17,775 results match your criteria Anterior Cruciate Ligament Injury


Meniscal Root Tears: A Decade of Research on their Relevant Anatomy, Biomechanics, Diagnosis, and Treatment.

Arch Bone Jt Surg 2022 May;10(5):366-380

Twin Cities Orthopedics, Edina-Crosstown, Edina, MN, USA.

A foundational knowledge of the anatomy and biomechanics of meniscal root tears is warranted for proper repair of meniscal root tears and for preventing some of their commonly described iatrogenic causes. Meniscal root tears are defined as either a radial tear occurring within one cm of the root attachment site of the meniscus or a complete bony or soft tissue avulsion of the root attachment altogether. Meniscal root tears disrupt the protective biomechanical function of the native meniscus. Read More

View Article and Full-Text PDF

Clinical and Radiological Outcomes of Closed-Loop, Double Button, Coracoclavicular Fixation for Extralateral (Neer Type IIC) Fractures of the Distal Clavicle.

Cureus 2022 May 22;14(5):e25228. Epub 2022 May 22.

Orthopaedic Department, Medical School, University of Patras, Patras, GRC.

Background: The distal end of the clavicle accounts for 10-28% of all clavicle fractures of which 52.8% are considered displaced and require internal fixation due to their high percentage of non-union. Numerous surgical techniques have been described for the well-known Neer types IIA, IIB, and V. Read More

View Article and Full-Text PDF

Patellar Height Correlates Modestly With Trochlear Dysplasia: A Magnetic Resonance Imaging Analysis.

Arthrosc Sports Med Rehabil 2022 Jun 4;4(3):e1031-e1037. Epub 2022 Apr 4.

Elite Sports Medicine @ Connecticut Children's Medical Center, Farmington, Connecticut, U.S.A.

Purpose: To evaluate whether there is a correlation between the position of the patella and trochlear morphology in patients with and without patellar instability using exclusively MRI measurements.

Methods: MRI scans of knees in patients with patellofemoral instability and knees of patients with an ACL (anterior cruciate ligament) tear as a control group were reviewed. Measurements of patellar position (Canton-Deschamps ratio, Patellar Trochlear Index, and lateral patellar inclination) and trochlear morphology (lateral trochlear inclination and sulcus angle) were obtained from each scan. Read More

View Article and Full-Text PDF

ACL Reconstruction Patients Have Increased Risk of Knee Arthroplasty at 15 Years of Follow-up: Data from the Norwegian Knee Ligament Register and the Norwegian Arthroplasty Register from 2004 to 2020.

JB JS Open Access 2022 Apr-Jun;7(2). Epub 2022 Jun 21.

The Norwegian Knee Ligament Register, Department of Orthopedic Surgery, Haukeland University Hospital, Bergen, Norway.

Anterior cruciate ligament (ACL) injury is considered a risk factor for osteoarthritis. The primary aim of the present study was to investigate the cumulative risk of, and risk factors associated with, a subsequent knee arthroplasty after an ACL reconstruction at up to 15 years of follow-up. The secondary aim was to compare the relative risk of knee arthroplasty after ACL reconstruction compared with that in the general population. Read More

View Article and Full-Text PDF

Batch Fabrication of a Polydimethylsiloxane Based Stretchable Capacitive Strain Gauge Sensor for Orthopedics.

Polymers (Basel) 2022 Jun 8;14(12). Epub 2022 Jun 8.

Department of Microsystems Engineering-IMTEK, University of Freiburg, 79110 Freiburg im Breisgau, Germany.

Polymer-based capacitive strain gauges are a novel and promising concept for measuring large displacements and strains in various applications. These novel sensors allow for high strain, well above the maximum values achieved with state-of-the-art strain gauges (Typ. 1%). Read More

View Article and Full-Text PDF

Anatomy, Biomechanics, and Reconstruction of the Anterolateral Ligament of the Knee Joint.

Medicina (Kaunas) 2022 Jun 10;58(6). Epub 2022 Jun 10.

Department of Orthopaedic Surgery, Anam Hospital, Korea University College of Medicine, Seoul 02841, Korea.

Despite remarkable advances in the clinical outcomes after anterior cruciate ligament reconstructions (ACLRs), residual rotational instability of the knee joint remains a major concern. Since the anterolateral ligament (ALL) on the knee joint has been "rediscovered", the role of anterolateral structures, including ALL and deep iliotibial band, as secondary stabilizers of anterolateral rotatory instability has gained interest. This interest has led to the resurgence of anterolateral procedures combined with ACLRs to restore rotational stability in patients with anterior cruciate ligament (ACL) deficiencies. Read More

View Article and Full-Text PDF

The Relationship between the Hamstring-to-Quadriceps Ratio and Jumping and Sprinting Abilities of Young Male Soccer Players.

