5,702 results match your criteria Hamstring Strain


Biomechanical Evaluation of Virtual Reality-based Turning on a Self-Paced Linear Treadmill.

Gait Posture 2018 Sep 24;65:157-162. Epub 2018 Jul 24.

Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea (Keonyoung Oh: Hyung-Soon Park:

Background: Patients with brain injuries such as Parkinson's disease or stroke exhibit abnormal gait characteristics especially during gait transitions such as step initiation and turning. Since such transitions could precipitate falls and resultant injuries, evaluation and rehabilitation of non-steady state gait in those patients are important. Whereas body weight supported treadmill training (BWSTT) provides a safe and controlled environment for gait training, it is unable to adequately train for gait transitions since the typical linear treadmill does not allow for changes in walking direction and natural fluctuations in speed. Read More

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September 2018
5 Reads

Direct Comparison of Modified Jobe and Docking Ulnar Collateral Ligament Reconstruction at Midterm Follow-up.

Am J Sports Med 2018 Nov 30:363546518812421. Epub 2018 Nov 30.

Burke and Bradley Orthopedics, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.

Background:: The modified Jobe and docking techniques are the 2 most commonly employed techniques for ulnar collateral ligament (UCL) reconstruction among overhead athletes. However, no study has directly compared these techniques performed by a single surgeon. Current comparisons of these techniques have relied solely on systematic reviews and biomechanical studies. Read More

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November 2018

Influence of a periodized circuit training protocol on intermuscular adipose tissue of patients with knee osteoarthritis: protocol for a randomized controlled trial.

BMC Musculoskelet Disord 2018 Nov 30;19(1):421. Epub 2018 Nov 30.

Department of Physical Therapy, Federal University of São Carlos (UFSCar), Km 235,Rod. Washington Luís-SP310, Postal code, São Carlos, (SP), 13565-905, Brazil.

Background: The objective of this study is to analyze the influence of a 14-week periodized circuit training protocol on patients with knee osteoarthritis (OA), in randomized intervention groups, on thigh intermuscular adipose tissue (interMAT), body composition, systemic inflammation, cartilage degradation, and its repercussion on pain, functional performance and quality of life.

Methods: This study presents a protocol for a randomized controlled trial. Sixty selected participants diagnosed with knee OA grades II and III, 40-65 years old and BMI < 30 kg/m will be randomly divided into three groups:periodized circuit training, strength training, and educational protocol. Read More

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November 2018

Limited predictive value of pre-surgical level of functioning for functioning at 3 and 12 months after TKA.

Knee Surg Sports Traumatol Arthrosc 2018 Nov 28. Epub 2018 Nov 28.

Department of Epidemiology, Maastricht University, Maastricht, The Netherlands.

Purpose: A total knee arthroplasty (TKA) is a cost-effective option to relieve pain and improve knee function in patients suffering from osteoarthritis. However, results differ among patients. The predictive value of pre-surgically assessed factors on the level of functioning after 3 and 12 months was investigated in this study. Read More

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November 2018

Mechanical assessment of tripled hamstring tendon graft when using suspensory fixation for cruciate ligament reconstruction.

J Exp Orthop 2018 Nov 27;5(1):48. Epub 2018 Nov 27.

Ortho One Orthopaedic Speciality Center, Coimbatore, Tamil Nadu, India.

Background: Tripling semitendinosus tendon for ACL graft preparation facilitates creation of longer and thicker grafts. Our objective was to evaluate the mechanical difference between tripled tendon grafts, prepared by three methods, by comparing with quadrupled tendon graft.

Methods: Bovine hind-foot hoof extensors were allocated to four groups. Read More

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November 2018

Patient-Specific Parameters Associated With Traction in Primary and Revision Hip Arthroscopic Surgery.

Orthop J Sports Med 2018 Nov 19;6(11):2325967118807707. Epub 2018 Nov 19.

Department of Orthopaedics, University of Utah School of Medicine, Salt Lake City, Utah, USA.

Background: Distraction of the hip joint is a necessary step during hip arthroscopic surgery. The force of traction needed to distract the hip is not routinely measured, and little is known about which patient factors may influence this force.

Purpose: To quantify the force of traction required for adequate distraction of the hip during arthroscopic surgery and explore the relationship between hip joint stiffness and patient-specific demographics, flexibility, and anatomy. Read More

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November 2018

The Risk Factors of Hamstring Strain Injury Induced by High-Speed Running.

