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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

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.

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

Am Fam Physician 2018 Nov;98(10):570-576

West Virginia University School of Medicine-Eastern Campus, Harpers Ferry, WV, USA.

Braces and splints can immobilize and protect joints, reduce pain, decrease swelling, and facilitate healing of acute injuries. They are also used for injury prevention and chronic pain reduction, and to alter the function of a joint. The medial unloading (valgus) knee brace is an option for patients with medial knee osteoarthritis, but evidence of long-term benefit is limited. 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

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

J Knee Surg 2018 Oct 3. Epub 2018 Oct 3.

Department of Orthopaedic Surgery, Anderson Orthopaedic Clinic, Alexandria, Virginia.

Partial knee arthroplasty is a procedure with long-term successful outcomes. However, there are several potential complications including retained cement fragments, bearing dislocation, infection, component loosening, medial collateral ligament injury, and overcorrection, leading to progressive arthritis. Periprosthetic fracture is an uncommon complication, with multiple reports showing an incidence of less than 1%. 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

Arthrosc Tech 2018 Sep 13;7(9):e921-e926. Epub 2018 Aug 13.

Department of Orthopaedics, New York Presbyterian, Columbia University Medical Center, New York, New York, U.S.A.

The medial collateral ligament (MCL) is the most commonly injured ligament of the knee. Given its extra-articular location, the MCL has great healing capacity such that the mainstay of treatment for most injuries remains conservative management. However, certain injury patterns place patients and athletes at risk of residual valgus laxity, which may require delayed surgical care and prolonged time out from sports. 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

EFORT Open Rev 2018 Jul 2;3(7):398-407. Epub 2018 Jul 2.

Department of Orthopaedic Surgery, 'La Paz' University Hospital-IdiPaz, Spain.

Tears of the medial collateral ligament (MCL) are the most common knee ligament injury.Incomplete tears (grade I, II) and isolated tears (grade III) of the MCL without valgus instability can be treated without surgery, with early functional rehabilitation.Failure of non-surgical treatment can result in debilitating, persistent medial instability, secondary dysfunction of the anterior cruciate ligament, weakness, and osteoarthritis. Read More

J Knee Surg 2018 Sep 18. Epub 2018 Sep 18.

Department of Orthopaedics, Rothman Institute, Philadelphia, Pennsylvania.

Superficial medial collateral ligament (MCL) injury is an occasional intraoperative complication during total knee arthroplasty (TKA) that can lead to failure. Although previous studies have recommended complex repair or conversion to a constrained implant, the authors evaluated results of superficial distal MCL reapproximation using bone staples. Records of 31 patients who underwent staple reapproximation for superficial MCL avulsion from the tibial attachment during primary TKA from 2005 to 2015 were reviewed. Read More

J Am Acad Orthop Surg Glob Res Rev 2017 Aug 14;1(5):e019. Epub 2017 Aug 14.

Richmond Bone and Joint Clinic Surgical, Richmond, TX (Dr. Motamedi); Virginia Tech Carilion School of Medicine and Research Institute, Roanoke (Mr. Gowd, Mr. Nazemi, and Dr. Behrend); the Department of Orthopedics, Carilion Clinic, Roanoke (Mr. Gowd, Dr. Nazemi, and Dr. Behrend); and St. Joseph Health and Mission Hospital, Laguna Beach, CA (Dr. Gardner).

Introduction: We studied injury to the medial collateral ligament (MCL) in National Collegiate Athletic Association (NCAA) Division I football players, their incidence, magnitude of injury, distribution by position, and missed time, which has not previously been described in a consecutive series.

Methods: The knee injuries sustained in 163 consecutive NCAA Division I collegiate football players at our institution were evaluated over a span of 6 years.

Results: The incidence of MCL injuries with any knee injury was 29% (47 of 163). Read More

J Knee Surg 2018 Sep 11. Epub 2018 Sep 11.

Department of Orthopaedics, Tangshan People's Hospital, Tangshan, China.

The ipsilateral peroneus longus tendon (PLT) was utilized as an autograft for anterior cruciate ligament (ACL) reconstruction of patients with acute ACL rupture and grade III medial collateral ligament (MCL) injury. We investigated the efficacy and safety of this alternative autograft compared with autologous hamstring tendon (HT). Biomechanical testing of the graft options was performed and compared with the native ACL. 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

Arthrosc Tech 2018 Aug 16;7(8):e839-e843. Epub 2018 Jul 16.

Orthopaedic Trauma Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, Weill Medical College of Cornell University, New York, NY, U.S.A.

Knee dislocations often result in a severe multiligament injured knee (MLIK) with complex instability. Multiligament reconstruction can successfully restore knee stability and is commonly recommended, although surgical morbidity is induced by graft harvesting and tunnel drilling, and convergence of multiple tunnels can complicate the surgery. Therefore, as an alternative, primary repair of knee ligaments is currently reconsidered. Read More

Orthopedics 2018 Sep 10;41(5):e738-e740. Epub 2018 Aug 10.