Int J Environ Res Public Health 2022 Jun 18;19(12). Epub 2022 Jun 18.

Department of Child Development, Faculty of Health Science, Bilecik Şeyh Edebali University, Bilecik 11000, Turkey.

The correct torque ratio between the knee joint extensor and flexor muscle groups can effectively prevent injuries to the anterior cruciate ligament and hamstring strain. However, it is unclear whether a high torque ratio of the knee joint flexor muscles to the extensor muscles is beneficial for sport performance. Therefore, the aim of the study was to investigate the relationship between the hamstring-to-quadriceps (H/Q) ratio and sprint times (10- and 30-m) and jump heights (CMJ-countermovement jump and SJ-squat jump) in soccer players. Read More

View Article and Full-Text PDF

Higher return to pre-injury type of sports after revision anterior ligament reconstruction with lateral extra-articular tenodesis compared to without lateral extra-articular tenodesis.

Knee Surg Sports Traumatol Arthrosc 2022 Jun 23. Epub 2022 Jun 23.

Centre for Orthopaedic Surgery and Sports Medicine OCON, Hengelo, The Netherlands.

Purpose: To evaluate the rate of return to pre-injury type of sports (RTS type) in patients after revision anterior cruciate ligament reconstruction (ACLR) with lateral extra-articular tenodesis (LET) compared to patients after revision ACLR without LET.

Methods: Seventy-eight patients who underwent revision ACLR with an autologous ipsilateral bone-patellar tendon-bone autograft with and without LET were included at least one year after surgery (mean follow-up: 43.9, SD: 29. Read More

View Article and Full-Text PDF

Adjustable-loop implants are non-inferior to fixed-loop implants for femoral fixation in anterior cruciate ligament reconstruction.

Knee Surg Sports Traumatol Arthrosc 2022 Jun 23. Epub 2022 Jun 23.

Department of Orthopaedics, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200, Aarhus N, Denmark.

Purpose: Button implants with an adjustable-loop device (ALD) are often used in anterior cruciate ligament reconstruction (ACLR). Clinical research comparing ALDs with fixed-loop devices (FLD) has mainly been conducted in small patient populations with short follow-up times. To determine whether ALDs are safe to use in ACLR, a non-inferiority study with a large sample population and a long follow-up period would be beneficial. Read More

View Article and Full-Text PDF

Mechanoreceptor analysis on femoral and tibial site remnant of anterior cruciate ligament injury using immunohistochemistry.

Ann Med Surg (Lond) 2022 Jun 30;78:103849. Epub 2022 May 30.

Department of Anatomical Pathology, Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Indonesia.

Introductions: More than 50% of knee ligament injuries are anterior cruciate ligament (ACL) injuries. The injury can lead to instability and osteochondral damage which in turn leads to early osteoarthritis. ACL remnant contains sensory nerve cells and mechanoreceptors which are useful for reinnervation of the graft and maintaining the knee stability. Read More

View Article and Full-Text PDF

A radiographic model predicting the status of the anterior cruciate ligament in varus knee with osteoarthritis.

BMC Musculoskelet Disord 2022 Jun 22;23(1):603. Epub 2022 Jun 22.

Graduate School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.

Purpose: The study aims to investigate the accuracy of different radiographic signs for predicting functional deficiency of anterior cruciate ligament (ACL) and test whether the prediction model constructed by integrating multiple radiographic signs can improve the predictive ability.

Methods: A total number of 122 patients from January 1, 2018, to September 1, 2021, were enrolled in this study. Among them, 96 patients were classified as the ACL-functional (ACLF) group, while 26 patients as the ACL-deficient (ACLD) group after the assessment of magnetic resonance imaging (MRI) and the Lachman's test. Read More

View Article and Full-Text PDF

Stronger Subjects Select a Movement Pattern That May Reduce Anterior Cruciate Ligament Loading During Cutting.

J Strength Cond Res 2022 Jul 8;36(7):1853-1859. Epub 2021 Mar 8.

Faculty of Sport Health and Applied Science, St Mary's University, Twickenham, London.

Abstract: Davies, WT, Ryu, JH, Graham-Smith, P, Goodwin, JE, and Cleather, DJ. Stronger subjects select a movement pattern that may reduce anterior cruciate ligament loading during cutting. J Strength Cond Res 36(7): 1853-1859, 2022-Increased strength has been suggested to reduce the incidence of anterior cruciate ligament (ACL) injury as part of wider neuromuscular training programs; however, the mechanism of this is not clear. Read More

View Article and Full-Text PDF

Young men are at higher risk of failure after ACL hamstring reconstructions: a retrospective multivariate analysis.

