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https://www.readbyqxmd.com/read/29144772/subchondral-bone-degradation-after-microfracture-for-osteochondral-lesions-of-the-talus-an-mri-analysis
#1
Yoshiharu Shimozono, Max Coale, Youichi Yasui, Amanda O'Halloran, Timothy W Deyer, John G Kennedy
BACKGROUND: Microfracture is the most common cartilage-reparative procedure for the treatment of osteochondral lesions of the talus (OLTs). Damage to the subchondral bone (SCB) during microfracture may irreversibly change the joint-loading support of the ankle, leading to reparative fibrocartilage degradation over time. PURPOSE: To investigate the morphological change in the SCB after microfracture for OLT by developing a novel magnetic resonance imaging (MRI) scoring system specifically for evaluating the SCB...
November 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29138892/-partial-and-complete-joint-transplantation-with-fresh-osteochondral-allografts-the-flocsat-concept
#2
REVIEW
C Krettek, J-D Clausen, N Bruns, C Neunaber
Cartilage defects in adult patients do not heal well. Fresh osteochondral allograft (OCA) transplantation is based on mature, living, mechanically sound hyaline cartilage attached to a bone interface, which is brought into an osteochondral defect, where it becomes osseointegrated. According to current knowledge, intact hyaline cartilage tissue is immune privileged and does not, in contrast to bone, meniscus or ligaments, cause an immune reaction. The technique has the unique advantage of transplanting viable, mature and mechanically stable hyaline cartilage into the affected area...
November 14, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29137065/primary-leiomyosarcoma-of-the-bone-a-case-report-and-a-review-of-the-literature
#3
Federica Recine, Alberto Bongiovanni, Roberto Casadei, Federica Pieri, Nada Riva, Alessandro De Vita, Laura Mercatali, Chiara Liverani, Chiara Spadazzi, Giacomo Miserocchi, Valentina Fausti, Dino Amadori, Toni Ibrahim
RATIONALE: Leiomyosarcoma (LMS) is a malignant sarcoma that can occur in different anatomic sites, including the bone, showing similar histological characteristics but heterogeneous clinical behavior and prognosis. Primary bone LMS was first described in 1965. It is a very rare sarcoma, accounting for <0.7% of all primary malignant bone tumors. PATIENT CONCERNS: We report the case of a 52-year-old male with primary bone LMS who presented with a solitary osteolytic lesion with focal cortical destruction in the left clavicle, seen on an x-ray and subsequent computed tomography (CT) scan...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29135038/comparison-of-iatrogenic-articular-cartilage-injury-in-canine-stifle-arthroscopy-versus-medial-parapatellar-mini-arthrotomy-in-a-cadaveric-model
#4
Cleo P Rogatko, Jennifer J Warnock, Gerd Bobe, Valentine D Verpaalen
OBJECTIVE: To assess iatrogenic articular cartilage injury (IACI) resulting from arthroscopy versus medial parapatellar mini-arthrotomy of the stifle. STUDY DESIGN: Paired comparison of canine cadaver stifles treated with arthroscopy or mini-arthrotomy ANIMALS: Paired canine stifles from 14 cadavers (≥20 kg). METHODS: Stifles (N = 28) were assigned to arthroscopy or arthrotomy. Full stifle joint exploration and meniscal probing were performed...
November 14, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/29134251/meniscal-repair-results-in-inferior-short-term-outcomes-compared-with-meniscal-resection-a-cohort-study-of-6398-patients-with-primary-anterior-cruciate-ligament-reconstruction
#5
Eleonor Svantesson, Riccardo Cristiani, Eric Hamrin Senorski, Magnus Forssblad, Kristian Samuelsson, Anders Stålman
PURPOSE: To compare patient reported outcome measures (PROMs) during the first postoperative year between isolated anterior cruciate ligament (ACL) reconstruction and ACL reconstruction with concomitant meniscal intervention. METHODS: Patients who underwent primary ACL reconstruction at Capio Artro Clinic, Stockholm, Sweden, between 1st Jan 2001 and 31st Dec 2014 without concomitant injuries others than meniscal and/or cartilage lesions were included. Five groups of meniscal treatment simultaneously to ACL reconstruction were established; medial meniscal (MM) resection, MM repair, lateral meniscal (LM) resection, LM repair, and MM + LM resection...
