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Meniscectomy

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https://www.readbyqxmd.com/read/29146386/the-risk-of-symptomatic-knee-osteoarthritis-after-arthroscopic-meniscus-repair-vs-partial-meniscectomy-vs-the-general-population
#1
Fredrik Persson, Aleksandra Turkiewicz, Dan Bergkvist, Paul Neuman, Martin Englund
OBJECTIVE: To compare consultation rate for knee osteoarthritis (OA) after meniscus repair, arthroscopic partial meniscectomy (APM), and in general population, respectively. METHOD: We identified patients aged 16-45 years having had meniscus surgery due to traumatic meniscus tear in 1998-2010 in southern Sweden by a healthcare register. Patients were followed from surgery until a diagnosis of knee OA, relocation, death, or December 31(st), 2015. We studied the consultation rate for knee OA compared to the general population...
November 13, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29145286/bilateral-discoid-medial-meniscus-associated-with-meniscal-tears-and-hypoplasia-of-the-medial-femoral-condyle-a-case-report
#2
Hong-De Wang, Shi-Jun Gao
RATIONALE: Bilateral discoid medial menisci is an extremely rare abnormality of the knee joint. The presence of a discoid medial meniscus has been associated with magnetic resonance imaging (MRI) and radiographic changes in the tibial region, such as cupping of the medial tibial plateau and tibial physis collapse. While discoid medial meniscal tears with hypoplasia of the femoral medial condyles have not been previously reported. Herein, we report a case of bilateral discoid medial menisci associated with meniscal tears and femoral bone changes...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29137955/the-cost-effectiveness-of-arthroscopic-partial-meniscectomy-comparing-apples-and-oranges
#3
EDITORIAL
Jeffrey N Katz, Elena Losina
No abstract text is available yet for this article.
November 11, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29137624/compression-rate-dependent-nonlinear-mechanics-of-normal-and-impaired-porcine-knee-joints
#4
Marcel Leonardo Rodriguez, LePing Li
BACKGROUND: The knee joint performs mechanical functions with various loading and unloading processes. Past studies have focused on the kinematics and elastic response of the joint with less understanding of the rate-dependent load response associated with viscoelastic and poromechanical behaviors. METHODS: Forty-five fresh porcine knee joints were used in the present study to determine the loading-rate-dependent force-compression relationship, creep and relaxation of normal, dehydrated and meniscectomized joints...
November 14, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29126382/analysis-of-medical-service-use-of-knee-osteoarthritis-and-knee-meniscal-and-ligament-injuries-in-korea-a-cross-sectional-study-of-national-patient-sample-data
#5
Chang Yong Suh, Yoon Jae Lee, Joon-Shik Shin, Jinho Lee, Me-Riong Kim, Wonil Koh, Yun-Yeop Cha, Byung-Cheul Shin, Eui-Hyoung Hwang, Kristin Suhr, Mia Kim, In-Hyuk Ha
BACKGROUND: Osteoarthritis (OA) and meniscal and ligament injuries of the knee are the two most common knee disorders in Korea. The aim of this study was to analyze the demographic characteristics, medical service use and related costs for these disorders, and the results are expected to help inform practitioners, researchers, and policy-makers. METHODS: The present study aimed to evaluate incidence and patient characteristics, and to assess current medical service use, usual care, and medical expenses of knee disorders by analyzing 2014 national patient sample data from the Korean Health Insurance Review and Assessment Service...
November 10, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29122451/in-vivo-tibiofemoral-skeletal-kinematics-and-cartilage-contact-arthrokinematics-during-decline-walking-after-isolated-meniscectomy
#6
Liying Zheng, Robert Carey, Eric Thorhauer, Scott Tashman, Christopher Harner, Xudong Zhang
We investigated the effects of isolated meniscectomy on tibiofemoral skeletal kinematics and cartilage contact arthrokinematics in vivo. We recruited nine patients who had undergone isolated medial or lateral meniscectomy, and used a dynamic stereo-radiography (DSX) system to image the patients' knee motion during decline walking. A volumetric model-based tracking process determined 3D tibiofemoral kinematics from the recorded DSX images. Cartilage contact arthrokinematics was derived from the intersection between tibial and femoral cartilage models co-registered to the bones...
November 6, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/29114640/evolution-of-osteochondritis-dissecans-of-the-lateral-femoral-condyle-combined-with-discoid-meniscus
#7
Erica Bulgheroni, Lorenzo Mattioli, Paolo Bulgheroni
The discoid meniscus is a rare anomaly of the knee that affects mostly the lateral meniscus and is often asymptomatic. The osteochondritis dissecans is a disorder of the subchondral bone and articular cartilage and occurs frequently associated with the discoid lateral meniscus. In the present case, we showed the evolution of this association related to surgical treatment. A patient with lateral knee pain and a magnetic resonance depicting a torn discoid lateral meniscus and osteochondritis dissecans of the lateral femoral condyle was treated with partial meniscectomy and meniscal sutures...
