetic resonance imaging (MRI) have been shown to be related to its strength in large animal models.

Hypothesis: Both modifiable and nonmodifiable risk factors could influence the size and signal intensity of the repaired ligament in patients at 6 months after surgery. Read More

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http://dx.doi.org/10.1177/0363546519836087DOI Listing
April 2019
2 Reads

Visual-Spatial Memory Deficits Are Related to Increased Knee Valgus Angle During a Sport-Specific Sidestep Cut.

Am J Sports Med 2019 Apr 15:363546519834544. Epub 2019 Apr 15.

School of Health and Rehabilitation Sciences, The Ohio State University, Columbus, Ohio, USA.

Background: Identifying athletes at an increased risk of injury is a promising approach to improve the effect of injury prevention interventions; however, it requires first identifying the potential athlete-specific risk factors. Cognitive ability was recently shown to correlate with noncontact anterior cruciate ligament injury rates and lower extremity mechanics, marking an underexplored area. A better understanding of how individuals' cognitive ability is associated with neuromuscular control during sport-specific tasks may improve injury prevention. Read More

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http://dx.doi.org/10.1177/0363546519834544DOI Listing
April 2019
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A non-invasive biomechanical device to quantify knee rotational laxity: Verification of the device in human cadaveric specimens.

Asia Pac J Sports Med Arthrosc Rehabil Technol 2019 Apr 6;16:19-23. Epub 2018 Dec 6.

Department of Orthopaedics and Traumatology, Prince of Wales Hospital, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.

Background: Biomechanical measurement tools have been developed and widely used to precisely quantify knee anterior-posterior laxity after anterior cruciate ligament (ACL) injury. However, validated objective device to document knee rotational laxity, though being developed by different researchers, are not yet widely used in the daily clinical practice. A new biomechanical device was developed to quantify knee internal and external rotations. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S22146873183009
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http://dx.doi.org/10.1016/j.asmart.2018.11.005DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6445399PMC
April 2019
2 Reads

Midterm Outcomes of Arthroscopic Reduction and Internal Fixation of Anterior Cruciate Ligament Tibial Eminence Avulsion Fractures With K-Wire Fixation.

Arthroscopy 2019 Apr 9. Epub 2019 Apr 9.

North Sydney Orthopaedic and Sports Medicine Centre, Mater Clinic, Sydney, Australia; School of Medicine, University of Notre Dame, Sydney, Australia.

Purpose: To determine the clinical and radiological outcomes of patients who underwent arthroscopic reduction and internal fixation of a tibial eminence avulsion fracture with Kirshner wires (K-wires) at a mean of 8 years following surgery.

Methods: This was a retrospective study with prospectively collected data. Inclusion criteria consisted of patients who underwent arthroscopic reduction and internal fixation of tibial eminence fracture with K-wires between 1989 and 2015 at a minimum of 18 months follow-up. Read More

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http://dx.doi.org/10.1016/j.arthro.2018.11.066DOI Listing
April 2019
1 Read

Knee abduction and internal rotation moments increase ACL force during landing through the posterior slope of the tibia.

J Orthop Res 2019 Apr 12. Epub 2019 Apr 12.

Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA.

The mechanism underlying non-contact anterior cruciate ligament (ACL) injury is multi-factorial and still object of debate. Computational models, in combination with in vivo and cadaveric studies, can provide valuable insight into the contribution of the different factors involved. The goal of this study was to validate four knee finite element models (two males and two females) to kinematic and strain data collected in vitro with an impact-driven simulator and use them to assess how secondary external knee loads (knee abduction moment, anterior shear force, and internal rotation torque) affect tibiofemoral contact forces and ACL force during impact. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1002/jor.24313
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http://dx.doi.org/10.1002/jor.24313DOI Listing
April 2019
2 Reads
2.986 Impact Factor

Anatomical single bundle anterior cruciate ligament reconstruction with rounded rectangle tibial tunnel and oval femoral tunnel: a prospective comparative study versus conventional surgery.

Am J Transl Res 2019 15;11(3):1908-1918. Epub 2019 Mar 15.

Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital Beijing, People's Republic of China.