November 13, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29129649/tsg-6-a-double-edged-sword-for-osteoarthritis
#6
Ching-Heng Chou, David E Attarian, Hans-Georg Wisniewski, Philip A Band, Virginia B Kraus
PURPOSE: To explore mechanisms underlying the association of TSG-6 with osteoarthritis (OA) progression. METHODS: TSG-6-mediated heavy chain (HC) transfer (TSG-6 activity) and its association with inflammatory mediators were quantified in knee OA (n=25) synovial fluids. Paired intact and damaged cartilages from the same individuals (20 tibial and 12 meniscal) were analyzed by qRT-PCR and immunohistochemistry (IHC) for gene and protein expression of TSG-6 and components of IαI (necessary for TSG-6 activity), and for TSG-6 activity +/- spiked in IαI...
November 9, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29126545/mri-ankle-and-subtalar-characteristics-in-haemochromatosis-arthropathy-a-case-control%C3%A2-study
#7
A Elstob, V Ejindu, C W Heron, P D W Kiely
AIM: To examine the magnetic resonance imaging (MRI) features of the ankle and subtalar joints that might distinguish genetic haemochromatosis (GH). MATERIALS AND METHODS: The present study was a retrospective case-control study comparing 30 MRI studies of GH patients with ankle or subtalar arthropathy with 30 matched controls with ankle pain. Anonymised images were scored using a semi-quantative tool adapted from the MRI osteoarthritis knee score. Scores were generated for bone marrow lesions size, number, and distinguishing the proportion of each lesion consisting of subchondral cyst versus oedema...
November 7, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29126349/bone-marrow-aspirate-concentrate-for-cartilage-defects-of-the-knee-from-bench-to-bedside-evidence
#8
Eric J Cotter, Kevin C Wang, Adam B Yanke, Susan Chubinskaya
Objective To critically evaluate the current basic science, translational, and clinical data regarding bone marrow aspirate concentrate (BMAC) in the setting of focal cartilage defects of the knee and describe clinical indications and future research questions surrounding the clinical utility of BMAC for treatment of these lesions. Design A literature search was performed using the PubMed and Ovid MEDLINE databases for studies in English (1980-2017) using keywords, including ["bone marrow aspirate" and "cartilage"], ["mesenchymal stem cells" and "cartilage"], and ["bone marrow aspirate" and "mesenchymal stem cells" and "orthopedics"]...
November 1, 2017: Cartilage
https://www.readbyqxmd.com/read/29126043/biphasic-bioresorbable-scaffold-trufit-plug-%C3%A2-for-the-treatment-of-osteochondral-lesions-of-talus-6-to-8-year-follow-up
#9
Elvira Di Cave, Pierluigi Versari, Fabio Sciarretta, David Luzon, Lorenzo Marcellini
BACKGROUND: The ideal treatment of osteochondral lesions of the talus (OLT) is debatable. The TruFit plug has been investigated as a potential treatment method for osteochondral defects. This is a biphasic scaffold designed to stimulate cartilage and subchondral bone formation. The purpose of this retrospective study was to investigate the long-term functional and MRI outcomes of the TruFit Plug for the treatment of OLT. METHODS: Twelve consecutive patients treated from March 2007 to April 2009 for OLT were evaluated...
