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Knee Surg Sports Traumatol Arthrosc 2019 Feb 14. Epub 2019 Feb 14.

Sporthopaedicum, Straubing and Regensburg, Bahnhofplatz, 27, 94315, Straubing, Germany.

Purpose: Most elbow dislocations can be treated conservatively, with surgery indicated in special circumstances. Surgical options, apart from fracture fixation, range from repair or reconstruction of the damaged ligaments to static external fixation, usually entailing either a long period of immobilization followed by carefully monitored initiation of movement or dynamic external fixation. In general, no consensus regarding surgical treatment has been reached. Read More

Orthop J Sports Med 2019 Jan 24;7(1):2325967118822450. Epub 2019 Jan 24.

Centre Orthopedic Santy, FIFA Medical Center of Excellence, Ramsay-Générale de Santé, Hôpital Privé Jean Mermoz, Lyon, France.

Background: Combined partial lateral collateral and complete anterolateral ligament (PLCCALL) injuries are a specific injury pattern seen in Brazilian jiu-jitsu (BJJ) because of the knee varus-flexion mechanism that frequently occurs during grappling.

Purpose/hypothesis: The purpose of this study was to evaluate the incidence of this injury pattern in a series of BJJ athletes with an acute knee injury and to evaluate clinical and functional outcomes after nonoperative management at a minimum follow-up of 1 year. Our hypotheses were that PLCCALL injuries are common in BJJ and that nonoperative treatment is associated with excellent clinical outcomes and return to the preinjury level of sport. Read More

SAGE Open Med Case Rep 2019 11;7:2050313X18823102. Epub 2019 Jan 11.

Department of Orthopedic Surgery, Jichi Medical University, Shimotsuke, Japan.

Knee dislocation with concomitant multiligament injury is a rare and devastating injury. We report the successful repair of a rare case of open knee dislocation with concomitant multiligament injury and patellar tendon rupture of an 18-year-old male due to a motorcycle accident. The patient presented with an open wound running parallel to the knee joint line and patellar tendon rupture with full exposure of the cartilage of the distal femur. Read More

Ann Biomed Eng 2019 Jan 17. Epub 2019 Jan 17.

McCaig Institute for Bone & Joint Health, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.

Little effort has been directed towards the consequence of an injury on joint angular velocity. We hypothesized that the magnitude of knee joint angular velocity would be decreased after injury. Four injury groups were investigated in an ovine model: (1) anterior cruciate ligament (ACL) and medial collateral ligament (MCL) transection (ACL/MCL Tx) (n = 5), (2) lateral meniscectomy (Mx) (n = 5), (3) partial ACL transection (p-ACL Tx) (n = 5), and (4) partial-ACL and MCL transection (p-ACL/MCL Tx) (n = 5). Read More

Knee 2019 Jan 8. Epub 2019 Jan 8.

Grupo de Joelho, Instituto de Ortopedia e Traumatologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.

Background: To report the functional outcomes and complications from reconstructing the knee posterolateral complex (PLC), associated with one-stage opening-wedge tibial valgus osteotomy, and discuss the technical feasibility of this procedure.

Methods: Five patients with chronic PLC injuries and varus deviation of the mechanical axis, associated with central pivot injuries or not, underwent medial opening-wedge high tibial osteotomy combined with PLC reconstruction. The lateral collateral ligament, popliteal tendon, and popliteofibular ligament were reconstructed using a single femoral tunnel. Read More

Joints 2018 Sep 2;6(3):153-156. Epub 2018 Nov 2.

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

 The purpose of this study was to describe the anatomy of the anterolateral ligament (ALL) of the knee by the use of 1.5 Tesla (T) magnetic resonance imaging (MRI) in a series of young patients without knee injuries.  Subjects aged 18 years or older without an anterior cruciate ligament injury, as confirmed on MRI, were included. Read More

Med Eng Phys 2019 Feb 14;64:80-85. Epub 2018 Dec 14.