Conventional anatomical single bundle anterior cruciate ligament (ACL) reconstruction technique with round tunnels could not simulate morphology of native insertion, while studies about ACL reconstruction technique with modified tunnels based on morphology of anatomical insertion are rare. The purpose of this study was to demonstrate an ACL reconstruction technique with rounded rectangle tibial tunnel and oval femoral tunnel and compare clinical outcomes with conventional technique. A prospective comparative study was performed in 80 consecutive subjects who underwent ACL reconstruction with the conventional round tunnels (RT-Group, n=40) or modified tunnels (MT-Group, n=40). Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6456533PMC
March 2019
1 Read
3.226 Impact Factor

Accurate Reporting of Concomitant Procedures Is Highly Variable in Studies Investigating Knee Cartilage Restoration.

Cartilage 2019 Apr 11:1947603519841673. Epub 2019 Apr 11.

1 Department of Orthopaedic Surgery, University of California, Los Angeles, Santa Monica, CA, USA.

Objective: Successful clinical outcomes following cartilage restoration procedures are highly dependent on addressing concomitant pathology. The purpose of this study was to document methods for evaluating concomitant procedures of the knee when performed with articular cartilage restoration techniques, and to review their reported findings in high-impact clinical orthopedic studies. We hypothesized that there are substantial inconsistencies in reporting clinical outcomes associated with concomitant procedures relative to outcomes related to isolated cartilage repair. Read More

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http://journals.sagepub.com/doi/10.1177/1947603519841673
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http://dx.doi.org/10.1177/1947603519841673DOI Listing
April 2019
6 Reads

Rehabilitation and nutrition protocols for optimising return to play from traditional ACL reconstruction in elite rugby union players: A case study.

J Sports Sci 2019 Apr 9:1-10. Epub 2019 Apr 9.

c Department of Neurobiology, Physiology, and Behaviour , University of California Davis , Davis, CA , USA.

Current nutrition and exercise focus during rehabilitation periods has been on reducing muscle atrophy associated with immobilisation. This case report outlines a best practice anterior cruciate ligament (ACL) rehabilitation programme undertaken by two professional rugby athletes, with the addition of an evidence-based supplementation (gelatine and vitamin C) and exercise protocol focused on collagenous tissue. Both players ruptured their left ACL and were repaired with a traditional hamstring graft. Read More

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https://www.tandfonline.com/doi/full/10.1080/02640414.2019.1
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http://dx.doi.org/10.1080/02640414.2019.1594571DOI Listing
April 2019
7 Reads

Anatomic femoral tunnel creation during anterior cruciate ligament reconstruction using curved dilator system.

J Orthop Surg (Hong Kong) 2019 May-Aug;27(2):2309499019840822

1 Department of Orthopaedic Surgery, Hallym University Sacred Heart Hospital, Anyang-si, Gyeonggi-do, Korea.

Purpose: Recently, tunnel placements in anatomic positions have been emphasized for successful restoration of knee function after anterior cruciate ligament (ACL) reconstruction. The anteromedial portal technique is considered to be more favorable than the transtibial technique for anatomic femoral tunnel placements; however, it has some technical disadvantages. To minimize these disadvantages, the authors developed the curved dilator system (CDS). Read More

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http://dx.doi.org/10.1177/2309499019840822DOI Listing
April 2019
5 Reads

Proprioception following the Anterior Cruciate Ligament Reconstruction with Tibialis Anterior Tendon Allograft.

J Knee Surg 2019 Apr 8. Epub 2019 Apr 8.

Departments of Orthopedics and Traumatology, Gazi University Tıp Fakültesi, Ankara, Turkey.

After the anterior cruciate ligament (ACL) reconstruction, a loss of proprioception is observed and it can continue years after the operation. The aim of this study is to evaluate proprioception in standing position at different knee flexion angles in patients who underwent ACL reconstruction with tibialis anterior tendon allograft. The study included 34 patients who underwent ACL reconstruction with tibialis anterior tendon allograft and 34 healthy individuals. Read More

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http://dx.doi.org/10.1055/s-0039-1684010DOI Listing
April 2019
2 Reads

Eccentric knee flexor weakness in elite female footballers 1-10 years following anterior cruciate ligament reconstruction.

Phys Ther Sport 2019 Mar 29;37:144-149. Epub 2019 Mar 29.

