1,341 results match your criteria Medial Collateral Knee Ligament Injury


Open knee dislocation with a patellar tendon rupture: Result of staged surgical repair.

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

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http://dx.doi.org/10.1177/2050313X18823102DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6349979PMC
January 2019
3 Reads

Alterations in Joint Angular Velocity Following Traumatic Knee Injury in Ovine Models.

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

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http://dx.doi.org/10.1007/s10439-019-02203-6DOI Listing
January 2019
6 Reads

Posterolateral reconstruction combined with one-stage tibial valgus osteotomy: Technical considerations and functional results.

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

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http://dx.doi.org/10.1016/j.knee.2018.12.001DOI Listing
January 2019
2 Reads

Reporting of acute programme variables and exercise descriptors in rehabilitation strength training for tibiofemoral joint soft tissue injury: A systematic review.

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

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https://linkinghub.elsevier.com/retrieve/pii/S1466853X183014
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http://dx.doi.org/10.1016/j.ptsp.2018.10.012DOI Listing
November 2018
8 Reads

Increased risk of ACL revision with non-surgical treatment of a concomitant medial collateral ligament injury: a study on 19,457 patients from the Swedish National Knee Ligament Registry.

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

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http://link.springer.com/10.1007/s00167-018-5237-3
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http://dx.doi.org/10.1007/s00167-018-5237-3DOI Listing
October 2018
12 Reads

Braces and Splints for Common Musculoskeletal Conditions.

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

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November 2018
20 Reads

Supine lateral radiographs at 90° of knee flexion have a similar diagnostic accuracy for chronic posterior cruciate ligament injuries as stress radiographs.

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

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http://dx.doi.org/10.1007/s00167-018-5228-4DOI Listing
October 2018
2 Reads

Epidemiology of knee internal derangement injuries in United States high school girls' lacrosse, 2008/09-2016/17 academic years.

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

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http://dx.doi.org/10.1080/15438627.2018.1533471DOI Listing
October 2018
2 Reads

Periprosthetic Fracture following Partial Knee Arthroplasty.

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

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http://www.thieme-connect.de/DOI/DOI?10.1055/s-0038-1672204
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http://dx.doi.org/10.1055/s-0038-1672204DOI Listing
October 2018
5 Reads

The unhappy triad of the knee re-revisited.

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

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http://dx.doi.org/10.1007/s00264-018-4181-7DOI Listing
January 2019
4 Reads

Distal Knee Medial Collateral Ligament Repair With Suture Augmentation.

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

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http://dx.doi.org/10.1016/j.eats.2018.05.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6153306PMC
September 2018
3 Reads

Comparison of KD3-M and KD3-L Multiligamentous Knee Injuries and Analysis of Predictive Factors That Influence the Outcomes of Single-Stage Reconstruction in KD3 Injuries.

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

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http://dx.doi.org/10.1177/2325967118794367DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6146330PMC
September 2018
3 Reads

Isolated medial collateral ligament tears: An update on management.

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

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http://dx.doi.org/10.1302/2058-5241.3.170035DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6129956PMC
July 2018
2 Reads

Managing Superficial Distal Medial Collateral Ligament Insufficiency in Primary Total Knee Arthroplasty Using Bone Staples.

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

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http://dx.doi.org/10.1055/s-0038-1669954DOI Listing
September 2018
3 Reads

Incidence, Positional Distribution, Severity, and Time Missed in Medial Collateral Ligament Injuries of the Knee in NCAA Division I Football Athletes.

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

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http://dx.doi.org/10.5435/JAAOSGlobal-D-17-00019DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6132294PMC
August 2017
5 Reads

Peroneus Longus Tendon Autograft is a Safe and Effective Alternative for Anterior Cruciate Ligament Reconstruction.

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

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http://dx.doi.org/10.1055/s-0038-1669951DOI Listing
September 2018
7 Reads

Magnetic Resonance Imaging-Based Prevalence of Anterolateral Ligament Abnormalities and Associated Injuries in Knees with Acute Anterior Cruciate Ligament Injury.

