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Meniscal tear

Jorge E Gómez, Daren D Molina, Shaylon D Rettig, J Herman Kan
Background: Clinical characteristics of uncomplicated bone bruises (ie, not associated with a ligament rupture, meniscal tear, or fracture of the knee) in young athletes have scarcely been reported. Purpose: To identify mechanisms of injury, characterize bone bruise patterns, and identify clinical factors relating to recovery in young patients suffering uncomplicated bone bruises about the knee. Study Design: Case series; Level of evidence, 4...
July 2018: Orthopaedic Journal of Sports Medicine
Dhong Won Lee, Sung Gyu Moon, Ra Kim Na, Min Seok Chang, Jin Goo Kim
BACKGROUND: An event of painful popping is a highly predictive clinical sign of medial meniscal posterior root tears (MMPRTs) in middle-aged to older patients. There are lacks of studies about the prevalence of a painful popping event and the condition of the medial compartment at the time of popping event in MMPRTs. HYPOTHESIS: We hypothesized that most of MMPRTs with a single painful popping event would show pre-existed pathologic medial meniscal extrusion (MME) and articular cartilage degeneration, and larger contact area of medial femoral condyle to medial tibial plateau could affect the MME...
August 11, 2018: Orthopaedics & Traumatology, Surgery & Research: OTSR
Stine Hangaard, Henrik Gudbergsen, Cecilie L Daugaard, Henning Bliddal, Janus Damm Nybing, Miika T Nieminen, Victor Casula, Carl-Johan Tiderius, Mikael Boesen
BACKGROUND: Early cartilage changes in knee osteoarthritis (OA) can be assessed by both intravenous (i.v.) and intra-articular (i.a.) delayed gadolinium-enhanced MRI of cartilage (dGEMRIC). PURPOSE: To examine the relationship between i.a. dGEMRIC and delayed gadolinium-enhanced MRI of menisci (dGEMRIM), and to investigate if the approach can be used to assess the morphological degeneration of menisci in obese patients with knee OA. STUDY TYPE: Cross-sectional...
August 13, 2018: Journal of Magnetic Resonance Imaging: JMRI
Søren T Skou, Jonas B Thorlund
OBJECTIVE: To describe the development and feasibility of an exercise therapy program for treatment of young adults (18-40 years of age) with a meniscal tear. METHODS: Researchers and experienced physical therapists developed a 12-week supervised neuromuscular and strengthening exercise therapy program based on clinical expertise and available evidence. Six patients (age range 22-39 years) considered eligible for meniscal surgery by an orthopedic surgeon underwent the program...
July 2018: Journal of Bodywork and Movement Therapies
Kenneth Pihl, Aleksandra Turkiewicz, Martin Englund, L Stefan Lohmander, Uffe Jørgensen, Nis Nissen, Jeppe Schjerning, Jonas B Thorlund
OBJECTIVES: We explored associations between specific meniscal pathologies and other concurrent structural knee pathologies with presence of self-reported mechanical symptoms in patients undergoing meniscal surgery. DESIGN: Cross-sectional study. METHODS: We included patients undergoing surgery for a meniscal tear from Knee Arthroscopy Cohort Southern Denmark (KACS). Pre-surgery, patients completed online questionnaires including self-reported presence of mechanical symptoms...
July 31, 2018: Journal of Science and Medicine in Sport
Gilbert Steinbacher, Eduard Alentorn-Geli, Manuel Alvarado-Calderón, David Barastegui, Pedro Álvarez-Díaz, Ramón Cugat
PURPOSE: To report the outcomes (subjective function, return to play, complications and reoperations) of arthroscopic all-inside meniscal fixation in a large sample of soccer players with hypermobile lateral meniscus. METHODS: Between 2010 and 2015, 55 patients undergoing surgical treatment for hypermobile lateral meniscus at Mutualidad Catalana de Futbolistas (Barcelona, Spain) were identified. Patients with open physes, associated injuries, discoid meniscus, or clinical follow-up less than 6 months were excluded...