Medial collateral ligament reconstruction is often performed in knees with multiligamentous injury, and numerous techniques have been previously described. A novel method of internally bracing and reconstructing the medial collateral ligament with a semitendinosus autograft is described. This provides several advantages, including reproducible isometric graft placement, optimized fixation strength, and internal bracing. Read More

Orthop J Sports Med 2018 Jul 30;6(7):2325967118787182. Epub 2018 Jul 30.

The Steadman Clinic, Vail, Colorado, USA.

Background: The medial collateral ligament (MCL) is one of the most commonly injured structures in the knee, especially in young athletes. The impact of MCL injury on National Football League (NFL) performance in elite collegiate athletes has not yet been described in the literature.

Purpose: We aim to (1) describe the prevalence and severity of MCL injuries in NFL Combine participants, (2) detail injury management, and (3) analyze the impact of MCL injury on NFL performance in terms of draft position, games played, games started, and snap percentage. 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

J Med Ultrasound 2017 Jul-Sep;25(3):167-172. Epub 2017 Aug 17.

University of California-Irvine, Dept of Emergency Medicine, USA.

Background: Ultrasound has become an increasingly utilized tool for the imaging of the musculoskeletal system, especially for imaging the components of the knee. Even though MRI is touted as being the golden standard for identifying knee pathologies, the use of ultrasound has gained popularity in this field given its ability for rapid diagnosis. This study aims to investigate the efficacy of point-of-care ultrasound (POCUS) to diagnose injuries to the medial knee compartment when compared to magnetic resonance imaging (MRI). Read More

Int J Sports Phys Ther 2018 Jun;13(3):520-525

Orthopaedic Surgeon, Andrews Sports Medicine & Orthopaedic Center, Birmingham, AL.

Background: Medial collateral ligament (MCL) injuries are one of the most commonly treated knee pathologies in sports medicine. The MCL serves as the primary restraint to valgus force. The large majority of these injuries do not require surgical intervention. 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

Orthop J Sports Med 2018 Jun 12;6(6):2325967118777825. Epub 2018 Jun 12.

Steadman Philippon Research Institute, Vail, Colorado, USA.

Background: Vascular-derived progenitor and endothelial cell populations (CD31, CD34, CD146) are capable of multipotent differentiation at the site of injured ligamentous tissue to aid in the intrinsic healing response. Proximal ulnar collateral ligament (UCL) tears have been reported to have better healing capability when compared with distal UCL tears.

Purpose: To compare the vascular composition of the proximal and distal insertions of the anterior bundle of the UCL of the elbow via known markers of endothelial and vascular-derived progenitor cells (CD31, CD34, CD146). Read More

Cureus 2018 Mar 1;10(3):e2251. Epub 2018 Mar 1.

Orthopaedics, Evangelisches Krankenhaus.

Medial collateral ligament (MCL) injuries are the most common knee ligament injuries. Magnetic resonance imaging (MRI) is the investigation of choice for detecting such injuries. We report two cases of acute grade 3 MCL tears in young adults in which the injury was suspected clinically and was later confirmed by surgical exploration. 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

Am J Sports Med 2018 Jul 4;46(9):2113-2121. Epub 2018 Jun 4.

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

Background: Anterior cruciate ligament (ACL) injuries are catastrophic events that affect athletic careers and lead to long-term degenerative knee changes. As injuries are believed to occur within the first 50 milliseconds after initial contact during a rapid deceleration task, impact simulators that rapidly deliver impulse loads to cadaveric specimens have been developed. However, no impactor has reproducibly and reliably created ACL injures in a distribution that mimics clinical observation. 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

Arthroscopy 2018 Aug 19;34(8):2446-2453. Epub 2018 May 19.

The Steadman Clinic, Vail, Colorado, U.S.A.; Steadman Philippon Research Institute, Vail, Colorado, U.S.A.. Electronic address:

Purpose: To evaluate whether players with a history of an anterior cruciate ligament reconstruction (ACLR) before the National Football League (NFL) Combine played or started fewer games and/or participated in fewer eligible snaps compared with NFL Combine participants without a history of knee injury or surgery.

Methods: We performed a retrospective review of all players who participated in the NFL Combine between 2009 and 2015 and who had a history of an ACLR. NFL Combine participants were included if they had a previous ACLR or combined anterior cruciate ligament (ACL) injury and nonoperatively managed medial collateral ligament injury. Read More

J Orthop Trauma 2018 Aug;32(8):e320-e326

Department of Orthopaedic Surgery, Cairns Hospital, Cairns, Australia.

Background: Combined rupture of the anterior cruciate ligament (ACL) and patellar tendon (PT) is a rare injury pattern. Currently, little evidence exists to help guide management decisions for these patients.

Methods: A systematic literature search was conducted using PubMed (MEDLINE) and Scopus (EMBASE and MEDLINE) for all articles reporting on combined rupture of the ACL and PT. Read More

Orthop J Sports Med 2018 Apr 23;6(4):2325967118768446. Epub 2018 Apr 23.