June 2017: Joints
https://www.readbyqxmd.com/read/29114639/knee-septic-arthritis-after-arthroscopy-incidence-risk-factors-functional-outcome-and-infection-eradication-rate
#8
REVIEW
G Balato, S L Di Donato, T Ascione, A D'Addona, F Smeraglia, G Di Vico, D Rosa
Purpose  Septic knee arthritis following arthroscopy is a rare but dreaded complication. Definition and management of knee deep infections are quite discussed in literature. In this review, literature regarding infections after knee arthroscopy is analyzed highlighting the incidence, causative bacteria, risk factors as well as clinical outcomes. Methods  We performed a review of the literature matching the following key words: "septic arthritis" OR "infection" AND "arthroscopy" AND "knee." Knee arthroscopic procedures, such as debridement, meniscectomy, meniscus repair, synovectomy, microfracture, and lateral release, were considered...
June 2017: Joints
https://www.readbyqxmd.com/read/29114633/surgical-management-of-degenerative-meniscus-lesions-the-2016-esska-meniscus-consensus
#9
P Beaufils, R Becker, S Kopf, M Englund, R Verdonk, M Ollivier, R Seil
Purpose  A degenerative meniscus lesion is a slowly developing process typically involving a horizontal cleavage in a middle-aged or older person. When the knee is symptomatic, arthroscopic partial meniscectomy has been practised for a long time with many case series reporting improved patient outcomes. Since 2002, several randomised clinical trials demonstrated no additional benefit of arthroscopic partial meniscectomy compared to non-operative treatment, sham surgery or sham arthroscopic partial meniscectomy...
June 2017: Joints
https://www.readbyqxmd.com/read/29112467/meniscectomy-and-resultant-articular-cartilage-lesions-of-the-knee-among-prospective-national-football-league-players-an-imaging-and-performance-analysis
#10
Jorge Chahla, Mark E Cinque, Jonathan A Godin, George Sanchez, George F Lebus, James M Whalen, Mark D Price, Nicholas I Kennedy, Gilbert Moatshe, Robert F LaPrade, Matthew T Provencher
BACKGROUND: The effect of prior meniscectomy and the resulting reduction in meniscal tissue on a potential National Football League (NFL) player's articular cartilage status and performance remain poorly elucidated. Purpose/Hypothesis: (1) To determine the epidemiology, imaging characteristics, and associated articular cartilage pathology of the knee among players with a previous meniscectomy who were participating in the NFL Combine and (2) to evaluate the effect of these injuries on performance as compared with matched controls...
November 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29106743/quantifying-meniscal-kinematics-in-dogs
#11
Brian H Park, Scott A Banks, Antonio Pozzi
The dog has been used extensively as an experimental model to study meniscal treatments such as meniscectomy, meniscal repair, transplantation and regeneration. However, there is very little information on meniscal kinematics in the dog. This study used MR imaging to quantify in vitro meniscal kinematics in loaded dog knees in four distinct poses: extension, flexion, internal and external rotation. A new method was used to track the meniscal poses along the convex and posteriorly tilted tibial plateau. Meniscal displacements were large, displacing 13...
November 6, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29103840/the-influence-of-full-thickness-chondral-defects-on-outcomes-following-meniscal-allograft-transplantation-a-comparative-study
#12
Bryan M Saltzman, Maximilian A Meyer, Timothy S Leroux, Matthew E Gilelis, Margot Debot, Adam B Yanke, Brian J Cole
PURPOSE: To compare a series of patients who underwent meniscus allograft transplantation (MAT) with full-thickness chondral defects (FTD) with those with no chondral defect (ND) with regard to the following: change in patient-reported outcomes (PROs) from baseline to 2-year follow-up and baseline to the final follow-up (including comparisons to minimal clinically important differences), complications and complication rates, reoperations and reoperation rates/timing, and failures and time to failure (revision MAT or conversion to total knee arthroplasty)...
November 2, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29102019/editorial-commentary-obese-and-overweight-should-they-be-concerned-about-the-long-term-consequences-of-a-partial-meniscectomy
#13
EDITORIAL
Erik Hohmann
Is obesity associated with inferior outcomes after partial meniscectomies? Recent research using data from the Chondral Lesions and Meniscus Procedures trial could not demonstrate any differences in obese and overweight patients compared with individuals with a normal body mass index. However, the inclusion of multiple confounders, and a short follow-up of only 1 year limit the validity of their study and the results must be viewed with great caution.
November 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29080286/evolve-the-australian-rheumatology-association-s-top-five-list-of-investigations-and-interventions-doctors-and-patients-should-question
#14
Kathleen Morrisroe, Ayano Nakayama, Jason Soon, Mark Arnold, Les Barnsley, Claire Barrett, Peter M Brooks, Stephen Hall, Patrick Hanrahan, Pravin Hissaria, Graeme Jones, Veera Srividya Katikireddi, Helen Keen, Rodger Laurent, Mandana Nikpour, Katherine Poulsen, Philip Robinson, Muriel Soden, Nigel Wood, Nicola Cook, Catherine Hill, Rachelle Buchbinder
BACKGROUND: The EVOLVE (evaluating evidence. enhancing efficiencies) initiative aims to drive safer, higher-quality patient care through identifying and reducing low-value practices. AIMS: To determine the Australian Rheumatology Association's (ARA's) 'top 5' list of low-value practices. METHODS: A working group comprising 19 rheumatologists and three trainees compiled a preliminary list. Items were retained if there was strong evidence of low-value and there was high or increasing clinical use and/or increasing cost...