August 11, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Michel Wathier, Benjamin A Lakin, Benjamin G Cooper, Prashant N Bansal, Alison M Bendele, Vahid Entezari, Hideki Suzuki, Brian D Snyder, Mark W Grinstaff
Intra-articular injection of hyaluronic acid (HA) is used to treat osteoarthritis (OA) as a viscosupplement, yet it only provides short-term benefit because HA is cleaved by hyaluronidase and cleared out of the joint after several days. Therefore, we developed a new polymer biolubricant based on poly-oxanorbornane carboxylate to enhance joint lubrication for a prolonged time. Rheological and biotribological studies of the biolubricant reveal viscoelastic properties and coefficient of friction equivalent and superior to that of healthy synovial fluid, respectively...
August 7, 2018: Biomaterials
Angela E Kedgley, Teng-Hui Saw, Neil A Segal, Ulrich N Hansen, Anthony M J Bull, Spyros D Masouros
PURPOSE: To analyse the stress distribution through longitudinal and radial meniscal tears in three tear locations in weight-bearing conditions and use it to ascertain the impact of tear location and type on the potential for healing of meniscal tears. METHODS: Subject-specific finite-element models of a healthy knee under static loading at 0°, 20°, and 30° knee flexion were developed from unloaded magnetic resonance images and weight-bearing, contrast-enhanced computed tomography images...
August 10, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Ryuichi Nakamura, Masaki Takahashi, Kazunari Kuroda, Yasuo Katsuki
Medial meniscus posterior root tear (MMPRT) is now attracting increased attention as a risk factor for the development of osteoarthritis. However, the healing rate after root repair by the suture anchor technique or the pull-out technique is still low. Here we report on a technique of MMPRT repair using suture anchor combined with arthroscopic meniscal centralization and open wedge high tibial osteotomy (OWHTO). The purposes of this technique are (1) to distribute the meniscal hoop tension between the root repair site and the centralization site and (2) to reduce the load on medial meniscus by OWHTO...
July 2018: Arthroscopy Techniques
Neil S Kumar, Tiahna Spencer, Mark P Cote, Robert A Arciero, Cory Edgar
Background: Medial meniscal tears are commonly seen during anterior cruciate ligament reconstruction (ACLR). A subset of these injuries includes posterior meniscocapsular junction or "ramp" tears. One criterion that may correlate with a ramp lesion is the presence of posterior medial tibial plateau (PMTP) edema. Purpose: To compare patients with ramp lesions to patients with nonramp (meniscal body) medial meniscal tears and correlate PMTP edema on preoperative magnetic resonance imaging (MRI) to the incidence of ramp tears...
June 2018: Orthopaedic Journal of Sports Medicine
Filippo Del Grande, Marco Delcogliano, Riccardo Guglielmi, Esther Raithel, Steven E Stern, Derek F Papp, Christian Candrian, Jan Fritz
OBJECTIVES: The aim of this study was to test the hypothesis that magnetic resonance imaging (MRI) of the knee with 10-minute 3-dimensional (3D) controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA) sampling perfection with application optimized contrast using different flip angle evolutions (SPACE) turbo spin echo (TSE) protocols can replace 20-minute 2-dimensional (2D) TSE standard-of-reference protocols for the diagnosis of internal derangement. MATERIALS AND METHODS: After internal review board approval and prospective informed consent, 100 symptomatic subjects underwent MRI of the knee at 3 T and 50 symptomatic subjects at 1...
August 6, 2018: Investigative Radiology
Matthew J Matava
Making a National Football League (NFL) team is tough; making one after undergoing an anterior cruciate ligament (ACL) reconstruction is tougher. NFL Combine participants who are post-ACL reconstruction, particularly with certain graft types such as allografts and to a lesser extent hamstring grafts, are frequently 'down-graded' despite the presence of a stable, well-placed graft without any associated meniscal or chondral damage. Whether NFL general managers are truly prescient in accurately predicting decreased performance by choosing a player later in the draft, or whether NFL coaching staffs knowingly or unknowingly restrict an athlete's playing time based on draft position or surgical history is unknown...
August 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
Si Heng Sharon Tan, Aishwarya Kripesh, Chloe Xiaoyun Chan, Lingaraj Krishna
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. Therefore, in the cross-sectional study of consecutive patients, all patients who underwent ACL reconstruction in a single institution were identified if they had a magnetic resonance imaging (MRI) done within 6 weeks of sustaining the injury and if their injury was sustained during sports activities...