Medical Device Research Institute, College of Science and Engineering, Flinders University, Tonsley, SA, Australia. Electronic address:

Personalised information of knee mechanics is increasingly used for guiding knee reconstruction surgery. We explored use of uniaxial knee laxity tests mimicking Lachman and Pivot-shift tests for quantifying 3D knee compliance in healthy and injured knees. Two healthy knee specimens (males, 60 and 88 years of age) were tested. Read More

J Clin Orthop Trauma 2018 Oct-Dec;9(4):312-316. Epub 2017 Oct 7.

Department of Radiology, University of Miami Miller School of Medicine, Jackson Memorial Hospital, Miami, FL, United States.

Maintaining anterolateral rotational stability of the knee requires a complex set of structures, most notably the anterior cruciate ligament. However, lateral knee structures such as the anterolateral ligament (ALL) also play an important role. There has been controversy over the role the ALL plays in an ACL deficient knee to maintain rotational stability. Read More

Phys Ther Sport 2018 Nov 24;34:227-237. Epub 2018 Oct 24.

Faculty of Sport, Health and Applied Sciences, St Mary's University, Waldegrave Road, Twickenham, TW1 4SX, UK. Electronic address:

Objective: Strength training acute programme variables (APVs) can impact tibiofemoral joint injury outcomes. Exercise descriptors (EDs; e.g. Read More

Knee Surg Sports Traumatol Arthrosc 2018 Oct 29. Epub 2018 Oct 29.

Human Anatomy and Embryology Unit, Experimental Pathology and Therapeutics Department, University of Barcelona, Barcelona, Spain.

Purpose: Ankle lateral collateral ligament complex has been the focus of multiple studies. However, there are no specific descriptions of how these ligaments are connected to each other as part of the same complex. The aim of this study was to describe in detail the components of the lateral collateral ligament complex-ATFL and CFL-and determine its anatomical relationships. Read More

Knee Surg Sports Traumatol Arthrosc 2018 Oct 29. Epub 2018 Oct 29.

Department of Orthopaedics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.

Purpose: To determine how concomitant medial collateral ligament (MCL) and lateral collateral ligament (LCL) injuries affect outcome after anterior cruciate ligament (ACL) reconstruction.

Methods: Patients aged > 15 years who were registered in the Swedish National Knee Ligament Registry for primary ACL reconstruction between 2005 and 2016 were eligible for inclusion. Patients with a concomitant MCL or LCL injury were stratified according to collateral ligament treatment (non-surgical, repair or reconstruction), and one isolated ACL reconstruction group was created. Read More

Knee Surg Sports Traumatol Arthrosc 2018 Oct 25. Epub 2018 Oct 25.

Department of Orthopedic Surgery, Korea University Guro Hospital, Korea University College of Medicine, 148 Gurodong-ro, Guro-gu, Seoul, 08308, Republic of Korea.

Purpose: This study aimed to evaluate whether supine lateral radiographs (SLRs) could replace stress radiographs for diagnosing chronic posterior cruciate ligament (PCL) injuries and identifying combined PCL injuries (defined as PCL injury with medial collateral ligament or posterolateral ligament complex injury).

Methods: In this retrospective study, both SLRs at 30° and 90° of knee flexion (30/90 SLRs) and Telos stress radiographs of patients with chronic PCL injuries (n = 38) and only 30/90 SLRs of healthy controls (n = 84) were taken. Injured-to-normal differences on 30/90 SLRs and stress radiographs were assessed. Read More

Orthop J Sports Med 2018 Oct 11;6(10):2325967118799970. Epub 2018 Oct 11.

Centre Orthopédique Santy, Lyon, France.

Background: The structure and function of the anterolateral aspect of the knee have been significantly debated, with renewed interest in this topic since the description of the anterolateral ligament (ALL).

Purpose: To define and describe the distinct structures of the lateral knee and to correlate the macroscopic and histologic anatomic features.

Study Design: Descriptive laboratory study. Read More

Radiol Clin North Am 2018 Nov 17;56(6):935-951. Epub 2018 Sep 17.

Department of Radiology, University of Washington, 1959 Northeast Pacific Street, Seattle, WA 98195-7117, USA.