BMC Musculoskelet Disord 2022 Jun 21;23(1):598. Epub 2022 Jun 21.

Department of Orthopaedic Surgery, Isala, Postbus 10400, 8000 GK, Zwolle, Netherlands.

Background: Results of ACL reconstruction are influenced by both patient and surgical variables. Until now a significant amount of studies have focused on the influence of surgical technique on primary outcome, often leaving patient variables untouched. This study investigates the combined influence of patient and surgical variables through multivariate analysis. Read More

View Article and Full-Text PDF

Return to play in paediatric & adolescent patients following anterior cruciate ligament reconstruction.

Knee 2022 Jun 18;37:87-94. Epub 2022 Jun 18.

Sports Surgery Clinic, Santry, Dublin, Ireland.

Background: There is an increased risk of anterior cruciate ligament (ACL) rupture and subsequent ACL reconstruction in patients <18 years old due to their high levels of sporting participation.

Purpose: The purpose of this study was to assess the rate and timing of return to play (RTP) in paediatric and adolescent patients following ACL reconstruction, and to compare the outcomes between those undergoing ACL reconstruction with bone patella tendon bone autograft (BTB) and hamstring tendon (HT) autograft.

Study Design: Level of Evidence: Level III; Retrospective Comparative Cohort Study. Read More

View Article and Full-Text PDF

Deep learning to detect anterior cruciate ligament tear on knee MRI: multi-continental external validation.

Eur Radiol 2022 Jun 21. Epub 2022 Jun 21.

Institut de Radiologie de Sion, Groupe 3R, Sion, Switzerland.

Objectives: To develop a deep-learning algorithm for anterior cruciate ligament (ACL) tear detection and to compare its accuracy using two external datasets.

Methods: A database of 19,765 knee MRI scans (17,738 patients) issued from different manufacturers and magnetic fields was used to build a deep learning-based ACL tear detector. Fifteen percent showed partial or complete ACL rupture. Read More

View Article and Full-Text PDF

Notchplasty is associated with decreased risk of anterior cruciate ligament graft revision.

Eur J Orthop Surg Traumatol 2022 Jun 20. Epub 2022 Jun 20.

Department of Orthopaedics, University of Edinburgh, Edinburgh, UK.

Purpose: Despite influencing knee biomechanics and outcomes, the use of notchplasty at time of anterior cruciate ligament reconstruction (ACLR) has not been evaluated with regards to risk of secondary injury and revision. This study evaluates this association.

Methods: 42 patients (21. Read More

View Article and Full-Text PDF

Epidemiological profile of anterior cruciate ligament injuries in a tertiary referral trauma center of Nepal.

BMC Musculoskelet Disord 2022 Jun 21;23(1):595. Epub 2022 Jun 21.

AKB Center for Arthroscopy, Sports Injuries and Regenerative Medicine, B&B Hospital, Gwarko, Lalitpur, Nepal.

Background: Sports related injuries are the leading cause of Anterior Cruciate Ligament (ACL) tear in the Western world. Although professional and recreational sporting activities are increasing in Nepal, they are not as common and prevalent in comparison to western world. In contrast, Road Traffic Accident (RTA) is a very common cause of knee injuries in Nepal. Read More

View Article and Full-Text PDF

Patients Who Return to Sport After Primary Anterior Cruciate Ligament Reconstruction Have Significantly Higher Psychological Readiness: A Systematic Review and Meta-analysis of 3744 Patients.

Am J Sports Med 2022 Jun 20:3635465221102420. Epub 2022 Jun 20.

Department of Orthopaedic Surgery, Stanford University School of Medicine, Redwood City, California, USA.

Background: Although objective outcomes assessing knee function are essential measurements for return to sport, psychological factors have become increasingly recognized as equally important parameters for determining an athlete's ability to return to sport after surgery.

Purpose: To systematically review the literature to determine whether patients who returned to sport after anterior cruciate ligament (ACL) reconstruction had improved psychological scores (as measured with validated questionnaires) compared with patients who did not return to sport.

Study Design: Systematic review and meta-analysis; Level of evidence, 3. Read More

View Article and Full-Text PDF

Effects of Male and Female Sex on the Development of Posttraumatic Osteoarthritis in the Porcine Knee After Anterior Cruciate Ligament Surgery.

Am J Sports Med 2022 Jun 20:3635465221102118. Epub 2022 Jun 20.