J Sports Sci Med 2018 Dec 20;17(4):650-655. Epub 2018 Nov 20.

Graduate School of Health and Sport Sciences, Chukyo University, Aichi, Japan.

Hamstring strain injury is a multifactorial and complex problem involving interactions among various factors. Information about risk factors for this injury is inconsistent among studies because the strong effects of confounding factors and injury situations are often ignored. We investigated the relationship between hamstring strain induced by high-speed running and intrinsic risk factors, including hip muscle morphology and function, by excluding the influences of confounding factors. Read More

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December 2018
2 Reads

Can Elite Dancers Return to Dance After Ultrasound-Guided Platelet-Rich Plasma (PRP) Injections?

J Dance Med Sci 2018 Dec;22(4):225-232

Center for Musculoskeletal Care, New York University Langone Medical Center, New York, New York, USA.

Dancers exert tremendous stresses on the lower extremities rendering them prone to injuries that can curtail training and performance. The goal of this study was to evaluate clinical improvement in a population of elite dancers following treatment with ultrasound-guided platelet-rich plasma (PRP) injections of various lower extremity sites by assessing when they were able to return to dance. Nineteen dancers (13 female, 6 male; ages 15 to 42) were treated between 2009 and 2016 at sites that included: hamstring tendon (1), proximal iliotibial band (1), patellar tendon (3), posterior tibial tendon (5), peroneus brevis tendon (3), plantar fascia (3), and the first metatarsophalangeal (MTP) joint capsule (3). Read More

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December 2018
2 Reads

Some Effects of Supplemental Pilates Training on the Posture, Strength, and Flexibility of Dancers 17 to 22 Years of Age.

J Dance Med Sci 2018 Dec;22(4):192-202

Johns Hopkins Physical Medicine and Rehabilitation, Johns Hopkins Medical Center, Baltimore Maryland, USA.

Proper alignment in dancers is a pre-requisite for achieving aesthetic line and form and for efficient execution of movement. Pelvic alignment is a common deficit in dancers that results in faulty technique and impaired performance. Dancers must be able to obtain their personal neutral alignment to avoid injury and achieve ease of execution. Read More

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December 2018
2 Reads

5-Year Survival of Pediatric Anterior Cruciate Ligament Reconstruction With Living Donor Hamstring Tendon Grafts.

Am J Sports Med 2018 Nov 26:363546518804502. Epub 2018 Nov 26.

North Sydney Orthopaedic and Sports Medicine Centre, Wollstonecraft, New South Wales, Australia.

Background:: It is well accepted that there is a higher incidence of repeat anterior cruciate ligament (ACL) injuries in the pediatric population after ACL reconstruction (ACLR) with autograft tissue compared with adults. Hamstring autograft harvest may contribute to the risk for repeat ACL injuries in this high functional demand group. A novel method is the use of a living donor hamstring tendon (LDHT) graft from a parent; however, there is currently limited research on the outcomes of this technique, particularly beyond the short term. Read More

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November 2018
1 Read

Hamstring lengthening in cerebral palsy and the use of musculoskeletal modelling.

Authors:
Caroline Stewart

Dev Med Child Neurol 2018 Nov 25. Epub 2018 Nov 25.

ORLAU - RJAH Orthopaedic Hospital, Oswestry, Shropshire, UK.

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November 2018
1 Read

Long-term muscle changes after hamstring lengthening in children with bilateral cerebral palsy.

Dev Med Child Neurol 2018 Nov 25. Epub 2018 Nov 25.

Clinic for Orthopedic and Trauma Surgery, University Hospital Heidelberg, Heidelberg, Germany.

Aim: To evaluate short-term (1y postoperatively; E1) and long-term (at least 4y postoperatively; E2) changes in hamstring muscle-tendon length (MTL) and lengthening velocity after hamstring lengthening in children with bilateral cerebral palsy (CP).