The posterolateral corner (PLC) of the knee is composed of numerous ligamentous and tendinous structures that provide restraint and stability. This anatomy is complex, and at times controversial. We present a comprehensive review of the normal anatomy and pathology of the PLC. Read More

Res Sports Med 2018 Oct 14:1-12. Epub 2018 Oct 14.

a Department of Exercise and Sport Science , University of North Carolina , Chapel Hill , NC , USA.

Research on knee internal derangement (KID) injuries in high school girls' lacrosse is limited, yet needed to identify sport-specific risk factors. This study describes the epidemiology of KID injuries in United States high school girls' lacrosse during the 2008/09-2016/17 academic years. Athletic trainers (ATs) reported injury and athlete-exposure (AE) data to the High School Reporting Information Online (RIO) surveillance system. Read More

Int Orthop 2019 Jan 1;43(1):223-228. Epub 2018 Oct 1.

"La Sapienza" University of Rome, Sant'Andrea Hospital, Traumatology Sports Center "Kilk Kilgour", Via Di Grottarossa, 1035-1039, Rome, RM, Italy.

Aim Of The Study: To describe the surgical findings of the anterolateral complex in patients with the "unhappy triad" lesion of the knee.

Method: One hundred and twenty-five consecutive patients presenting with acute anterior cruciate ligament (ACL) tears were selected for this study. Only cases, evaluated with a valgus stress test under fluoroscopy, with a medial opening more than 5 mm of the medial collateral ligament (MCL) were included in the study (11 patients). Read More

Orthop J Sports Med 2018 Sep 19;6(9):2325967118794367. Epub 2018 Sep 19.

Department of Orthopaedics and Spine Surgery, Ganga Hospital, Coimbatore, India.

Background: The knee dislocation-3 (KD3) injury pattern is the most common form of multiligamentous injury. Medial KD3 (KD3-M) and lateral KD3 (KD3-L) are 2 anatomically different varieties of this injury.

Purpose: To compare the surgical outcomes of KD3-M and KD3-L multiligamentous knee injury patterns and to determine the factors that could influence the outcomes after single-stage reconstruction. Read More

J Knee Surg 2018 Sep 6. Epub 2018 Sep 6.

Department of Orthopaedic Surgery, Hanyang University Seoul Hospital, Seongdong-gu, Seoul, Republic of Korea.

The purpose of this study was to determine and compare the prevalence of anterolateral ligament abnormality and associated injuries among patients with complete and partial anterior cruciate ligament tears. In addition, the prevalence of associated injuries with anterolateral ligament abnormality was further analyzed. Of the 158 patients diagnosed with acute anterior cruciate ligament tear, 82 patients were diagnosed with acute complete anterior cruciate ligament confirmed by magnetic resonance imaging (MRI) and arthroscopic procedures (Group C), and 74 patients were diagnosed with acute partial anterior cruciate ligament tears confirmed by MRI (Group P). Read More

Biomed Res Int 2018 29;2018:5353820. Epub 2018 Jul 29.

Department of Pediatric Orthopaedic Surgery, Children's Hospital, Hamburg-Altona, Germany.

Background: The influence of increasing lateral plateau widening on the frequency of meniscal and ligamentous lesions in lateral tibial plateau fractures has been examined in very few studies using plain radiographs. Because the amount of this parameter cannot be measured accurately on plain radiographs, the purpose of this survey was to look for a possible correlation between the extent of lateral plateau widening, as measured on multidetector CT (MDCT) scans, and different soft-tissue injuries determined from magnetic resonance imaging (MRI).

Materials And Methods: 55 patients with a lateral tibial plateau fracture were included in this retrospective case series. Read More

J Knee Surg 2018 Aug 1. Epub 2018 Aug 1.

Department of Orthopaedic Surgery, National University Hospital Sports Centre, National University Health System, Singapore.

Females are well known to have a two to nine times increase in relative risk of anterior cruciate ligament (ACL) rupture as compared with males. However, there is limited literature available regarding the rates of associated intra-articular and extra-articular injuries associated with ACL ruptures. The purpose of this study was to investigate the gender differences in intra-articular and extra-articular injuries associated with ACL ruptures in an acute setting. Read More

Arthroscopy 2018 Sep 20;34(9):2728-2738. Epub 2018 Jul 20.

