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medial collateral ligament

Shota Oda, Masashi Izumi, Koji Aso, Masahiko Ikeuchi
BACKGROUND: Accumulating evidence indicates that knee pain gives rise to sensory and motor alterations, however, whether different profile of knee pain causes different alterations has not been investigated. The purpose of this experimental study is to clarify characteristics of medial and lateral knee pain and its potential for modulating sensory and motor function in humans. METHODS: Fourteen healthy men were included. Medial knee pain (MP) was induced by injection of hypertonic saline (0...
June 23, 2018: European Journal of Pain: EJP
Adrien Lons, Florian Boureau, Elodie Drumez, Gilles Pasquier, Sophie Putman
INTRODUCTION: Arthroscopic meniscectomy and medial meniscal repair are frequent procedures, liable to be complicated by iatrogenic cartilage lesions, especially in tight knee. Medial collateral ligament pie-crusting was developed to counter this, but, although the technique is employed, its impact on medial laxity has not been precisely determined. We therefore conducted a prospective observational study to compare radiographic laxity preoperatively versus 6 weeks following pie-crusting...
June 19, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
Vivek Tiwari, Dickey R Marak, Maximilian Muellner, Christoph Resinger, Thomas Muellner
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. However, the MRI failed to pick up the exact nature of injury. This report signifies the importance of an appropriate clinical examination for MCL injuries and stresses that decision-making for treatment should be based on the clinical examination rather than the MRI...
March 1, 2018: Curēus
Seong-Eun Byun, Hyun-Chul Shon, Jai Hyung Park, Hyoung Keun Oh, Young-Ho Cho, Ji Wan Kim, Jae-Ang Sim
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. A total of 429 femoral shaft fractures were included in this study from January 2010 to September 2015. There were 320 males and 109 females, with mean age of 40...
June 4, 2018: Injury
Nicholas A Trasolini, George F Rick Hatch
Treatment of posterior cruciate ligament injuries remains controversial, particularly in the case of partial or incomplete tears in the context of a multiple ligament-injured knee. Suture augmentation, or internal bracing, has been shown in other ligament and tendon repairs or reconstructions to provide stable biomechanics and facilitate early return to activity. In the knee, suture augmentation has previously been used for the treatment of medial collateral ligament tears and in the support of anterior cruciate ligament reconstructions...
March 2018: Arthroscopy Techniques
Alan M Hirahara, Gordon Mackay, Wyatt J Andersen
Management of medial collateral ligament (MCL) injuries usually consists of time and conservative management; however, patients are typically immobilized and need extensive time to return to sport. Although the MCL has been shown to have the ability to heal given time, surgical management is still sometimes needed to provide stability to the knee. Operative techniques vary in methodology, but are typically highly invasive and technically demanding. In the event of multiligamentous or severe injuries, reinforcing the MCL with an ultrahigh-strength, 2-mm-wide suture tape allows for early functional rehabilitation, permitting the native MCL tissue to heal and avoiding late reconstructions...
March 2018: Arthroscopy Techniques
Naser M Selim
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. Short grafts may render combined reconstruction undoable. This Technical Note describes a technique that allows a combined ACL and PLC reconstruction. The ACL graft is a 4-stranded hamstring tendon graft from 1 limb...
May 2018: Arthroscopy Techniques
Christoph Offerhaus, Maurice Balke, Justin W Arner, Volker Musahl, Jürgen Höher
The posterior oblique ligament (POL) is the main component of the posteromedial corner (PMC) of the knee and plays a crucial role in acting as a secondary restraint against translation, rotation, and valgus forces. Injuries to the PMC often occur in association with acute or chronic deficiency of the anterior cruciate ligament and may result in anteromedial rotatory instability. A surgical technique for treatment of acute and chronic injuries of the posteromedial structures was first established by Hughston in 1973...
May 2018: Arthroscopy Techniques
Nishith Shah, Reetadyuti Mukhopadhyay, Rohan Vakta, Jaymin Bhatt
It was in the early 1900s that anterior cruciate ligament (ACL) repair was first described with its resurgence in the mid-1900s. It however failed to gain popularity because of unsatisfactory early outcomes as a result of poorly selected patients. We describe a suture pullout technique of acute ACL repair in a carefully selected cohort of patients. Healing capabilities similar to that of the proximal medial collateral ligament have been shown in the proximal ACL avulsions. Adding microfracture of the lateral wall of the notch further enhances the healing environment by countering the synovial fluid environment...