Method: Three-dimensional gait analysis was performed in 19 children (16 males, 3 females; 36 limbs; mean age at surgery 9y [SD 3y]; range 6-10y) with flexed knee gait, preoperative ankle dorsiflexion lower than 20 degrees, and CP before bilateral hamstring lengthening (E0), at E1 and E2. Hamstring MTL (normalized by leg length) and velocity were assessed via OpenSim software. Read More

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November 2018
2 Reads

Are athletes able to resume sport at six-month mean follow-up after anterior cruciate ligament reconstruction? Prospective functional and psychological assessment from the French Anterior Cruciate Ligament Study (FAST) cohort.

Knee 2018 Nov 22. Epub 2018 Nov 22.

Clinique du Sport Paris, Paris, France; Institut de l'Appareil Locomoteur Nollet, Paris, France; Racing 92, Le Plessis-Robinson, France.

Background: The decision to return to sport following anterior cruciate ligament (ACL) reconstruction should not only be based on time since surgery. This study aimed to assess, using isokinetic and neuromuscular (hops) testing in a large group, postoperative objective functional recovery of the knee. The secondary objective was to determine the relationship between psychological, functional scores, and these postoperative tests. Read More

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November 2018
1 Read

Surgical fenestration and rehabilitation of a sports traumatic non-union ischial tuberosity fracture - Case report.

Int J Surg Case Rep 2018 Nov 17;53:362-366. Epub 2018 Nov 17.

Department of Orthopaedic Surgery, Aalborg University Hospital, Hobrovej 18-22, 9000, Aalborg, Denmark. Electronic address:

Introduction: Ischial tuberosity fractures and complications may be an under recognized diagnosis in adolescent athletes. Operative interventions differ and may include anchor re-fixations, resections and osteostimulating drilling and partial hamstring releases. This case report illustrates a novel and less invasive management of a non-union following a proximal ischial tuberosity avulsion. Read More

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November 2018
2 Reads

Reconstruction of chronic proximal hamstring avulsion injuries using ipsilateral distal hamstring tendons results in good clinical outcomes and patient satisfaction.

Knee Surg Sports Traumatol Arthrosc 2018 Nov 23. Epub 2018 Nov 23.

Perth Orthopaedic and Sports Medicine Centre, West Perth, Western Australia, 6005, Australia.

Purpose: To report outcomes following proximal hamstring reconstruction employing an ipsilateral distal hamstring tendon autograft, in patients with chronic proximal ruptures.

Methods: Six patients presenting with a chronic proximal hamstring avulsion and a medial time from injury of 11.0 months (range 7-18), confirmed via magnetic resonance imaging, underwent proximal hamstring repair using a free graft harvested from the ipsilateral distal hamstrings. Read More

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November 2018
3 Reads

BONE TUNNEL ENLARGEMENT WITH NON-METALLIC INTERFERENCE SCREWS IN ACL RECONSTRUCTION.

Acta Ortop Bras 2018 ;26(5):305-308

Associação Beneficíente Hospital Universitário (ABHU), Marília, SP, Brazil.

Objective: To compare the widening of bone tunnels between poly-etheretherketone (PEEK), absorbable polylactic acid DL (PLDL) and tricalcium phosphate (TCP) interference screws in anterior cruciate ligament (ACL) reconstruction.

Methods: Three groups of patients undergoing ACL reconstruction with at least 1 year of follow-up using the out-in drilling technique and hamstring as a graft were assessed. The patients were divided according to the type of interference screw used (PEEK, PLDL and TCP). Read More

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January 2018
2 Reads

Effects of preconditioning hamstring resistance exercises on repeated sprinting-induced muscle damage in female soccer players.

Biol Sport 2018 Sep 27;35(3):269-275. Epub 2018 Aug 27.

Department of Health, Exercise Science, and Recreation Management, The University of Mississippi, University, MS 38677, USA.

To examine whether adding preconditioning hamstring resistance exercises to a regular warm-up prior to a repeated sprinting exercise provides protection against the sprinting-induced muscle damage. Ten female soccer players (mean ± SD age: 21.3 ± 4. Read More

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September 2018
2 Reads

Posteromedial versus Anteromedial Hamstring Tendon Harvest for Anterior Cruciate Ligament Reconstruction: A Retrospective Comparison of Accidental Gracilis Harvests, Outcomes, and Operative Times.

J Knee Surg 2018 Nov 16. Epub 2018 Nov 16.

Department of Orthopaedic Surgery, MedStar Washington Hospital Center, Washington, District of Columbia.