October 28, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/29062478/mesenchymal-stem-cells-in-human-meniscal-regeneration-a-systematic-review
#15
REVIEW
Ernest Chew, Rohan Prakash, Wasim Khan
BACKGROUND: Stem cell regeneration is the holy grail of meniscal tissue repair. Currently, the best treatment is to preserve the original meniscus but if it fails, a partial meniscectomy is indicated to delay the onset of osteoarthritis. MATERIALS AND METHODS: The authors present a systematic review to determine the up-to-date evidence underlying the use of mesenchymal stem cells for meniscal regeneration in humans. A search was conducted using the electronic databases of MEDLINE/Pubmed, Google scholar, and the Cochrane Collaboration...
December 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/29059110/discoid-lateral-meniscus-in-children-diagnosis-management-and-outcomes
#16
Mininder S Kocher, Catherine A Logan, Dennis E Kramer
Discoid meniscus is a congenital variant of the knee joint that typically involves abnormal morphology and potential instability of the lateral meniscus. Some discoid menisci have abnormal peripheral attachments and are unstable. Discoid menisci are prone to tearing secondary to increased thickness, poor tissue quality, and instability. Patients may or may not be symptomatic. Torn or unstable discoid menisci cause mechanical symptoms, pain, and swelling. Symptomatic patients in whom nonsurgical management fails most frequently are treated with arthroscopic surgery...
November 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29051899/surgical-treatment-of-segond-fractures-in-acute-anterior-cruciate-ligament-reconstruction
#17
Andrea Ferretti, Edoardo Monaco, Megan Rianne Wolf, Matteo Guzzini, Angelo De Carli, Daniele Mazza
BACKGROUND: The Segond fracture is an avulsion-type fracture located on the anterolateral aspect of the tibia associated with a ligament recently termed the anterolateral ligament. This injury has been described as pathognomonic for an anterior cruciate ligament (ACL) tear and is associated with a higher grade pivot shift. PURPOSE: To present and report 2-year clinical outcomes of a surgical technique for acute ACL reconstruction with fixation of a concomitant Segond fracture...
October 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29039525/the-association-between-parathyroid-hormone-1%C3%A2-34-and-the-wnt-%C3%AE-%C3%A2-catenin-signaling-pathway-in-a-rat-model-of-osteoarthritis
#18
Long Ma, Jiang Wu, Qun Hua Jin
The aim of the current study was to determine the effect of parathyroid hormone (PTH) 1‑34 on cartilage degeneration, and the association between PTH 1‑34 and factors associated with the Wnt/β‑catenin pathway following anterior cruciate ligament and medial meniscectomy‑induced osteoarthritis (OA) in rats. A total of 64 Sprague‑Dawley rats were randomly divided into the following four groups: Sham‑operated rats with normal saline (NS)‑treatment (n=16); anterior cruciate ligament transection with partial medial meniscectomy (ACLT + MMx) rats with NS‑treatment (n=16); sham‑operated rats treated with PTH 1‑34 (n=16); and ACLT + MMx rats treated with PTH 1‑34 (n=16)...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29035980/incidence-of-symptomatic-pulmonary-embolus-and-deep-vein-thrombosis-after-knee-arthroscopy-in-the-pediatric-and-adolescent-population
#19
Brian C Lau, Jason Jagodzinski, Nirav K Pandya
OBJECTIVE: The incidence of deep venous thrombosis (DVT) and pulmonary embolism (PE) after pediatric knee arthroscopy is unknown. The purpose of this study was to determine the incidence of venous thromboembolism (VTE) after knee arthroscopy in the pediatric and adolescent population in a high-volume center. DESIGN: Retrospective cohort study. SETTING: Tertiary care children's hospital. PATIENTS: All patients who underwent arthroscopy of the knee for a sports-related injury by 2 surgeons were reviewed...
October 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035380/mixed-cell-therapy-of-bone-marrow-derived-mesenchymal-stem-cells-and-articular-cartilage-chondrocytes-ameliorates-osteoarthritis-development
#20
Indira Prasadam, Akoy Akuien, Thor E Friis, Wei Fang, Xinzhan Mao, Ross W Crawford, Yin Xiao
Of the many cell-based treatments that have been tested in an effort to regenerate osteoarthritic articular cartilage, none have ever produced cartilage that compare with native hyaline cartilage. Studies show that different cell types lead to inconsistent results and for cartilage regeneration to be considered successful, there must be an absence of fibrotic tissue. Here we report of a series of experiments in which bone marrow-derived stem cells (BMSCs) and articular cartilage chondrocytes (ACCs) were mixed in a 1:1 ratio and tested for their ability to enhance cartilage regeneration in three different conditions: (1) in an in vitro differentiation model; (2) in an ex vivo cartilage defect model implanted subcutaneously in mice; and (3) as an intra-articular injection in a meniscectomy-induced OA model in rats...
October 16, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
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