Northwestern University, Chicago, Illinois, USA.

Background: The chop block, a football maneuver in which an offensive player blocks an opponent around the thigh while another offensive player engages the same opponent above the waist, was declared illegal by the National Football League (NFL) before the 2016-2017 season. Chop blocks have been hypothesized to be associated with medial collateral ligament and anterior cruciate ligament injury, especially in offensive/defensive linemen.

Purpose: To quantify the impact that the chop-block rule change had on the incidence of knee injuries to defensive players in the NFL over 4 seasons (2014-2018). 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

Orthopedics 2018 May 9;41(3):e442-e444. Epub 2018 May 9.

Displaced parrot beak flap tears in the meniscotibial recess are complex tears of the meniscus that begin as central radial tears and progressively extend toward the periphery, creating a detached fragment. These tears have not been described in the literature, but the authors have described them as the "meniscal comma sign" based on their appearance on magnetic resonance imaging. Displaced fragments are clinically significant because of the pain and mechanical symptoms they can cause as a result of tenting of the deep medial collateral ligament. Read More

Orthop J Sports Med 2018 Apr 12;6(4):2325967118765215. Epub 2018 Apr 12.

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

Background: Female patients sustain noncontact knee ligament injuries at a greater rate compared with their male counterparts. The cause of these differences in the injury rate and the movements that load the ligaments until failure are still under dispute in the literature.

Purpose/hypotheses: This study was designed to determine differences in anterior cruciate ligament (ACL) and medial collateral ligament (MCL) strains between male and female cadaveric specimens during a simulated athletic task. 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

Orthop J Sports Med 2018 Apr 9;6(4):2325967118765978. Epub 2018 Apr 9.

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

Background: Limb asymmetries, as determined through in vivo biomechanical measures, are known risk factors for anterior cruciate ligament (ACL) injury. Previous cadaveric studies have shown a lack of significant differences in ligament strain between contralateral lower extremities when identical kinematics were simulated on specimens. Recent methodological developments have applied in vivo knee kinetics to exert landing forces on cadaveric lower extremities to mimic ACL injury events, but it is unknown whether contralateral limbs fail in a consistent manner during impact simulator testing. Read More

Am J Sports Med 2018 Jun 16;46(7):1551-1558. Epub 2018 Apr 16.

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

Background: There is insufficient knowledge about the way that concomitant injuries affect the short-term likelihood of a return to a knee-strenuous sport after anterior cruciate ligament (ACL) reconstruction. Hypotheses/Purpose: The purpose was to study whether patient characteristics, concomitant injuries, and graft choice at primary ACL reconstruction can predict return to sport (RTS) 1 year after surgery. The hypotheses were that younger age at the time of ACL reconstruction would positively affect RTS, while the presence of concomitant injuries would negatively affect RTS 1 year after surgery. 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

Clin J Sport Med 2018 Mar 23. Epub 2018 Mar 23.

Kramer Orthopedics, Newport Beach, CA.

Background: Literature regarding surfing injuries is scarce and most studies report a high number of minor injuries. Recent literature suggests that musculoskeletal injuries are more common than previously reported. In the mid 2000s, competitive surfing has seen an increase in aerial maneuvers, as they have become more highly rewarded by the judging panel, which may be contributing to a change in injury patterns. Read More

J Back Musculoskelet Rehabil 2018 ;31(4):589-591

Private Rheumatologist, Antalya, Turkey.

Background: Medial collateral ligament (MCL) bursitis has been described as a distended and inflamed bursa between the superficial and deep portions of the MCL. It is a rare but important cause of medial knee pain.

Case Description: A 65-year-old woman with knee osteoarthritis (OA) presented with severe pain and swelling in her left knee. 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

J Anat 2018 Jun 2;232(6):943-955. Epub 2018 Mar 2.

Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK.

Tendons and ligaments play key roles in the musculoskeletal system in both man and animals. Both tissues can undergo traumatic injury, age-related degeneration and chronic disease, causing discomfort, pain and increased susceptibility to wider degenerative joint disease. To date, tendon and ligament ultrastructural biology is relatively under-studied in healthy, non-diseased tissues. Read More

Arch Orthop Trauma Surg 2018 Jun 22;138(6):771-776. Epub 2018 Feb 22.

Department of Orthopaedic Surgery, Hanyang University Hospital, Seoul, South Korea.

Introduction: To evaluate the prevalence of medial collateral ligament (MCL) injury of the knee among ankle-fracture patients and to determine the risk factors associated with MCL injury in this patient group.

Materials And Methods: 303 patients (303 affected ankles) who underwent surgical treatment for an ankle fracture were assessed. Supination versus pronation injury, Danis-Weber classification, age, sex, body mass index (BMI), limb dominance, and mechanism of injury were reviewed to identify factors related to MCL injury. Read More