August 1, 2018: Journal of Knee Surgery
Andrew J Kompel, Akira M Murakami, Lars Engebretsen, Bruce B Forster, Mina Lotfi, Mohamed Jarraya, Daichi Hayashi, Frank W Roemer, Michel D Crema, Ali Guermazi
OBJECTIVE: The purpose of this article is to describe knee abnormalities and the occurrence of MRI-detected sports-related knee abnormalities by evaluating MRI examinations performed during the Rio de Janeiro Olympic Games held in August 2016. CONCLUSION: There were 11,274 athletes at the Rio 2016 Olympic Games, and 113 of them underwent at least one knee MRI in the Olympic Village. Cartilage abnormalities, followed by meniscal tears and ligament sprains, were the most frequent abnormalities...
July 31, 2018: AJR. American Journal of Roentgenology
Brittney A Luc-Harkey, Clare E Safran-Norton, Lisa A Mandl, Jeffrey N Katz, Elena Losina
BACKGROUND: Sufficient lower extremity muscle strength is necessary for performing functional tasks, and individuals with knee osteoarthritis demonstrate thigh muscle weakness compared to controls. It has been suggested that lower muscle strength is associated with a variety of clinical features including pain, mobility, and functional performance, yet these relationships have not been fully explored in patients with symptomatic meniscal tear in addition to knee osteoarthritis. Our purpose was to evaluate the associations of quadriceps and hamstrings muscle strength with structural damage and clinical features in individuals with knee osteoarthritis and symptomatic meniscal tear...
July 27, 2018: BMC Musculoskeletal Disorders
Eric Hamrin Senorski, Eleonor Svantesson, Angelo Baldari, Olufemi R Ayeni, Lars Engebretsen, Francesco Franceschi, Jón Karlsson, Kristian Samuelsson
OBJECTIVE: To perform a systematic review of findings from the Scandinavian knee ligament registers with regard to factors that affect patient reported outcome after anterior cruciate ligament (ACL) reconstruction. DESIGN: Systematic review. DATA SOURCES: Four electronic databases: PubMed, EMBASE, the Cochrane Library and AMED were searched, and 157 studies were identified. Two reviewers independently screened the titles, abstracts and full text articles for eligibility...
July 20, 2018: British Journal of Sports Medicine
(no author information available yet)
No abstract text is available yet for this article.
July 18, 2018: Journal of Bone and Joint Surgery. American Volume
Jacob J Capin, Ashutosh Khandha, Ryan Zarzycki, Kurt Manal, Thomas S Buchanan, Lynn Snyder-Mackler
BACKGROUND: Knee osteoarthritis risk is high after anterior cruciate ligament reconstruction (ACLR) and arthroscopic meniscal surgery, and higher among individuals who undergo both. Although osteoarthritis development is multifactorial, altered walking mechanics may influence osteoarthritis progression. The purpose of this study was to compare gait mechanics after ACLR among participants who had undergone no medial meniscal surgery, partial medial meniscectomy, or medial meniscal repair...
July 18, 2018: Journal of Bone and Joint Surgery. American Volume
Jonas Pogorzelski, Alexander Themessl, Andrea Achtnich, Erik M Fritz, Klaus Wörtler, Andreas B Imhoff, Knut Beitzel, Stefan Buchmann
BACKGROUND: Septic arthritis (SA) of the knee after anterior cruciate ligament reconstruction (ACLR) is a rare but potentially devastating condition. In certain cases, graft removal becomes necessary. PURPOSE: To evaluate clinical, subjective, and radiologic outcomes of patients with SA after ACLR and assess whether graft retention has superior clinical results as compared with graft removal. STUDY DESIGN: Cohort study; Level of evidence, 3...
August 2018: American Journal of Sports Medicine
Hiroshi Sasaki, Benjamin B Rothrauff, Peter G Alexander, Hang Lin, Riccardo Gottardi, Freddie H Fu, Rocky S Tuan
BACKGROUND: Radial tears of the meniscus are a common knee injury, frequently resulting in osteoarthritis. To date, there are no established, effective treatments for radial tears. Adipose-derived stem cells (ASCs) may be an attractive cell source for meniscal regeneration because they can be quickly isolated in large number and are capable of undergoing induced fibrochondrogenic differentiation mediated by transforming growth factor β3 (TGF-β3). However, the use of ASCs for meniscal repair is largely unexplored...
August 2018: American Journal of Sports Medicine
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