Midwest Orthopaedics at Rush, Rush University Medical Center, Chicago, Illinois, U.S.A.. Electronic address:

Purpose: The purpose of this study is to systematically review the literature to evaluate the reliability, or the ability of a repeated measurement to yield consistent results, and validity of ultrasound (US) and magnetic resonance imaging (MRI) at evaluating anatomy and pathology of the anterolateral ligament of the knee (ALL) in the setting of anterior cruciate ligament (ACL) injuries. Furthermore, the incidence and association of ALL injury with the pivot-shift examination, and other structural injuries, will be reviewed for additional clinical relevance.

Methods: Adhering to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, 2 reviewers independently searched the Medline, Embase, Cochrane, EBSCOhost, OVID, and Web of Science databases for all studies related to imaging of the ALL. Read More

Am J Sports Med 2018 Aug 18;46(10):2341-2354. Epub 2018 Jul 18.

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

Background: The double-bundle reconstruction technique was developed to resemble the properties of the native anterior cruciate ligament (ACL) more closely than the conventional single-bundle technique. The clinical benefit of the operative procedure is controversial, and there is a need for studies with a focus on patient-reported outcomes (PROs).

Study Design: Randomized controlled trial; Level of evidence, 1. Read More

Injury 2018 Aug 4;49(8):1602-1606. Epub 2018 Jun 4.

Department of Orthopedic Surgery, Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea. Electronic address:

A femoral shaft fracture is usually a high-energy injury and, thus, is likely to be accompanied by an injury of adjacent joints such as a knee ligament injury. However, these associated injuries are often neglected because of severe pain and deformity. The purpose of the current study is to evaluate the incidence, type and risk factors of ipsilateral knee injuries associated with femoral shaft fractures. Read More

Arthrosc Tech 2018 May 30;7(5):e557-e567. Epub 2018 Apr 30.

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

An untreated posterolateral corner (PLC) injury in patients with a torn anterior cruciate ligament (ACL) may be a leading cause of ACL reconstruction failure. Combined ACL and PLC reconstruction is discussed in few studies in the literature. Femoral tunnel intersection in combined reconstruction has been reported to be high. Read More

J Knee Surg 2018 May 31. Epub 2018 May 31.

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

Arthrofibrosis can be a devastating complication after ligamentous knee reconstruction. Beyond early range of motion (ROM), manipulation under anesthesia (MUA) and arthroscopic lysis of adhesions (LOAs) are the most frequently employed interventions for the condition. There is a paucity of data regarding predictive factors of arthrofibrosis requiring MUA and LOA, and even less data regarding changes in validated patient-reported outcome measures following the procedure. Read More

Biomed Res Int 2018 23;2018:7189714. Epub 2018 Apr 23.

Department of Orthopaedic Surgery, University Hospital RWTH Aachen, Aachen, Germany.

Purpose: The purpose of this study was to evaluate the approach of using an electromagnetic tracking (EMT) system for measuring the effects of stepwise, simulated knee injuries on patellofemoral (PF) and tibiofemoral (TF) kinematics.

Methods: Three cadaver knees were placed in a motion rig. EMT sensors were mounted on the patella, the medial/lateral femoral epicondyles, the tibial condyle, and the tibial tuberosity (TT). Read More

Knee Surg Sports Traumatol Arthrosc 2018 May 30. Epub 2018 May 30.

Centre Albert Trillat, Orthopaedic Surgery, Croix-Rousse Hospital, Lyon, France.

Purpose: Soft tissue balancing is of central importance to outcome following total knee arthroplasty (TKA). However, there are lack of data analysing the effect of tibial bone cut thickness on valgus laxity. A cadaveric study was undertaken to assess the biomechanical consequences of tibial resection depth on through range knee joint valgus stability. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2017 Aug;31(8):922-925

No.2 Department of Knee Injury, Luoyang Orthopedic-Traumatological Hospital, Henan Orthopedic Hospital, Luoyang Henan, 471000,

Objective: To evaluate the short-term effectiveness of a modified Laprade technique in the treatment of lateral multi-ligament injuries of knee by anatomical reconstruction of posterolateral complex (PLC) and anterior lateral ligament (ALL).