Hamstring autografts are frequently harvested for anterior cruciate ligament reconstruction (ACLR), traditionally through the anteromedial (AM) approach. Recently, a posteromedial (PM) approach has been described. The primary purpose of this study was to compare rates of unintentional gracilis (Gr) harvest or premature tendon amputation with these approaches. Read More

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November 2018
1 Read

Biologically Enhanced Hamstring Tendon Transfer for Treatment of Acute Rupture of Posterior Tibialis Tendon in an Athlete: Case Report.

J Foot Ankle Surg 2018 Nov 15. Epub 2018 Nov 15.

Surgeon, Department of Orthopedic Surgery, Sports Medicine, Bellevue University Medical Center, Mansourieh, Lebanon.

We report the case of a 32-year-old basketball player who presented with an acute flatfoot deformity after performing a unipodal power jump. Rupture of the posterior tibial tendon within the foot was diagnosed and then treated by hamstring tendon transfer combined with application of autologous biologic preparations. The functional outcome at 18 months was good. Read More

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November 2018
1 Read

Gait Impairments in Patients without Lower Limb Hypertonia Early after Stroke are Related to Weakness of Paretic Knee Flexors.

Arch Phys Med Rehabil 2018 Nov 14. Epub 2018 Nov 14.

Center for Neuroscience and Neurological Recovery, Methodist Rehabilitation Center, Jackson, MS.

Objective: To describe gait characteristics of patients without clinical evidence of lower limb hypertonia within 2 months of stroke and explore the relationship between gait and residual motor function.

Design: Cohort study.

Setting: Motion analysis laboratory in a tertiary-care free-standing rehabilitation hospital. Read More

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November 2018
10 Reads

Return to Sport After Surgical Management of Proximal Hamstring Avulsions: A Systematic Review and Meta-analysis.

Clin J Sport Med 2018 Nov 15. Epub 2018 Nov 15.

Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada.

Objective: To assess the rates and timing of return to sport for the surgical management of proximal hamstring avulsions (PHAs).

Methods: Three databases, PubMed, MEDLINE, and EMBASE, were searched from database inception until October 7, 2017, by 2 reviewers independently and in duplicate. The inclusion criteria were studies reporting return to sport outcomes for surgical management of acute, chronic, complete, and partial PHA. Read More

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November 2018
2 Reads

[Minimally invasive proximal hamstring insertion repair].

Oper Orthop Traumatol 2018 Dec 15;30(6):419-434. Epub 2018 Nov 15.

Centrum für Muskuloskeletale Chirurgie, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Deutschland.

Objective: Minimally invasive endoscopic reconstruction of avulsion injuries of the proximal hamstring insertion to prevent persistent weakness and pain.

Indications: Fresh retracted 2‑ and 3‑tendon avulsion injuries of the proximal hamstring insertion. Unsuccessful conservative therapy of less retracted injuries. Read More

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December 2018
4 Reads

Real-time Electromyography-driven Functional Electrical Stimulation Cycling System for Chronic Stroke Rehabilitation.

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:2515-2518

Stroke-induced lower extremity dysfunction has become a severe medical problem nowadays and effective rehabilitation methods are in great demand. In this work, a new real-time Electromyography-driven Functional Electrical Stimulation (FES) cycling system was developed to help chronic stroke patients with lower limb rehabilitation training. To evaluate the feasibility and effectiveness of this system, 3 chronic stroke subjects were recruited and each received 20 training sessions where real-time Electromyography (EMG) was used to interact with the cycling system. Read More

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Empirical Based Modeling for the Assessment of Dynamic Knee Stability: Implications for Anterior Cruciate Ligament Injury Risk.

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:1676-1679

Anterior cruciate ligament (ACL) injuries are common sports injuries, costing the U.S. roughly $1 billion annually. Read More

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July 2018
2 Reads

Cycling-enhanced Knee Exoskeleton Using Planar Spiral Spring.

Conf Proc IEEE Eng Med Biol Soc 2018 Jul;2018:1-6

Reported in our previous study on passive cycling support, the energy cost of knee extension can be reduced using the energy stored from knee flexion by torsion spring. In the current study, the planar spiral spring is applied to attain the compact design of the cycling augmented knee exoskeleton (CAKE-2). The surface electromyography (EMG) results over the rectus femoris muscles of three healthy male participants performing constant power cycling on a trainer at 200 W and 225 W are analyzed in time-frequency via the continuous wavelet transform. Read More

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Knee sensorimotor control following anterior cruciate ligament reconstruction: A comparison between reconstruction techniques.