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

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http://dx.doi.org/10.1055/s-0038-1669449DOI Listing
September 2018
25 Reads

Multiligament Repair With Suture Augmentation in a Knee Dislocation With Medial-Sided Injury.

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

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https://linkinghub.elsevier.com/retrieve/pii/S22126287183007
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http://dx.doi.org/10.1016/j.eats.2018.04.006DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6112193PMC
August 2018
8 Reads

A Novel Medial Collateral Ligament Reconstruction Technique Using Internally Braced Semitendinosus Autograft.

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

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http://dx.doi.org/10.3928/01477447-20180806-06DOI Listing
September 2018
2 Reads

Medial Collateral Ligament Injuries Identified at the National Football League Scouting Combine: Assessment of Epidemiological Characteristics, Imaging Findings, and Initial Career Performance.

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

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http://dx.doi.org/10.1177/2325967118787182DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6066829PMC
July 2018
6 Reads

Gender Differences in Intra-articular and Extra-articular Injuries Associated with Acute Anterior Cruciate Ligament Ruptures.

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

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http://dx.doi.org/10.1055/s-0038-1666828DOI Listing
August 2018
4 Reads

Comparing Point-of-care-ultrasound (POCUS) to MRI for the Diagnosis of Medial Compartment Knee Injuries.

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

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http://dx.doi.org/10.1016/j.jmu.2017.06.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6029305PMC
August 2017
11 Reads

THE USE OF SERIAL PLATELET RICH PLASMA INJECTIONS WITH EARLY REHABILITATION TO EXPEDITE GRADE III MEDIAL COLLATERAL LIGAMENT INJURY IN A PROFESSIONAL ATHLETE: A CASE REPORT.

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

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6044600PMC
June 2018
9 Reads

No Difference in the KOOS Quality of Life Subscore Between Anatomic Double-Bundle and Anatomic Single-Bundle Anterior Cruciate Ligament Reconstruction of the Knee: A Prospective Randomized Controlled Trial With 2 Years' Follow-up.

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

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http://dx.doi.org/10.1177/0363546518782454DOI Listing
August 2018
10 Reads

Evaluation of Endothelial and Vascular-Derived Progenitor Cell Populations in the Proximal and Distal UCL of the Elbow: A Comparative Study.

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

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http://dx.doi.org/10.1177/2325967118777825DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6024543PMC
June 2018
6 Reads

Grade III Distal Medial Collateral Ligament Tear Missed by Magnetic Resonance Imaging: A Report of Two Cases.

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

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http://dx.doi.org/10.7759/cureus.2251DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5930969PMC
March 2018
3 Reads

Incidence and risk factors of knee injuries associated with ipsilateral femoral shaft fractures: A multicentre retrospective analysis of 429 femoral shaft injuries.

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

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http://dx.doi.org/10.1016/j.injury.2018.06.006DOI Listing
August 2018
5 Reads

Combined Anterior Cruciate Ligament and Posterolateral Corner Reconstruction by Hamstring Tendon Autografts Through a Single Femoral Tunnel by Graft-to-Graft Suspension and Fixation.

Authors:
Naser M Selim

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

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http://dx.doi.org/10.1016/j.eats.2018.01.010DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5984450PMC
May 2018
2 Reads

Validation of Noncontact Anterior Cruciate Ligament Tears Produced by a Mechanical Impact Simulator Against the Clinical Presentation of Injury.

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

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http://dx.doi.org/10.1177/0363546518776621DOI Listing
July 2018
5 Reads
1 Citation
4.362 Impact Factor

Impact of Simulated Knee Injuries on the Patellofemoral and Tibiofemoral Kinematics Investigated with an Electromagnetic Tracking Approach: A Cadaver Study.

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

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http://dx.doi.org/10.1155/2018/7189714DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5937613PMC
October 2018
3 Reads

Increased valgus laxity in flexion with greater tibial resection depth following total knee arthroplasty.

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

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http://dx.doi.org/10.1007/s00167-018-4988-1DOI Listing
May 2018
2 Reads

A History of Anterior Cruciate Ligament Reconstruction at the National Football League Combine Results in Inferior Early National Football League Career Participation.