Methods: Between June 2013 and July 2015, 13 cases of lateral multi-ligament injuries of knee were treated. There were 9 males and 4 females with an average age of 38 years (range, 23-49 years). Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2017 Dec;31(12):1452-1455

Department of Sports Medicine and Arthroscopic Surgery, Huashan Hospital, Fudan University, Shanghai, 200040,

Objective: To make further exploration of the structure characteristics of anterolateral ligament (ALL) and provide clinical reference for diagnosis and treatment of ALL injury, especially for ALL reconstruction through anatomical study of ALL in a Chinese population.

Methods: Sixteen cadaveric knees, including 8 left knees and 8 right knees with sex ratio of 1∶1 and a mean age of 73.5 years (range, 57-84 years), were dissected to reveal the ALL through a standard approach. Read More

Arthroscopy 2018 Jun;34(6):1898-1899

Vail, Colorado.

Anterolateral ligament injuries with knee dislocations appear to be very common. In particular, those that occur with fibular (lateral) collateral ligament injuries are very frequent. Although the majority of injuries in this magnetic resonance imaging study appear to be at the proximal attachment of the anterolateral ligament, caution is advised because there is still no clear agreement as to the anatomic attachment site of the anterolateral ligament on the femur. Read More

J Biomech 2018 Jun 16;75:67-76. Epub 2018 May 16.

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; Biomedical Engineering Graduate Program, University of Calgary, Calgary, AB, Canada. Electronic address:

The relations between kinematic abnormalities and post traumatic osteoarthritis have not yet been clearly elucidated. This study was conducted to determine the finite helical axes parameters and the tibiofemoral translation vector in the knee joints of two surgically induced injury sheep models: anterior cruciate ligament and medial collateral ligament transection (ACL/MCL Tx) (n = 5) and lateral meniscectomy (n = 5). We hypothesized that morphological damage in the experimental joints would be correlated to alterations in these kinematic variables. Read More

Orthop J Sports Med 2018 May 2;6(5):2325967118770170. Epub 2018 May 2.

The Steadman Clinic, Vail, Colorado, USA.

Background: Fibular collateral ligament (FCL) tears are challenging to diagnose. Left untreated, FCL tears lead to residual ligament instability and increased joint loading on the medial compartment of the knee. Additionally, when a concomitant anterior cruciate ligament (ACL) reconstruction is performed, increased forces on reconstruction grafts occur, which may lead to premature graft failure. Read More

BMJ Case Rep 2018 May 15;2018. Epub 2018 May 15.

Department of Trauma & Orthopaedics, Princess Royal University Hospital, Orpington, UK.

We present a rare case of isolated traumatic pure ligamentous rupture of the lateral collateral ligament of the knee in an adolescent high-level footballer managed non-operatively with a good functional outcome and return to sport in 4 months. Read More

Biomed Eng Online 2018 Apr 17;17(1):42. Epub 2018 Apr 17.

Centre for Biomedical Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India.

Background: OpenSim musculoskeletal models provide an accurate simulation environment that eases limitations of in vivo and in vitro studies. In this work, a biomechanical knee model was formulated with femoral articular cartilages and menisci along with 25 connective tissue bundles representing ligaments and capsules. The strain patterns of the connective tissues in the presence of femoral articular cartilage and menisci in the OpenSim knee model was probed in a first of its kind study. Read More

Knee 2018 Jun 11;25(3):360-366. Epub 2018 Apr 11.

Department of Pathology, University Hospital of Saint Etienne, Saint Etienne, France.

Background: The aim was to determine whether the anterolateral ligament (ALL) had a histological structure that defined it as a real ligament.

Methods: Histological examination of 30 ALL samples taken from fresh-frozen knees were performed. The ALL femoral insertion and its relationship with the lateral collateral ligament (LCL) were studied and the tibial insertion and its relationship with articular cartilage of the tibial joint surface were analyzed. Read More

Sports Health 2018 Nov/Dec;10(6):495-499. Epub 2018 Apr 11.

Background:: Return to play (RTP) of National Football League (NFL) athletes after isolated anterior cruciate ligament (ACL) tears has been reported. However, no studies have reported on RTP of NFL athletes after multiligament knee injuries.