PLoS One 2018 15;13(11):e0205658. Epub 2018 Nov 15.

Clínica MEDS, Santiago, Chile.

The sensorimotor system helps to maintain functional joint stability during movement. After anterior cruciate ligament (ACL) injury and reconstruction, several sensorimotor deficits may arise, including altered proprioception and changes in neuromuscular control. It is still unknown whether the type of autograft used in the reconstruction may influence knee sensorimotor impairments. Read More

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November 2018
4 Reads

Nordic Exercise Should Not Be Used for Predictive Modeling of Hamstring Injuries.

Authors:
Li Li Mianfang Ruan

Med Sci Sports Exerc 2018 Dec;50(12):2614

Department of Health Sciences and Kinesiology Georgia Southern University Statesboro, GA College of Physical Education Ningbo University Ningbo, Zhejiang, PEOPLE'S REPUBLIC OF CHINA.

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December 2018
3 Reads
3.983 Impact Factor

The Influence of Hamstring Muscle Peak Torque and Rate Of Torque Development for Sprinting Performance in Football Players: A Cross-Sectional Study.

Int J Sports Physiol Perform 2018 Nov 14:1-27. Epub 2018 Nov 14.

1 Sports Orthopedic Research Center - Copenhagen (SORC-C), Department of Orthopedic Surgery, Copenhagen University Hospital, Amager-Hvidovre, Denmark.

Purpose:: This cross-sectional study aimed to investigate the association between hamstring muscle peak torque and rapid force capacity (rate of torque development: RTD) versus sprint performance in elite youth football players.

Methods:: Thirty elite academy youth football players (16.75 ± 1. Read More

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November 2018
3 Reads

Validity of an on-Field Readaptation Program Following a Hamstring Injury in Professional Soccer.

J Sport Rehabil 2018 Nov 14:1-20. Epub 2018 Nov 14.

b Camilo José Cela University. Faculty of Physical Activity and Sports Sciences Calle Castillo de Alarcón, Madrid, Spain.

Context:: Despite the presence of various injury prevention programs, the rate of hamstring injuries and re-injuries is increasing, warranting the need for a soccer-specific rehabilitation program.

Objective:: To develop and validate a new, functional on-field program for the rehabilitation and readaptation after a hamstring strain injury through a panel of experts; and determine its usefulness through the application of this program in professional soccer players.

Design:: A thirteen-item program was developed which was validated by a panel of experts and later applied to professional soccer players. Read More

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November 2018
14 Reads

Hold-relax and contract-relax stretching for hamstrings flexibility: A systematic review with meta-analysis.

Phys Ther Sport 2018 Nov 3;35:42-55. Epub 2018 Nov 3.

Department of Physical Therapy, University of the Philippines Manila, Manila, Philippines.

Objective: To synthesize evidence on the effects of hold-relax and contract-relax stretching (HR and CR) on hamstrings flexibility compared with no intervention and other stretching techniques.

Design: Electronic databases (PubMed, PEDro, Cochrane CENTRAL, Scopus, LILACS) were searched from inception until March 31, 2014 and updated until May 31, 2017. Randomized controlled trials involving HR and CR to improve hamstrings flexibility in adults (aged ≥18 years old) with or without a pathological condition were included. Read More

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November 2018
15 Reads

The significant effect of the medial hamstrings on dynamic knee stability.

Knee Surg Sports Traumatol Arthrosc 2018 Nov 12. Epub 2018 Nov 12.

Orthopaedic Biomechanics Laboratory, VA Long Beach Healthcare System, Long Beach, CA, USA.

Purpose: While hamstring autograft is a popular option for the general population, BTB autograft is still significantly more popular among professional athletes due to concerns of altering knee kinematics with hamstring harvest. This study seeks to quantify the contribution of the medial hamstrings to knee stability.

Methods: Valgus knee laxity, anterior tibial translation, and rotational motion were measured in eight fresh-frozen cadaveric knees after forces were applied on the tibia in each plane (coronal, sagittal, and axial). Read More

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November 2018
2 Reads

Fascia thickness, aging and flexibility: is there an association?