La Trobe Sport and Exercise Medicine Research Centre, La Trobe University, Melbourne, Australia.

Objectives: To determine eccentric knee flexor strength in elite female Australian Rules Football (ARF) players with and without a history of unilateral anterior cruciate ligament reconstruction (ACLR) using an ipsilateral semitendinosus graft.

Design: Case-control.

Setting: Elite ARF Women's competition. Read More

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http://dx.doi.org/10.1016/j.ptsp.2019.03.010DOI Listing
March 2019
4 Reads

Three-dimensional in vivo kinematics and finite helical axis variables of the ovine stifle joint following partial anterior cruciate ligament transection.

J Biomech 2019 Mar 22. Epub 2019 Mar 22.

McCaig Institute for Bone & Joint Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Schulich School of Engineering, University of Calgary, Calgary, AB, Canada. Electronic address:

Partial anterior cruciate ligament (p-ACL) rupture is a common injury, but the impact of a p-ACL injury on in vivo joint kinematics has yet to be determined in an animal model. The in vivo kinematics of the ovine stifle joint were assessed during 'normal' gait, and at 20 and 40 weeks after p-ACL transection (Tx). Gross morphological scoring of the knee was conducted. Read More

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http://dx.doi.org/10.1016/j.jbiomech.2019.03.021DOI Listing
March 2019
4 Reads

Eight-year results of transtibial nonanatomic single-bundle versus double-bundle anterior cruciate ligament reconstruction: Clinical, radiologic outcomes and survivorship.

J Orthop Surg (Hong Kong) 2019 May-Aug;27(2):2309499019840827

1 Department of Orthopaedic Surgery, Kyung Hee University Hospital, Seoul, Korea.

Purpose:: To compare the long term outcomes of transtibial nonanatomic single-bundle (SB) and double-bundle (DB) anterior cruciate ligament (ACL) reconstruction.

Methods:: Between January 2008 and September 2010, we retrospectively evaluated 377 patients who underwent primary ACL reconstruction and who were available at 8 years of follow-up. Patients who received transtibial nonanatomic SB ACL reconstruction ( n = 263) were assigned to group SB and DB ACL reconstruction ( n = 114) to group DB. Read More

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http://dx.doi.org/10.1177/2309499019840827DOI Listing
April 2019
2 Reads

Assessment of objective dynamic knee joint control in anterior cruciate ligament deficient and reconstructed individuals.

Knee 2019 Apr 3. Epub 2019 Apr 3.

School of Human Kinetics, University of Ottawa, Canada; Department of Physical and Occupational Therapy, Copenhagen University Hospital, Denmark. Electronic address:

Background: There is a lack of objective dynamic knee joint control measures that can be related to the status of the anterior cruciate ligament (ACL). The purpose of this study was to introduce two novel measures and apply a third to determine how dynamic knee joint control changes in relation to ACL status during dynamic movements.

Methods: Twenty patients (13 male) were tested pre- (ACLd) and 10-months post- (ACLr) ACL reconstructive surgery and matched to an uninjured participant (CON). Read More

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http://dx.doi.org/10.1016/j.knee.2019.02.013DOI Listing
April 2019
4 Reads

Editorial Commentary: I Have a Hip Labral Tear? Well, That Makes Sense Because I Had a Labral Tear in My Shoulder Too.

Authors:
Joshua D Harris

Arthroscopy 2019 Apr;35(4):1080-1082

Most acetabular labral tears are caused by abnormal osseous morphology, such as cam and/or pincer morphology and dysplasia. There is a high prevalence of asymptomatic cam morphology, pincer morphology, dysplasia, and acetabular labral tears in the general population. The addition of subjective patient symptoms and objective physical examination findings to imaging (plain radiographs, magnetic resonance imaging, and computed tomography) may yield the diagnosis of femoroacetabular impingement syndrome. Read More

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http://dx.doi.org/10.1016/j.arthro.2019.01.005DOI Listing
April 2019
2 Reads

The correlation between common 2D femoral notch parameters and 3D notch volume: a retrospective MRI study.

BMC Musculoskelet Disord 2019 Apr 6;20(1):146. Epub 2019 Apr 6.

Department of Sports Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Xuhui District, Shanghai, 200233, China.