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

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https://linkinghub.elsevier.com/retrieve/pii/S07498063183023
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http://dx.doi.org/10.1016/j.arthro.2018.03.018DOI Listing
August 2018
9 Reads

Management of Simultaneous Patellar Tendon and Anterior Cruciate Ligament Ruptures-A Systematic Review of Available Literature.

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

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http://dx.doi.org/10.1097/BOT.0000000000001219DOI Listing
August 2018
7 Reads

The NFL's Chop-Block Rule Change: Does It Prevent Knee Injuries in Defensive Players?

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

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http://dx.doi.org/10.1177/2325967118768446DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5954335PMC
April 2018
4 Reads

Correlation between translational and rotational kinematic abnormalities and osteoarthritis-like damage in two in vivo sheep injury models.

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

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http://dx.doi.org/10.1016/j.jbiomech.2018.04.046DOI Listing
June 2018
2 Reads

Fibular Collateral Ligament: Varus Stress Radiographic Analysis Using 3 Different Clinical Techniques.

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

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http://dx.doi.org/10.1177/2325967118770170DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5946641PMC
May 2018
5 Reads

Non-operative management of an isolated lateral collateral ligament injury in an adolescent patient and review of the literature.

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

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http://dx.doi.org/10.1136/bcr-2017-223478DOI Listing
May 2018
6 Reads

The Meniscal Comma Sign: Characterization and Treatment of a Displaced Fragment in the Meniscotibial Recess.

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

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http://dx.doi.org/10.3928/01477447-20180501-01DOI Listing
May 2018
25 Reads

Sex-Based Differences of Medial Collateral Ligament and Anterior Cruciate Ligament Strains With Cadaveric Impact Simulations.

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

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http://dx.doi.org/10.1177/2325967118765215DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5900820PMC
April 2018
5 Reads

An extended OpenSim knee model for analysis of strains of connective tissues.

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

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http://dx.doi.org/10.1186/s12938-018-0474-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5905155PMC
April 2018
5 Reads

Ligament Strain Response Between Lower Extremity Contralateral Pairs During In Vitro Landing Simulation.

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

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http://dx.doi.org/10.1177/2325967118765978DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5894909PMC
April 2018
6 Reads

Low 1-Year Return-to-Sport Rate After Anterior Cruciate Ligament Reconstruction Regardless of Patient and Surgical Factors: A Prospective Cohort Study of 272 Patients.

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

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http://journals.sagepub.com/doi/10.1177/0363546518765120
Publisher Site
http://dx.doi.org/10.1177/0363546518765120DOI Listing
June 2018
9 Reads

Return to Play After Multiligament Knee Injuries in National Football League Athletes.

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

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http://dx.doi.org/10.1177/1941738118768812DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6204640PMC
October 2018
3 Reads

Orthopedic Injuries in Professional Surfers: A Retrospective Study at a Single Orthopedic Center.

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

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http://dx.doi.org/10.1097/JSM.0000000000000596DOI Listing
March 2018
4 Reads

Medial collateral ligament bursitis in a patient with knee osteoarthritis.

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

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http://dx.doi.org/10.3233/BMR-169741DOI Listing
November 2018
5 Reads

Surgical Management of the Multiple-Ligament Knee Injury.

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

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http://dx.doi.org/10.1016/j.eats.2017.08.079DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5851650PMC
February 2018
25 Reads

[Analysis of the characteristics and clinical diagnosis and treatment of avulsion fracture of the lateral edge of tibial plateau].

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

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http://dx.doi.org/10.3969/j.issn.1003-0034.2018.02.012DOI Listing
February 2018
19 Reads

Variations in internal structure, composition and protein distribution between intra- and extra-articular knee ligaments and tendons.

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

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http://dx.doi.org/10.1111/joa.12802DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5978954PMC
June 2018
6 Reads

A higher association of medial collateral ligament injury of the knee in pronation injuries of the ankle.

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

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http://dx.doi.org/10.1007/s00402-018-2907-zDOI Listing
June 2018
15 Reads