J Anat 2018 Nov 11. Epub 2018 Nov 11.

Department of Molecular Medicine, Institute of Human Anatomy, University of Padova, Padova, Italy.

The morphology of the connective tissue may play an important role in locomotor mechanics. Recent research has revealed an association between increased fascia thickness and reduced joint flexibility in patients with chronic pain. The present study aimed to examine the relationship of both factors in healthy individuals, additionally testing the hypothesis that older subjects display a higher fascia thickness. Read More

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November 2018
8 Reads

Tibial tunnel widening following anterior cruciate ligament reconstruction: A retrospective seven-year study evaluating the effects of initial graft tensioning and graft selection.

Knee 2018 Dec 7;25(6):1107-1114. Epub 2018 Nov 7.

Department of Orthopaedics, Warren Alpert Medical School of Brown University/Rhode Island Hospital, Providence, RI, United States of America; School of Engineering, Brown University, Providence, RI 02903, United States of America. Electronic address:

Purpose: To investigate tibial tunnel widening in ACL reconstruction patients over seven years to establish the effects of initial graft tension on tibial widening and clinical outcomes when using both patellar tendon (BTB) and hamstring tendon (HS) grafts.

Methods: Ninety patients, who were reconstructed with BTB or HS autografts, were randomized using one of two initial graft tension protocols; 1) tensioned to restore normal anteroposterior laxity ("low-tension"; n = 46) and 2) tensioned to over-constrain anteroposterior (AP) laxity by two millimeters ("high-tension"; n = 44). Seventy patients had post-surgical data with 45 available for review at seven years. Read More

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December 2018

Anterior cruciate ligament reconstruction is associated with greater tibial tunnel widening when using a bioabsorbable screw compared to an all-inside technique with suspensory fixation.

Knee Surg Sports Traumatol Arthrosc 2018 Nov 7. Epub 2018 Nov 7.

Orthopaedic Unit and Kirk Kilgour Sports Injury Center, S. Andrea Hospital, University of Rome "Sapienza", Via di Grottarossa 1035-1039, 00189, Rome, Italy.

Purpose: To compare clinical outcomes and tunnel widening following anterior cruciate ligament reconstruction (ACLR) performed with an all-inside technique (Group A) or with a bioabsorbable tibial screw and suspensory femoral fixation (Group B).

Methods: Tunnel widening was assessed using computed tomography (CT) and a previously validated analytical best fit cylinder technique at approximately 1-year following ACLR. Clinical follow-up comprised evaluation with IKDC, KSS, Tegner, Lysholm scores, and knee laxity assessment. Read More

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November 2018
4 Reads
2.840 Impact Factor

Second-look arthroscopy after anatomic anterior cruciate ligament reconstruction: Bone-patellar tendon-bone versus hamstring tendon graft.

J Orthop Sci 2018 Nov 3. Epub 2018 Nov 3.

Department of Orhtopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan.

Purpose: The purpose of this study was to compare the morphological and clinical outcomes between anatomic rectangular tunnel (ART) ACL reconstruction with a BTB graft and anatomic triple-bundle (ATB) ACL reconstruction with hamstring tendon (HST) grafts.

Methods: The anatomic ACL reconstructions were performed on 467 patients; 233 patients with ART technique and 234 with ATB procedure. ART procedure was predominantly indicated for athletes with higher motivation to return to sports and aggressiveness for muscle training. Read More

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November 2018
8 Reads

Prediction of quadriceps strength recovery after anterior cruciate ligament reconstruction with a hamstring autograft: Decision tree analysis.

J Orthop Sci 2018 Nov 2. Epub 2018 Nov 2.

Devision of Rehabilitation Medicine, Kobe University Hospital, Kobe, Japan.

Background: The wide variations in patient demographics and concomitant injuries make the prediction of which patients will regain strength quickly following anterior cruciate ligament (ACL) reconstruction challenging. This study aimed to identify the dominant factor affecting quadriceps strength recovery after ACL reconstruction with a hamstring tendon autograft and to construct a predictive model for quadriceps strength recovery using decision tree analysis.

Methods: Three hundred and eighty-six patients who underwent ACL reconstruction with a hamstring tendon autograft were included in this study. Read More

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November 2018
28 Reads

A tourniquet-less technique using saline epinephrine irrigation system in an arthroscopic ACL reconstruction in patient with history of popliteal artery ligation.