Background: Although the stenotic femoral intercondylar notch was associated with anterior cruciate ligament (ACL) injuries, the parameters for notch assessment were numerous. The present study aimed to compare the 2-dimensional (2D) femoral notch parameters, including the notch width (NW) and notch width index (NWI), with the 3-dimensional (3D) notch volume based on magnetic resonance imaging (MRI), to determine appropriate femoral parameters for ACL injuries.

Methods: Two hundred forty individuals were included in this study, including 120 patients with ACL ruptures and 120 age- and gender-matched individuals without ACL ruptures. Read More

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http://dx.doi.org/10.1186/s12891-019-2530-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6451777PMC

Lower extremity joint moments throughout gait at two speeds more than 4 years after ACL reconstruction.

Gait Posture 2019 May 25;70:347-354. Epub 2019 Feb 25.

Federal University of Santa Maria, Laboratory of Biomechanics, 1000 Roraima Avenue, building 51, room 1007, ZIP: 97105-900, Santa Maria, RS, Brazil. Electronic address:

Background: Long-term gait adaptations after anterior cruciate ligament reconstruction (ACLR) have been reported. However, it is still unclear if they persist more than 4 years after surgery and if they are affected by gait speed.

Research Question: To investigate differences between groups, legs and walking speeds for ankle, knee and hip joint moments in three planes throughout the stance phase of gait. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S09666362183175
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http://dx.doi.org/10.1016/j.gaitpost.2019.02.025DOI Listing
May 2019
6 Reads

Effect of Blood Flow Restriction Training on Quadriceps Muscle Strength, Morphology, Physiology, and Knee Biomechanics Before and After Anterior Cruciate Ligament Reconstruction: Protocol for a Randomized Clinical Trial.

Phys Ther 2019 Apr 5. Epub 2019 Apr 5.

FACSM, Department of Rehabilitation Sciences, University of Kentucky, 900 S. Limestone, Room 204D, Lexington, KY 40536-0200 (USA); and Department of Orthopaedic Surgery & Sports Medicine, University of Kentucky.

Background: Despite best practice, quadriceps strength deficits often persist for years after anterior cruciate ligament (ACL) reconstruction. Blood flow restriction training (BFRT) is a possible new intervention which applies a pressurized cuff to the proximal thigh that partially occludes blood flow as the patient exercises, which enables patients to train at reduced loads. This training is believed to result in the same benefits as if the patients were training under high loads. Read More

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http://dx.doi.org/10.1093/ptj/pzz062DOI Listing
April 2019
2 Reads

Conditioning Brain Responses to Improve Quadriceps Function in an Individual With Anterior Cruciate Ligament Reconstruction.

Sports Health 2019 Apr 5:1941738119835163. Epub 2019 Apr 5.

Neuromuscular and Rehabilitation Robotics Laboratory (NeuRRo Lab), Department of Physical Medicine and Rehabilitation, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.

Background:: Persistent quadriceps weakness and activation failure are common in individuals with anterior cruciate ligament (ACL) reconstruction. A growing body of evidence indicates that this chronic quadriceps dysfunction could be partly mediated due to reduced corticospinal excitability. However, current rehabilitation approaches do not directly target corticospinal deficits, which may be critical for restoring optimal clinical outcomes after the surgery. Read More

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http://dx.doi.org/10.1177/1941738119835163DOI Listing
April 2019
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Psychometric properties of knee proprioception tests targeting healthy individuals and those with anterior cruciate ligament injury managed with or without reconstruction: a systematic review protocol.

BMJ Open 2019 Apr 4;9(4):e027241. Epub 2019 Apr 4.

Department of Community Medicine and Rehabilitation - Physiotherapy Section, Umeå University, Umeå, Sweden.

Introduction: An anterior cruciate ligament (ACL) injury affects knee proprioception and sensorimotor control and might contribute to an increased risk of a second ACL injury and secondary knee osteoarthritis. Therefore, there is a growing need for valid, reliable and responsive knee proprioception tests. No previous study has comprehensively reviewed all the relevant psychometric properties (PMPs) of these tests together. Read More

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http://dx.doi.org/10.1136/bmjopen-2018-027241DOI Listing
April 2019
5 Reads

The effects of mid-flight whole-body and trunk rotation on landing mechanics: implications for anterior cruciate ligament injuries.