June 3, 2017: Foot
https://www.readbyqxmd.com/read/29125822/liposclerosing-myxofibrous-tumor-a-rare-tumor-of-proximal-femur
#10
Ozan Beytemür, Ümit Seza Tetikkurt, Cem Albay, Gonca Kavşut, Akif Güleç
Liposclerosing myxofibrous tumor is a very rarely observed benign fibro-osseous lesion, which contains complex histological structures. It was first described in the year 1986. Histopathological examination of the lesion may show myxoid areas, osteoclastic activity, bone trabeculae similar to fibrous dysplasia, fat necrosis, ischemic ossification and rarely cartilage components. This lesion, which is particularly localized to the proximal femur, is thought to be associated with fibrous dysplasia. In this case report, we aim to present a liposclerosing myxofibrous tumor case, which was treated surgically, in light of the literature review...
December 2017: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/29122125/tibial-plateau-fracture-management-arthroscopically-assisted-versus-orif-procedure-clinical-and-radiological-comparison
#11
Esmat Elabjer, Ivan Benčić, Tomislav Ćuti, Tomislav Cerovečki, Stjepan Ćurić, Dinko Vidović
INTRODUCTION: Tibial plateau fractures are articular injuries that may influence final functional outcome of the knee. Although these fractures comprise only 1% of all fractures, the fracture pattern is usually complex and requires anatomical reduction and absolutely stable fixation to achieve satisfactory results. The development of knee osteoarthritis is a common late complication and it can be strongly influenced by additional, underestimated cartilage defects, and meniscal and ligament tears...
November 2017: Injury
https://www.readbyqxmd.com/read/29114627/second-generation-needling-techniques-for-the-treatment-of-chondral-defects-in-animal-model
#12
Pietro Zedde, Sebastiano Cudoni, Lucia Manunta, Eraldo Sanna Passino, Gerolamo Masala, Antonio Brunetti, Francesco Mattia Uboldi, Andrea Fabio Manunta
Purpose  To compare the macroscopic, histological, and immunohistochemical characteristics of the repair tissue of chondral defects treated with microfracture and nanofracture in an ovine model. Methods  Full-thickness chondral lesions were created in the medial femoral condyle of both knees in four adult sheep and were treated with microfracture on one side and with nanofracture on the contralateral side. Chondral repair was assessed after 12 months by macroscopic, histological, and immunohistochemical analyses...
March 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
#13
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/29111302/-cryopyrin-associated-periodic-syndromes
#14
P Quartier, F Rodrigues, S Georgin-Lavialle
Cryopyrin-associated periodic syndromes (CAPS) are linked to one single gene mutations, however they are associated with 3 syndromes, which are, from the mildest to the most severe phenotype familial cold urticaria, Muckle-Wells syndrome and chronic, infantile, neurologic, cutaneous, articular (CINCA) syndrome also called neonatal-onset multisystem inflammatory disease (NOMID). Autosomic dominant inheritance is present in most cases but in CINCA/NOMID syndrome where neomutations are more common. Mutations in the gene encoding cryopyrin, NLRP3, are associated with deregulation of caspase-1 activity, excessive interleukin-1 production and an autoinflammatory syndrome, which in familial cold urticaria and Muckle-Wells syndrome may be triggered or worsened by exposure to coldness...
October 27, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/29110690/autologous-cell-derived-tissue-engineered-cartilage-for-repairing-articular-cartilage-lesions-in-the-knee-study-protocol-for-a-randomized-controlled-trial
#15
Ning Ma, Hongxia Wang, Xian Xu, Yiqun Wan, Yufeng Liu, Mingjie Wang, Wen Yu, Yongjing Dai, Jiang Peng, Quanyi Guo, Changlong Yu, Shibi Lu
BACKGROUND: Spontaneous recovery from articular cartilage injury is difficult, and the ongoing progression of disease can eventually lead to osteoarthritis. Currently, there is no effective non-surgical treatment for articular cartilage injury. Arthroscopic debridement and microfracture surgery are performed for fibrocartilage repair. But fibrocartilage is different from normal articular cartilage, and functional recovery is not satisfactory. Therefore, it is necessary to develop more effective techniques for articular cartilage repair...