Int J Surg Case Rep 2018 Nov 1;53:157-162. Epub 2018 Nov 1.

Resident of Orthopaedic and Traumatology, Faculty of Medicine, Universitas Gadjah Mada, Indonesia; Department of Orthopaedic and Traumatology, Soeradji Tirtonegoro General Hospital Klaten, Indonesia; Department of Orthopaedic and Traumatology, Faculty of Medicine, Universitas Gadjah Mada - Sardjito General Hospital Yogyakarta, Indonesia.

Introduction: Pneumatic tourniquets use in surgery to create a bloodless surgical field. The majority of orthopaedic surgeon use a tourniquet inflated above systemic blood pressure during arthroscopic anterior cruciate ligament (ACL) reconstruction. A tourniquet use is not free of complications. Read More

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November 2018
6 Reads

Case report: ischial stress fracture non-union in a college football player.

J Hip Preserv Surg 2018 Aug 8;5(3):312-318. Epub 2018 Aug 8.

Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA.

Stress fractures are common injuries associated with repetitive high-impact activities, often in high-level athletes and military recruits. Although predominantly occurring in the lower extremities, stress fractures may occur wherever there is a sudden increase in frequency or intensity of activity, thereby overloading the yield point of the local bone environment. Ischial stress fractures are a rarely diagnosed cause of pain around the hip and pelvis. Read More

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August 2018
6 Reads

To Reverse Atrophy of Human Muscles in Complete SCI Lower Motor Neuron Denervation by Home-Based Functional Electrical Stimulation.

Adv Exp Med Biol 2018 ;1088:585-591

IRCCS Fondazione Ospedale San Camillo, Venezia-Lido, Italy.

After spinal cord injury (SCI), patients spend daily several hours in wheelchairs, sitting on their hamstring muscles. SCI causes muscle atrophy and wasting, which is especially severe after complete and permanent damage to lower motor neurons. A European Union (EU)-supported work demonstrates that electrical fields produced by large electrodes and purpose-developed electrical stimulators recover both quadriceps and hamstring muscles, producing a cushioning effect capable of benefitting SCI patients, even in the worst case of complete and long-term lower motor neuron denervation of leg muscles. Read More

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January 2018
5 Reads

Dedicated peri-operative pathway improved day case discharge rate for anterior cruciate ligament reconstructions.

Eur J Orthop Surg Traumatol 2018 Nov 2. Epub 2018 Nov 2.

Department of Trauma and Orthopaedics, Chesterfield Royal Hospital, Chesterfield Rd, Calow, Chesterfield, S44 5BL, UK.

The authors proposed that a well-developed peri-operative pathway for anterior cruciate ligament (ACL) reconstructions improve day case discharge rate with high patient satisfaction. A prospective observational study was undertaken at a district general hospital in UK between August 2017 and April 2018. A dedicated multidisciplinary peri-operative pathway was developed and introduced in January 2018. Read More

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November 2018

Potential hamstring injury blind spot: we need to raise awareness of proximal hamstring tendon avulsion injuries.

Br J Sports Med 2018 Nov 2. Epub 2018 Nov 2.

Department of Orthopaedic Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.

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November 2018
1 Read

Nearly 90% participation in sports activity 12 years after non-surgical management for anterior cruciate ligament injury relates to physical outcome measures.

Knee Surg Sports Traumatol Arthrosc 2018 Nov 1. Epub 2018 Nov 1.

Private Practice, Nambour, Australia.

Purpose: Traditionally reconstructive surgery is recommended for patients planning to return to sport (RTS), especially to pivoting sports after anterior cruciate (ACL) rupture. Recent trends focus on delaying or avoiding surgery as some studies have found similar rates of RTS following both surgical and conservative management. This study aimed to establish long-term RTS levels in ACL-ruptured individuals treated conservatively, and to investigate the relationship between outcome measures and RTS, in particular, pivoting sports. Read More

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November 2018
2 Reads

Gait biomechanics in individuals with patellar tendon and hamstring tendon anterior cruciate ligament reconstruction grafts.

J Biomech 2018 Oct 25. Epub 2018 Oct 25.

Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, USA; Program in Human Movement Science, University of North Carolina at Chapel Hill, USA. Electronic address:

Anterior cruciate ligament reconstruction (ACLR) restores joint stability following ACL injury but does not attenuate the heightened risk of developing knee osteoarthritis. Additionally, patellar tendon (PT) grafts incur a greater risk of osteoarthritis compared to hamstring grafts (HT). Aberrant gait biomechanics, including greater loading rates (i. Read More

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October 2018
1 Read

Anterior cruciate ligament reconstruction without the use of a tourniquet.

Ann R Coll Surg Engl 2018 Nov 1:1-3. Epub 2018 Nov 1.

Department of Orthopaedic Surgery, King Hamad University Hospital , Al Sayh , Bahrain.

Introduction: Anterior cruciate ligament tears are a common ligamentous knee injury and are usually managed with arthroscopic reconstruction surgery using a tourniquet. The employment of a tourniquet in the management of an anterior cruciate ligament tear has been a debatable topic for some time. Here, we discuss our technique in the reconstruction of anterior cruciate ligament tears without the use of a tourniquet. Read More

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November 2018
3 Reads

Muscular co-contraction is related to varus thrust in patients with knee osteoarthritis.

Clin Biomech (Bristol, Avon) 2018 Dec 23;60:164-169. Epub 2018 Oct 23.

Centre for Interdisciplinary Research in Rehabilitation, Constance Lethbridge Rehabilitation Centre, Montreal, Canada; School of Physical and Occupational Therapy, McGill University, Montreal, Canada. Electronic address:

Background: Patients with knee osteoarthritis often present with varus thrust and muscular co-contraction during gait. It is unclear if these adaptations are related. The objective was to examine the relationship between muscle co-contraction and varus thrust during gait in patients with knee osteoarthritis and to determine if these relationships are modulated by disease severity or history of knee ligament rupture. Read More

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December 2018
10 Reads

Minimally Invasive Quadriceps Tendon Single-Bundle, Arthroscopic, Anatomic Anterior Cruciate Ligament Reconstruction With Rectangular Bone Tunnels.

Arthrosc Tech 2018 Oct 24;7(10):e1045-e1056. Epub 2018 Sep 24.

Gelenkpunkt-Sports and Joint Surgery, Innsbruck, Austria.

Many surgeons use quadriceps tendon (QT) graft for anterior cruciate ligament (ACL) revision surgery; however, despite excellent clinical results, the QT has not achieved universal acceptance for primary ACL reconstruction. One of the reasons for this may be that the QT is technically demanding to harvest and the scar from open harvesting techniques is less cosmetically favorable than that from hamstring tendon techniques. Recent evidence has suggested that broad flat QT grafts may more closely mimic native ACL "ribbon-like" morphology than hamstring tendon grafts. Read More

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October 2018
2 Reads

Endoscopic Harvest of Autogenous Gracilis and Semitendinosus Tendons.

Arthrosc Tech 2018 Oct 17;7(10):e1019-e1024. Epub 2018 Sep 17.

Department of Orthopaedic Surgery, Kitasato University School of Medicine, Kanagawa, Japan.

The hamstring autograft is one of the most popular grafts for anterior cruciate ligament (ACL) reconstruction. Although many techniques for arthroscopic ACL reconstruction using hamstring autografts have been invented, hamstring harvest techniques have not been focused. Hamstrings are harvested using an open technique that requires a 2- to 5-cm skin incision. Read More

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October 2018
6 Reads

Anatomic Double-Bundle Anterior Cruciate Ligament Reconstruction with Hamstring Tendon Autograft through Single Femoral Tunnel and Single Branched Tibial Tunnel.

Arthrosc Tech 2018 Oct 10;7(10):e989-e998. Epub 2018 Sep 10.

Knee Surgery-Arthroscopy and Sports Injuries Unit, Orthopedic Department, Mansoura University, Mansoura City, Egypt.

Conventional single-bundle anterior cruciate ligament (ACL) reconstruction cannot improve the rotational stability of the knee. Traditional double-bundle ACL reconstruction requires is demanding, complex, time- and implant consuming, and associated with a high incidence of complications. Double-bundle ACL reconstruction using a free quadriceps tendon autograft through 3 independent tunnels provides some advantage, but the antegrade graft passage, tibial tunnel confluence, and graft site morbidity represent disadvantages. Read More

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October 2018
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