Sports Biomech 2019 Apr 4:1-17. Epub 2019 Apr 4.

a Division of Kinesiology and Health , University of Wyoming , Laramie , WY , USA.

The purpose was to quantify the effects of mid-flight whole-body and trunk rotation on knee mechanics in a double-leg landing. Eighteen male and 20 female participants completed a jump-landing-jump task in five conditions: no rotation, testing leg ipsilateral or contralateral (WBRC) to the whole-body rotation direction, and testing leg ipsilateral (TRI) or contralateral to the trunk rotation direction. The WBRC and TRI conditions demonstrated decreased knee flexion and increased knee abduction angles at initial contact (2. Read More

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https://www.tandfonline.com/doi/full/10.1080/14763141.2019.1
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http://dx.doi.org/10.1080/14763141.2019.1595704DOI Listing
April 2019
14 Reads

Do variants of the intercondylar notch predispose children to the injury of the anterior cruciate ligament?

Clin Anat 2019 Apr 4. Epub 2019 Apr 4.

Department of Diagnostic Imaging, Polish Mother's Memorial Hospital-Research Institute, Rzgowska 281/289, 93-338 Lodz, Poland.

Differences in knee development result in morphological variations observed among individuals. Some of them predispose to significant knee injuries. Although the anatomical risk factors are well established in adults, there is still a need for further research in this area in the group of children. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1002/ca.23382
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http://dx.doi.org/10.1002/ca.23382DOI Listing
April 2019
5 Reads

Correlation Between Magnetic Resonance Imaging and Surgical Exploration of the Anterolateral Structures of the Acute Anterior Cruciate Ligament-Injured Knee.

Am J Sports Med 2019 Apr;47(5):1186-1193

Orthopaedic Unit and Kirk Kilgour Sports Injury Centre, S. Andrea Hospital, University of Rome Sapienza, Rome, Italy.

Background:: Combined anterior cruciate ligament (ACL) and anterolateral ligament (ALL) reconstruction is associated with improved clinical outcomes as compared with isolated intra-articular reconstruction, but the indications are not precisely defined. It may be the case that patients with proven anterolateral injury on preoperative imaging are most likely to benefit, but the accuracy of magnetic resonance imaging (MRI) is not known.

Purpose/hypothesis:: To evaluate the correlation between MRI and surgical exploration in acute ACL-injured knees. Read More

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http://dx.doi.org/10.1177/0363546519831686DOI Listing
April 2019
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4.362 Impact Factor

Ultrastructural and histological changes in tibial remnant of ruptured anterior cruciate ligament stumps: a transmission electron microscopy and immunochemistry-based observational study.

Musculoskelet Surg 2019 Apr 1. Epub 2019 Apr 1.

Jay Prakash Narayan Apex Trauma Center, All India Institute of Medical Sciences (AIIMS), New Delhi, India.

Objectives: Anterior cruciate ligament (ACL) rupture is a common injury and has a non-union rate of 40-100%. Important cellular events, such as fibroblast proliferation, angiogenesis and change in collagen fibril thickness in the ACL remnant, as described in other dense connective tissue, might have an implication in graft recovery following ACL reconstruction. Thus we conducted a study with an aim to characterize the ultrastructural and histological features of ruptured ACL tibial stump and correlate the same with the duration of injury. Read More

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http://link.springer.com/10.1007/s12306-019-00599-x
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http://dx.doi.org/10.1007/s12306-019-00599-xDOI Listing
April 2019
6 Reads

Hybrid graft vs autograft in anterior cruciate ligament reconstruction: a meta-analysis.

Ther Clin Risk Manag 2019 14;15:487-495. Epub 2019 Mar 14.

Department of Joint Surgery, Tianjin Hospital, Tianjin, People's Republic of China,

Purpose: We conducted this meta-analysis to evaluate the efficacy of hybrid grafts in anterior cruciate ligament reconstruction (ACLR).

Methods: We performed an electronic search of the Cochrane Library, PubMed, Embase, and ScienceDirect from the inception of these databases to February 2018, based on the terms "anterior cruciate ligament or ACL reconstruction", "autograft", "hybrid", and "augment". Relevant journals and conference proceedings were searched manually. Read More

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http://dx.doi.org/10.2147/TCRM.S187979DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6422411PMC
March 2019
4 Reads
1.343 Impact Factor

What's the rate of knee osteoarthritis 10 years after anterior cruciate ligament injury? An updated systematic review.