Hypotheses:: NFL athletes with multiligament knee injuries have lower RTP rates and longer recoveries than athletes with isolated ACL tears. Read More

Arthrosc Tech 2018 Feb 1;7(2):e147-e164. Epub 2018 Feb 1.

Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia, U.S.A.

The management of multiligament knee injury is a complex process starting with the adequate identification of the injury. A detailed physical and radiographic examination with a thorough understanding of knee anatomy is crucial to assess all damaged structures: anterior cruciate ligament, posterior cruciate ligament, posteromedial corner including the medial collateral ligament, and posterolateral corner including the lateral collateral ligament. Several surgical techniques have been developed throughout the years to adequately address these ligament insufficiencies. Read More

Zhongguo Gu Shang 2018 Feb;31(2):155-159

Department of Orthopaedics, Ningbo Fourth Hospital, Xiangshan 315700, Zhejiang, China.

Objective: To investigate the characteristics and clinical treatment of avulsion fracture of the lateral edge of tibial plateau(segond fracture) in knee joint injuries.

Methods: From January 2011 and December 2015, 29 patients with Segond fracture were treated with minimally invasive arthroscopy technology in intra-articular injuries combined with double anchor nail fixation in avulsion fracture of the lateral edge of tibial plateau, including 17 males and 12 females with an average age of 41 years old ranging from 27 to 62 years old. Among them, there were 20 cases of anterior cruciate ligament rupture (ACL rupture) involving the anterior cruciate ligament tibial eminence avulsion fracture included, 3 cases of posterior cruciate ligament rupture (PCL rupture), 1 case of ACL rupture combined with PCL rupture, 3 cases of medial collateral ligament tear, and 2 cases combined fractures of tibial plateau (1 case of the medial platform fractures and 1 cases of lateral fracture). Read More

Arthroscopy 2018 Jun 3;34(6):1891-1897. Epub 2018 Mar 3.

Division of Orthopaedic Surgery, McGill University Health Centre, Montreal, Quebec, Canada.

Purpose: The purpose of this study is to describe the prevalence and associated factors of anterolateral ligament (ALL) injury in knee dislocation (KD).

Methods: A retrospective review of charts and radiological images was done for patients who underwent multiligamentous knee reconstruction surgery for KD in the authors' institution from May 2008 to December 2016. The inclusion criteria were both genders, skeletally mature, and first dislocation. Read More

Zhongguo Gu Shang 2017 Nov;30(11):1039-1042

The First Department of Orthopaedics, the First People's Hospital of Wenling, Wenling 317500, Zhejiang, China.

Objective: To explore the operating procedures and therapeutic effects of medial patellofemoral ligament reconstruction with Tightrope(Arthrex, FL, USA) button fixation at lateral femoral cortex.

Methods: From May 2014 to July 2016, 9 patients with traumatic patellar dislocation were treated. There were 5 males and 4 females, ranging in age from 16 to 47 years old, with an average of 23. Read More

Zhongguo Gu Shang 2017 Nov;30(11):986-990

Department of Orthopaedics, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, Zhejiang, China;

Objective: To study clinical effects of triad operation including reconstruction of medial patellofemoral ligament, release of lateral retinaculum, Fulkerson tibial tubercle osteotomy, medial transfer and advancement under arthroscopy for the treatment of habitual dislocation of patella.

Methods: From March 2010 to May 2016, 35 patients with habitual patellar dislocation were treated with the triad operation, including 14 males, 21 females, ranging in age from 18 to 38 years old, with an average of 25.8 years old. Read More

Zhongguo Gu Shang 2017 Nov;30(11):982-985

Department of Orthopaedics, the Second Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi, China;

Up to now, surgical treatment of recurrent lateral patellar dislocation mainly includes: medial patellofemoral ligament reconstruction, tibial tubercle osteotomy, trochleoplasty, lateral retinacular release, derotation osteotomy and so on . Clinical reports show that: the use of a single or combined with several methods have achieved ideal short to mid-term clinical outcomes. However, there is no consolidate criterion concerning the choices of different kinds of surgical ways for the treatment of individual recurrent lateral patellar dislocation. Read More

Orthopedics 2018 Mar 19;41(2):e268-e276. Epub 2018 Feb 19.