November 6, 2017: Trials
https://www.readbyqxmd.com/read/29110501/first-metatarsal-head-osteochondral-defect-treatment-with-particulated-juvenile-cartilage-allograft-transplantation-a-case-series
#16
Bryan Van Dyke, Gregory C Berlet, Justin L Daigre, Christopher F Hyer, Terrence M Philbin
BACKGROUND: Focal damage to articular cartilage, also called an osteochondral defect (OCD), can be a cause of pain and decreased range of motion. Recent advancements have led to transplantation techniques using particulated juvenile articular cartilage allograft. This technique has been applied to the first metatarsal head to a very limited degree, with no published results to our knowledge. The aim of this study was to review the clinical results of patients who underwent particulated juvenile cartilage allograft implantation for first metatarsal head OCDs...
November 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/29104482/human-cartilage-engineering-in-an-in-vitro-repair-model-using-collagen-scaffolds-and-mesenchymal-stromal-cells
#17
Clara Sanjurjo-Rodríguez, Rocío Castro-Viñuelas, Tamara Hermida-Gómez, Isaac Manuel Fuentes-Boquete, Francisco Javier de Toro, Francisco Javier Blanco, Silvia María Díaz-Prado
The purpose of this study was to investigate cartilage repair of in vitro lesion models using human bone marrow mesenchymal stromal cells (hBMSCs) with different collagen (Col) scaffolds. Lesions were made in human cartilage biopsies. Injured samples were pre-treated with interleukin 1β (IL1β) for 24 h; also, samples were not pre-treated. hBMSCs were seeded on different types of collagen scaffolds. The resulting constructs were placed into the lesions, and the biopsies were cultured for 2 months in chondrogenic medium...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29103976/accelerating-knee-mr-imaging-compressed-sensing-in-isotropic-three-dimensional-fast-spin-echo-sequence
#18
Seung Hyun Lee, Young Han Lee, Jin-Suck Suh
PURPOSE: To compare image quality between compressed sensing (CS)-3D-fast spin-echo (FSE) and conventional 3D-FSE sequences for knee magnetic resonance imaging (MRI). METHODS: Knee MRI of 43 patients (male:female, 14:29; mean age, 53years) were acquired using conventional and CS-3D-FSE with an acceleration factor of 1.5. Overall image quality was assessed by correlation coefficient, root-mean-square error (RMSE), and structural similarity (SSIM) index. Regional image quality was evaluated using signal-to-noise ratios (SNRs) and contrast-to-noise ratios (CNRs)...
November 2, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29103840/the-influence-of-full-thickness-chondral-defects-on-outcomes-following-meniscal-allograft-transplantation-a-comparative-study
#19
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/29103309/the-effect-of-nanofibre-based-polyethersulfone-pes-scaffold-on-the-chondrogenesis-of-human-induced-pluripotent-stem-cells
#20
Hossein Mahboudi, Masoud Soleimani, Seyed Ehsan Enderami, Mousa Kehtari, Hana Hanaee-Ahvaz, Hossein Ghanbarian, Mojgan Bandehpour, Shahrzad Nojehdehi Nojehdehi Sh, Samaneh Mirzaei, Bahram Kazemi
Human induced pluripotent stem cells (iPSCs) have been shown to have promising potential for regenerative medicine and tissue engineering applications. Chondrogenic differentiation of iPSCs is important for application in cartilage tissue engineering. In this study, we considered the effect of nanofibre-based polyethersulfone (PES) scaffold on the chondrogenesis of iPSCs. IPSC cells were cultured on the PES scaffold and scaffold free method. After 21 d, real-time PCR was performed to evaluate the cartilage-specific genes in the mRNA levels...
November 6, 2017: Artificial Cells, Nanomedicine, and Biotechnology
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