Department of Orthopaedics, Warren Alpert Medical School of Brown University and Rhode Island Hospital, Providence, Rhode Island, USA.

Background: Posttraumatic osteoarthritis (PTOA) is a common sequela of anterior cruciate ligament (ACL) injury, even when surgical treatment is selected. The effect of patient sex on cartilage health after ACL injury and surgical treatment has been less studied.

Purpose/hypothesis: The study objective was to compare the macroscopic cartilage damage that develops after ACL surgery in male and female Yucatan minipigs. Read More

View Article and Full-Text PDF

The relationship between kinesiophobia and biomechanics in anterior cruciate ligament reconstructed females.

Phys Ther Sport 2022 Jun 11;56:32-37. Epub 2022 Jun 11.

Loma Linda University School of Allied Health Professions, USA.

Objective: Kinesiophobia has been associated with deleterious biomechanical alterations during dual-limb landing tasks in anterior cruciate ligament (ACL) reconstructed females, however, no research has yet investigated single-limb tasks related to ACL injury. The aim of this investigation was to examine the relationship between kinesiophobia and biomechanics during a series of dual and single-limb functional tasks associated with ACL injury risk.

Design: Cross-sectional study. Read More

View Article and Full-Text PDF

Entry angle during jump landing changes biomechanical risk factors for ACL injury.

Sports Biomech 2022 Jun 17:1-13. Epub 2022 Jun 17.

Department of Kinesiology, Iowa State University, Ames, IA, USA.

ACL injuries are common among athletes. The injury usually occurs during sport movements involving sudden direction changes when landing and cutting. Twenty-one healthy females performed a series of jump-land-jump movements. Read More

View Article and Full-Text PDF

Sport Participation and Psychosocial Factors Which Influence Athletic Identity in Youth Athletes With Anterior Cruciate Ligament Injury.

Front Psychol 2022 31;13:906300. Epub 2022 May 31.

Center for Excellence in Sports Medicine, Scottish Rite for Children Orthopedic and Sports Medicine Center, Frisco, TX, United States.

Athletic identity, or the degree with which individuals identify with the athlete role, is an important rehabilitation factor for sports care providers to consider; however, it lacks extensive study in youth. The purpose of this study was to identify demographic, sport participation, and psychosocial measures which correlate with youth athletic identity after anterior cruciate ligament injury. Participants completed standardized sports medicine intake and patient-reported outcome measures, including the Athletic Identity Measurement Scale (AIMS). Read More

View Article and Full-Text PDF

Efficacy of Stem Cell Therapy for Tendon Graft Ligamentization After Anterior Cruciate Ligament Reconstruction: A Systematic Review.

Orthop J Sports Med 2022 Jun 10;10(6):23259671221098363. Epub 2022 Jun 10.

Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Institute of Sports Medicine, Peking University Third Hospital, Peking University, Beijing, China.

Background: Sufficient intra-articular graft ligamentization enhances the biomechanical and biological properties of the femur-graft-tibia complex to ensure knee stability after anterior cruciate ligament (ACL) reconstruction using a tendon graft. It remains unclear whether stem cell therapy promotes tendon graft ligamentization.

Purpose/hypothesis: The purpose of this study was to compare tendon graft ligamentization after primary ACL reconstruction with versus without stem cell therapy. Read More

View Article and Full-Text PDF

Automated detection of anterior cruciate ligament tears using a deep convolutional neural network.

BMC Musculoskelet Disord 2022 Jun 15;23(1):577. Epub 2022 Jun 15.

Center for Preventive Medical Sciences, Chiba University, Chiba, Japan.

Background: The development of computer-assisted technologies to diagnose anterior cruciate ligament (ACL) injury by analyzing knee magnetic resonance images (MRI) would be beneficial, and convolutional neural network (CNN)-based deep learning approaches may offer a solution. This study aimed to evaluate the accuracy of a CNN system in diagnosing ACL ruptures by a single slice from a knee MRI and to compare the results with that of experienced human readers.

Methods: One hundred sagittal MR images from patients with and without ACL injuries, confirmed by arthroscopy, were cropped and used for the CNN training. Read More

View Article and Full-Text PDF

'Such a massive part of rehab is between the ears'; barriers to and facilitators of anterior cruciate ligament reconstruction rehabilitation: a qualitative focus group analysis.

BMC Sports Sci Med Rehabil 2022 Jun 15;14(1):106. Epub 2022 Jun 15.

Faculty of Health Sciences and Medicine, Bond University, Gold Coast, 4226, Australia.