Br J Sports Med 2019 Apr 1. Epub 2019 Apr 1.

Institute of Physiotherapy, OsloMet - Oslo Metropolitan University, Oslo, Norway.

Background: This updated systematic review reports data from 2009 on the prevalence, and risk factors, for knee osteoarthritis (OA) more than 10 years after anterior cruciate ligament (ACL) tear.

Methods: We systematically searched five databases (PubMed, EMBASE, AMED, Cinahl and SPORTDiscus) for prospective and retrospective studies published after 1 August 2008. Studies were included if they investigated participants with ACL tear (isolated or in combination with medial collateral ligament and/or meniscal injuries) and reported symptomatic and/or radiographic OA at a minimum of 10 years postinjury. Read More

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http://dx.doi.org/10.1136/bjsports-2018-099751DOI Listing

Inflammation and Hypervascularization in a Large Animal Model of Knee Osteoarthritis: Imaging with Pathohistologic Correlation.

J Vasc Interv Radiol 2019 Mar 29. Epub 2019 Mar 29.

Department of Radiology, Centre hospitalier de l'Université de Montréal, Research Centre (CRCHUM), 900 rue Saint-Denis, Montreal H2X 0A9, Canada; Clinical Image Processing Laboratory, Centre hospitalier de l'Université de Montréal, Research Centre (CRCHUM), 900 rue Saint-Denis, Montreal H2X 0A9, Canada. Electronic address:

Purpose: To evaluate if synovial inflammation and hypervascularization are present in a dog model of knee osteoarthritis and can be detected on conventional magnetic resonance imaging (MRI), dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), contrast-enhanced magnetic resonance imaging (CE-MRI), and quantitative digital subtraction angiography (Q-DSA) imaging.

Materials And Methods: Six dogs underwent MRI and angiography of both knees before and 12 weeks after right knee anterior cruciate ligament injury. Synovial vascularity was evaluated on CE-MRI, DCE-MRI, and Q-DSA by 2 independent observers. Read More

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http://dx.doi.org/10.1016/j.jvir.2018.09.031DOI Listing
March 2019
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Combined Anterior Cruciate Ligament and Medial Collateral Ligament Knee Injuries: Anatomy, Diagnosis, Management Recommendations, and Return to Sport.

Curr Rev Musculoskelet Med 2019 Mar 30. Epub 2019 Mar 30.

Department of Orthopaedics, Bone and Joint Institute, Milton S. Hershey Medical Center, Pennsylvania State University College of Medicine, 30 Hope Drive, Hershey, PA, 17033, USA.

Purpose Of Review: The diagnosis and management of combined anterior cruciate ligament (ACL) and medial collateral ligament (MCL) injuries have been a controversial topic for several decades. No single approach has proven optimal for treatment and there is no consensus between most specialists. This review seeks to describe and clarify the current state and the future of management. Read More

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http://dx.doi.org/10.1007/s12178-019-09549-3DOI Listing
March 2019
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Does patellar alignment or trochlear morphology predict worsening of patellofemoral disease within the first 5 years after anterior cruciate ligament reconstruction?

Eur J Radiol 2019 Apr 31;113:32-38. Epub 2019 Jan 31.

La Trobe Sport & Exercise Medicine Research Centre, La Trobe University, Bundoora, Australia; Institute of Anatomy, Paracelsus Medical University Salzburg & Nuremburg, Salzburg, Austria. Electronic address:

Purpose: We described patellofemoral alignment and trochlear morphology at one and five years after anterior cruciate ligament reconstruction (ACLR), and evaluated the associations between alignment and trochlear morphology (at one year) and worsening patellofemoral osteoarthritis (OA) features by five years. We also evaluated the associations between alignment and morphology to self-reported pain and function (Knee injury and Osteoarthritis Outcome Score, KOOS) at five years.

Materials And Methods: In this longitudinal observational study, we followed 73 participants (mean age 29[9] years, 40% women) from one- to five-years after ACLR. Read More

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http://dx.doi.org/10.1016/j.ejrad.2019.01.033DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473803PMC
April 2019
4 Reads

Effects of season long participation on ACL volume in female intercollegiate soccer athletes.

