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Murat Aşçi, Orhan Balta, Recep Kurnaz, Mehmet Burtaç Eren, Yunus Emre Kuyucu, Taner Güneş
INTRODUCTION: Radial meniscus tears are seen in young patients, especially with anterior cruciate ligament ruptures. Repair of complete radial meniscus tear is necessary for the meniscus functions. The most important factor for success of the meniscus repair is primary stability, but it is still unknown which technique is ideal repair technique. AIM: We developed a new suture technique named Horizontal Butterfly (HB). In this novel technique the contact between meniscal tissue and suture is more than Horizontal Loop (HL) that routinely used today...
August 14, 2018: Acta Orthopaedica et Traumatologica Turcica
Sung-Sahn Lee, Jin Hwan Ahn, Jun Ho Kim, Bong Soo Kyung, Joon Ho Wang
BACKGROUND: Previous studies have reported various healing rates (0%-100%) as evaluated by second-look arthroscopy after repair of medial meniscal root tears (MMRTs). Such variable results might provoke suspicion of the necessity for repair. Furthermore, the effect of meniscal healing on the clinical outcomes has not been reported. PURPOSE: To more precisely determine the healing rate of MMRTs repaired through the transseptal portal, which could provide objective visualization of the healed meniscus, and to identify the effect of meniscal healing on the clinical and radiological outcomes...
August 17, 2018: American Journal of Sports Medicine
Andres Kroker, Sarah L Manske, Nicholas Mohtadi, Steven K Boyd
BACKGROUND: Anterior cruciate ligament (ACL) tears increase the risk of developing knee osteoarthritis. This risk increases further with concurrent meniscus injury. The role of bone changes during knee osteoarthritis development are not well-understood, but may be important to its etiology. PURPOSE: To explore the effects of ACL tears on bone mineral density (BMD) and bone microarchitecture at five years post-op and their relationship to meniscal pathology, using high-resolution peripheral quantitative computed tomography (HR-pQCT)...
August 13, 2018: Knee
Taylor L Ernest, Peter E Kondrashov
BACKGROUND: The main objective of the study was to determine if excessive body weight and meniscal destabilization cause knee articular cartilage damage and changes in meniscal histology indicative of knee osteoarthritis (OA). METHODS: Forty female Lewis rats were randomly assigned to regular diet sham surgery, regular diet medial meniscus destabilization (DMM) surgery, high-fat diet sham surgery, or high-fat diet DMM surgery. Surgical intervention occurred four weeks after diet initiation...
August 13, 2018: Knee
A Munjal
Dislocation of meniscal bearing insert is a rare but well-recognised complication in meniscal bearing unicompartmental knee arthroplasty (UKA). On the other hand, fracture of meniscal bearing insert of phase III Oxford UKA has only been reported once in the current literature. The authors report a case of fracture and posterior dislocation of one of the fragments of the meniscal bearing insert in a mobile bearing medial UKA. The fracture was only diagnosed during the revision surgery. The posteriorly dislodged fragment was subsequently retrieved through the same skin incision and a new polyethylene insert of the same size was implanted...
July 2018: Malaysian Orthopaedic Journal
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
Dylan Meng, Kieran O'Sullivan, Ben Darlow, Peter B O'Sullivan, Guri Ranum Ekås, Bruce B Forster
No abstract text is available yet for this article.
August 14, 2018: British Journal of Sports Medicine
Norifumi Suga, Tomoyuki Nakasa, Masakazu Ishikawa, Atsuo Nakamae, Seiju Hayashi, Masahiro Yoshikawa, Yoshikazu Sumida, Yusuke Tsuyuguchi, Nobuo Adachi
BACKGROUND: Patients with discoid lateral meniscus (DLM) are prone to meniscal injuries related to its shape and abnormal mobility. The anatomical joint inclination of the proximal tibiofibular joint (PTFJ) can also affect joint movement in knee motion. However, an association between PTFJ morphology and DLM remains unclear. The purpose of this study was to investigate the morphology of the PTFJ on MRI and how this differs between patients with and without DLM. MATERIALS AND METHODS: Fifty-eight patients with DLM and 58 age-matched controls (normal meniscus) were included in this study...
August 11, 2018: Knee
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
Xiang-Hong Meng, Zhi Wang, Xue-Ning Zhang, Jin Xu, Yong-Cheng Hu
OBJECTIVE: To evaluate the correlation between features of knee joint rheumatoid arthritis (RA) identified on MRI and histological examination as a means of elucidating the pathogenesis of joint destruction in RA. METHODS: This is a prospective analysis of 26 knee joints of 22 patients who underwent total knee arthroplasty (TKA) for the treatment of RA. Based on the degree of destruction of articular cartilage and the menisci, the occurrence of bone marrow edema and bone erosion, and synovial thickening, the stage of the knee joints were classified using MRI by two radiologists...
August 9, 2018: Orthopaedic Surgery
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
Stefano Zaffagnini, Alberto Grassi, Iacopo Romandini, Maurilio Marcacci, Giuseppe Filardo
PURPOSE: Aim of this study is to document if combined meniscal allograft transplantation (MAT) and ACL reconstruction can improve knee function, reduce pain and allow patients with meniscal defect and ACL lesion to resume sport activities. METHODS: Fifty MAT, arthroscopically performed without bone plugs and combined with one-stage primary or revision ACL reconstruction, with or without high tibial osteotomy (HTO), were included. Patients (aged 38.2 ± 10.6 years, 87% males) were evaluated at a mean follow-up of 5 years with Lysholm, Tegner and VAS scores...
August 6, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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