Proximal tibia fractures are associated with concurrent collateral ligament injuries. Failure to recognize these injuries may lead to chronic knee instability. The purpose of this study was to identify risk factors for concurrent collateral ligament injuries with proximal tibia fractures and their association with inpatient outcomes. Read More

J Am Acad Orthop Surg 2018 Mar;26(6):e120-e127

From the Department of Orthopaedics, University of Cincinnati, Cincinnati, OH.

The lateral collateral ligament is the primary varus stabilizer of the tibiofemoral joint. Diagnosing an injury to this ligament can be challenging in the setting of multiligamentous trauma; however, failure to recognize these injuries can result in instability of the knee and unsatisfactory outcomes after cruciate ligament reconstruction. Recent literature exploring the anatomy and biomechanics of the lateral collateral ligament has enhanced our understanding and improved diagnosis and management of these injuries. Read More

Clin Biomech (Bristol, Avon) 2018 Feb 2;52:109-116. Epub 2018 Feb 2.

Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA; Department of Biomedical Engineering and Physiology, Mayo Clinic, Rochester, MN, USA; Sports Medicine Center, Mayo Clinic, Rochester, MN, USA; Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA.

Background: Following anterior cruciate ligament injury and subsequent reconstruction transverse plane tibiofemoral rotation becomes underconstrained and overconstrained, respectively. Conflicting reports exist on how rotations influence loading at the knee. This investigation aimed to determine the mechanical effects of internal and external tibial rotation offsets on knee kinematics and ligament strains during in vitro simulations of in vivo recorded kinematics. Read More

Knee Surg Sports Traumatol Arthrosc 2018 Oct 5;26(10):2966-2977. Epub 2018 Feb 5.

Department of Orthopaedics, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.

Purpose: A better understanding of patient characteristics and the way common concomitant injuries affect the recovery of muscle function after surgery should help providers to treat patients with anterior cruciate ligament (ACL) injuries. The aim of this study was to determine whether patient characteristics, concomitant injuries and graft choice at ACL reconstruction were associated with symmetrical knee muscle function at one year. The hypothesis was that the presence of concomitant injuries would negatively influence the opportunity to achieve symmetrical knee function at the one-year follow-up. Read More

Zhongguo Gu Shang 2017 Apr;30(4):364-367

Department of Rehabilitation, Guangdong No.2 People's Hospital, Guangzhou 510317, Guangdong, China.

Objective: To study the contribution of medial or lateral stabilizer to the stability of the patella, to explore the function and effect of releasing the LPR clinically and to provide a biomechanical basis for the clinical treatment of patellar instability(PI).

Methods: The quadriceps femoris of 6 fresh human cadaver knees were loaded to simulate a normal condition of muscle strength. First the loading force was measured and recorded, which subluxated the patella with the different degrees of knee flexion. Read More

Zhongguo Gu Shang 2017 Mar;30(3):282-286

Department of Orthopaedics, the Second Hospital Affiliated to Shanxi Medical Univeristy, Taiyuan 030001, Shanxi, China.

Patients who suffer from the recurrent patellar dislocation mainly show the recurrent dislocation of patellar, giving way, most patients have the history of trauma or dysplasia of keen joint. Traditional therapies of recurrent patellar dislocation include medical retinaculum placation, lateral retinaculum release, tibial tubercle osteotomy, femoral trochleoplasty etc. In recent years, with the development of anatomical and biomechanical researches on medial patellofemoral ligament(MPFL), more and more experts focus on the role of MPFL played in preventing the patellar dislocation. Read More

J Knee Surg 2018 Feb 10;31(2):130-140. Epub 2018 Jan 10.

Department of Radiology, University of Michigan, Ann Arbor, Michigan.

Ligamentous structures of the knee are numerous and complex, including the anterior and posterior cruciate ligaments, medial and lateral collateral ligaments, ligaments of the posteromedial and posterolateral corners, and the anterolateral ligament. Clinical assessment after a knee injury is paramount and can direct both the clinician's choice of imaging study and the radiologist's interpretation. Imaging is crucial in that it provides additional information for diagnosis, management, and surgical planning. Read More