J Exp Orthop 2019 Mar 28;6(1):12. Epub 2019 Mar 28.

Quinnipiac University, School of Health Sciences, Hamden, CT, USA.

Background: The aim of this study was to characterize the volumetric changes of the anterior cruciate ligament over the course of a competitive soccer season in female athletes.

Methods: Seventeen Division-I collegiate soccer players were recruited. Two data collection sessions were conducted. Read More

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http://dx.doi.org/10.1186/s40634-019-0182-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6438997PMC
March 2019
1 Read

Effect of Oral Contraceptives on Soft Tissue Injury Risk, Soft Tissue Laxity, and Muscle Strength: A Systematic Review of the Literature.

Orthop J Sports Med 2019 Mar 22;7(3):2325967119831061. Epub 2019 Mar 22.

Department of Orthopaedic Surgery, Stanford University Medical Center, Stanford, California, USA.

Background: Female patients are more likely than male patients to experience various musculoskeletal (MSK) injuries. Because MSK tissues are sensitive to the female hormones relaxin, estrogen, and progesterone, studies have examined whether hormonal contraceptives, which change female hormone levels, can alter the female MSK injury risk. These studies have reached contradictory conclusions, leaving unclear the influence of hormonal contraception on female MSK injury risk. Read More

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http://dx.doi.org/10.1177/2325967119831061DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6431771PMC
March 2019
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Recovery of knee extension and incidence of extension deficits following anterior cruciate ligament injury and treatment: a systematic review protocol.

J Orthop Surg Res 2019 Mar 28;14(1):88. Epub 2019 Mar 28.

Orthopaedics Department, Queen Elizabeth II Jubilee Hospital, Brisbane, QLD, Australia.

Introduction: Knee extension deficit or loss of extension (LOE) is a potential complication following ACL reconstruction (ACLR); however, the change in postoperative knee extension during rehabilitation is not well defined. The aim of this review is to establish the trajectory of knee extension recovery and incidence of knee extension deficit during rehabilitation after ACL rupture.

Methods And Analysis: A systematic search will be conducted in MEDLINE, Embase, Cochrane Library, Scopus, SPORTDiscus, and relevant trials databases of English language papers in publication as of May 2018, with no restrictions on publication year applied. Read More

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http://dx.doi.org/10.1186/s13018-019-1127-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6437951PMC
March 2019
1 Read

Sex Differences in Common Sports-Related Injuries.

NASN Sch Nurse 2019 Mar 28:1942602X19840809. Epub 2019 Mar 28.

Clinical Research Coordinator Brigham and Women's Hospital Department of Women's Sports Medicine.

Sex plays a role in mediating different susceptibilities and outcomes of disease and injury. Sports injuries are included in this phenomenon, as recent research demonstrates that males and females show differences in incidences of varying injuries, presentations of injury, and treatment outcomes. Incidence of certain sports injuries like anterior cruciate ligament injury or patellofemoral pain syndrome may vary widely between male and female athletes, with female athletes being more susceptible to anterior cruciate ligament injury and patellofemoral pain syndrome. Read More

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http://dx.doi.org/10.1177/1942602X19840809DOI Listing
March 2019
3 Reads

Posterior tibial bone bruising associated with posterior-medial meniscal tear in patients with acute anterior cruciate ligament injury.

Knee Surg Sports Traumatol Arthrosc 2019 Mar 26. Epub 2019 Mar 26.

Sports Surgery Clinic, Dublin, Ireland.

Purpose: To evaluate whether medial-sided bone bruising was associated with postero-medial meniscal tears in patients with an acute rupture of their anterior cruciate ligament (ACL).

Methods: A retrospective analysis of 150 consecutive patients who had an MRI scan within 8 weeks of their ACL rupture that underwent an ACL reconstruction was performed. Based on the intra-operative findings, two groups were identified: Group A (N = 75) had no postero-medial meniscal tear associated with the acute ACL rupture and Group B (N = 75) had a postero-medial meniscal tear found at time of reconstruction. Read More

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http://dx.doi.org/10.1007/s00167-019-05490-7DOI Listing
March 2019
1 Read