May 2018: Arthroscopy Techniques
Nathaniel A Bates, Nathan D Schilaty, Christopher V Nagelli, Aaron J Krych, Timothy E Hewett
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...
June 1, 2018: American Journal of Sports Medicine
Björn Rath, Malte Asseln, Marcel Betsch, Andreas Prescher, Markus Tingart, Jörg Eschweiler
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). After determining the motion of an intact knee, three injuries were simulated and the resulting bony motion was tracked...
2018: BioMed Research International
E Sappey-Marinier, N White, R Gaillard, L Cheze, E Servien, P Neyret, S Lustig
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. We aimed to establish a maximum tibial resection depth, beyond which medial collateral ligament balancing becomes challenging, and a constrained implant should be considered...
May 30, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Timothy K Mwangi, Ian Berke, Eduardo H Nieves, Richard D Bell, Samuel B Adams, Lori A Setton
OBJECTIVE: Determine the effects of arthritis on the trans-synovial clearance of small and large model compounds following local delivery to the knee joint in a rat model. DESIGN: Intra-articular delivery was studied in rat knee joints in an osteoarthritis model of knee joint instability (medial collateral ligament and meniscus transection model or MMT). Fluorescently-labeled 10 kDa or 500 kDa dextran was injected in the arthritic or unoperated control (naive) joints 3 weeks after surgical destabilization, and the temporal clearance pattern was evaluated via in vivo regional fluorescence imaging, dextran concentrations in plasma and draining lymph nodes, and by quantification of fluorescence in histological synovium sections...
May 26, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
Nengji Long, Shukun He, Shizhou Wu, Fuguo Huang
Objective: To summarize the research progress in posteromedial rotatory instability (PMRI) of the elbow joint. Methods: The recent researches about the management of PMRI of the elbow joint from the aspects of pathological anatomy, biomechanics, diagnosis, and therapy were analyzed and summarized. Results: The most important factors related to PMRI of the elbow joint are lateral collateral ligament complex (LCLC) lesion, posterior bundle of the medial collateral ligament complex (MCLC) lesion, and anteromedial coronoid fracture...
April 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
M Jordan, M Thomas, F Elser, W Fischer
The medial collateral ligament (MCL) complex is characterized by a complex anatomical arrangement of the individual ligamentous structures including three joints and the spring ligament complex. Biomechanically it serves as the main stabilizing structure in the ankle region against rotational and pronating forces. Lesions in the region of the MCL complex are more frequent than previously thought and like lesions of the spring ligament complex can lead to pain and instability. A thorough examination including the patient history with possible injury mechanisms often yields valuable information on the diagnosis of injuries to the MCL or spring ligament complex...
May 25, 2018: Der Unfallchirurg
Matthew T Provencher, James P Bradley, Jorge Chahla, Anthony Sanchez, Brendin R Beaulieu-Jones, Justin W Arner, Nicholas I Kennedy, George Sanchez, Mitchell I Kennedy, Gilbert Moatshe, Mark E Cinque, Robert F LaPrade
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...
May 19, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
Hayden P Baker, Antonios Varelas, Kevin Shi, Michael A Terry, Vehniah K Tjong
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)...
April 2018: Orthopaedic Journal of Sports Medicine
Robert A Jack, Kyle R Sochacki, Hannah A Morehouse, Patrick C McCulloch, David M Lintner, Joshua D Harris
Background: Several studies have analyzed the most cited articles in shoulder, elbow, pediatrics, and foot and ankle surgery. However, no study has analyzed the quality of the most cited articles in elbow medial ulnar collateral ligament (UCL) surgery. Purpose: To (1) identify the top 50 most cited articles related to UCL surgery, (2) determine whether there was a correlation between the top cited articles and level of evidence, and (3) determine whether there was a correlation between study methodological quality and the top cited articles...
April 2018: Orthopaedic Journal of Sports Medicine
Palaniswamy Aravindh, Tianyi Wu, Chloe Xiaoyun Chan, Keng Lin Wong, Lingaraj Krishna
Background: Anterior cruciate ligament (ACL) injuries are frequently associated with bone bruises, and their presence may be associated with concomitant intra- and extra-articular injuries. Purpose: To investigate the prevalence and pattern of distribution of bone bruises in patients with acute ACL tears from noncontact sports trauma and their association with specific intra- and extra-articular injuries. Study Design: Cross-sectional study; Level of evidence, 3...
April 2018: Orthopaedic Journal of Sports Medicine
Mehdi Shekarforoush, Jillian E Beveridge, David A Hart, Cyril B Frank, Nigel G Shrive
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...
May 16, 2018: Journal of Biomechanics
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