Background: Current evidence demonstrates that few patients complete anterior cruciate ligament reconstruction rehabilitation according to evidence-based guidelines. It is important to investigate the viewpoints of our patients to identify patient-reported barriers and facilitators of anterior cruciate ligament reconstruction rehabilitation. Qualitative analysis can provide insight into potential methods for improving the delivery of rehabilitation services. Read More

View Article and Full-Text PDF

Return to work following anterior cruciate ligament reconstruction.

Acta Orthop 2022 Jun 14;93:554-559. Epub 2022 Jun 14.

Department of Orthopedics and Traumatology Turku, Turku University Hospital and University of Turku, Turku, Finland; Satasairaala Central Hospital, Pori, Finland.

Background And Purpose: Amongst people of working age, the return to work (RTW) after anterior cruciate ligament (ACL) reconstruction is an important marker of success of surgery. We determined when patients are able to return to work after ACL reconstruction and identified factors that are associated with the timing of RTW.

Patients And Methods: We used logistic regression analyses to examine patient-related factors that may be associated with the length of RTW (above vs. Read More

View Article and Full-Text PDF

ACL surgical trends evolve in the last five years for young European surgeons: results of the survey among the U45 ESSKA members.

Knee Surg Sports Traumatol Arthrosc 2022 Jun 14. Epub 2022 Jun 14.

Department of Orthopaedic Surgery, Centre Hospitalier de Luxembourg‑Clinique, D'Eich 78 Rue d'Eich, 1460, Luxembourg, Luxembourg.

Purpose: Although the outcomes of ACL reconstruction are generally satisfying, there are several patients who do not regain their pre-injury sporting level and suffer persistent symptoms. Orthopaedic practice has evolved significantly over the last five years to address these drawbacks. The aim of the present survey was to analyze the changes in the approach to ACL reconstruction among a population of young ESSKA surgeons dedicated to ACL surgery. Read More

View Article and Full-Text PDF

Case Report Demonstrating Multifactorial Risks of Anterior Cruciate Ligament Re-tear Injuries and Appropriate Response Among Those With High Chance of Recurrence.

Cureus 2022 May 13;14(5):e24965. Epub 2022 May 13.

Orthopedic Surgery, Lake Erie College of Osteopathic Medicine, Bradenton, USA.

We present the case of a collegiate football player with an extensive bilateral ligamentous knee injury history to elucidate the mechanisms and possible explanations behind why some athletes sustain recurrent injuries. We hope to initiate thought on altering rehabilitation schedules for athletes who are at an increased risk of re-injury. A 21-year-old collegiate American football player presented with a re-tear of his left anterior cruciate ligament (ACL) and medial meniscus following reconstructive surgery. Read More

View Article and Full-Text PDF

What tests should be used to assess functional performance in youth and young adults following anterior cruciate ligament or meniscal injury? A systematic review of measurement properties for the OPTIKNEE consensus.

Br J Sports Med 2022 Jun 13. Epub 2022 Jun 13.

Division of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway.

Objectives: To critically appraise and summarise measurement properties of functional performance tests in individuals following anterior cruciate ligament (ACL) or meniscal injury.

Design: Systematic review.

Data Sources: Systematic searches were performed in Medline (Ovid), Embase (Ovid), CINAHL (EBSCO) and SPORTSDiscus (EBSCO) on 7 July 2021. Read More

View Article and Full-Text PDF

Measurement properties of the Brazilian Portuguese anterior cruciate ligament - return to sport after injury (ACL-RSI) scale short version after anterior cruciate ligament reconstruction.

Braz J Phys Ther 2022 Jun 2;26(4):100421. Epub 2022 Jun 2.

Knee and Sports Research Group, Federal University of Ceará, Rua Alexandre Baraúna, 949, 1° andar, Rodolfo Teófilo, Fortaleza, CE CEP: 60430-160, Brazil; Master Program in Physiotherapy and Functioning, Federal University of Ceará, Fortaleza, CE, Brazil. Electronic address:

Background: Higher scores (closer to 100) on the Anterior Cruciate Ligament - Return to Sport after Injury (ACL-RSI) scale indicate better psychological readiness to return to sport after anterior cruciate ligament reconstruction (ACLR).

Objectives: To verify the validity and reliability of the ACL-RSI-short version (ACL-RSI-SV) in Brazilian Portuguese in individuals who underwent ACLR.

Methods: Participants (n=168) answered the Brazilian versions of ACL-RSI, Tampa Scale for Kinesiophobia (TSK-17), and International Knee Documentation Committee (IKDC) to assess the convergent validity of the short version. Read More

View Article and Full-Text PDF