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meniscal repair

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https://www.readbyqxmd.com/read/28298056/outcomes-after-biologically-augmented-isolated-meniscal-repair-with-marrow-venting-are-comparable-with-those-after-meniscal-repair-with-concomitant-anterior-cruciate-ligament-reconstruction
#1
Chase S Dean, Jorge Chahla, Lauren M Matheny, Justin J Mitchell, Robert F LaPrade
BACKGROUND: Meniscal repair in the setting of anterior cruciate ligament (ACL) reconstruction has demonstrated superior outcomes compared with isolated meniscal repair. Limited evidence exists for the effects of biological augmentation in isolated meniscal repair, particularly as compared with meniscal repair with concomitant ACL reconstruction. Purpose/Hypothesis: The purpose of this study was to compare the outcomes and survivorship of meniscal repair in 2 cohorts of patients: meniscal repair with biological augmentation using a marrow venting procedure (MVP) of the intercondylar notch, and meniscal repair with concomitant ACL reconstruction...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28296429/factors-that-predict-failure-in-anatomic-single-bundle-anterior-cruciate-ligament-reconstruction
#2
Ben Parkinson, Curtis Robb, Michael Thomas, Peter Thompson, Tim Spalding
BACKGROUND: Anatomic graft placement in anterior cruciate ligament (ACL) reconstruction has become the preferred technique for many surgeons. The predictive factors for graft failure in anatomic single-bundle ACL reconstruction are relatively unknown. PURPOSE: To determine the risk factors for graft failure and the relative importance of those factors in anatomic single-bundle ACL reconstruction. STUDY DESIGN: Case-control study; Level of evidence, 3...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28289817/the-all-inside-meniscal-repair-technique-has-less-risk-of-injury-to-the-lateral-geniculate-artery-than-the-inside-out-repair-technique-when-suturing-the-lateral-meniscus
#3
Adrián Cuéllar, Ricardo Cuéllar, Jorge Díaz Heredia, Asier Cuéllar, Ignacio García-Alonso, Miguel Angel Ruiz-Ibán
PURPOSE: To evaluate the risk of injury to the inferior lateral geniculate artery with two different techniques for lateral meniscus repair. METHODS: Eight cadaveric knees were used. Inside-out sutures and an all-inside suture device were placed at the most lateral edge of the popliteal hiatus, and 15 and 30 mm anterior to this point. The minimum distances between the sutures and the inferior lateral geniculate artery were measured through a limited lateral arthrotomy...
March 13, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28282214/clinical-and-radiographic-outcomes-of-meniscus-surgery-and-future-targets-for-biologic-intervention-a-review-of-data-from-the-moon-group
#4
Robert W Westermann, Morgan Jones, David Wasserstein, Kurt P Spindler
Meniscus injury and treatment occurred with the majority of anterior cruciate ligament reconstructions (ACLR) in the multicenter orthopaedic outcomes (MOON) cohort. We describe the patient reported outcomes, radiographic outcomes and predictors of pain from meniscus injuries and treatment in the setting of ACLR. Patient reported outcomes improve significantly following meniscus repair with ACLR, but differences exist based on the meniscus injury laterally (medial or lateral). Patients undergoing medial meniscus repair have worse patient-reported outcomes and more pain compared to those with uninjured menisci...
March 10, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28258328/arthroscopic-meniscus-repair-for-recurrent-subluxation-of-the-lateral-meniscus
#5
Jin Hwan Ahn, Sang Hak Lee, Kang Il Kim, Juhyun Nam
PURPOSE: This study was undertaken to diagnose and to document the clinical results and technical aspects of arthroscopic meniscus repair for recurrent subluxation with peripheral tears around the popliteal hiatus of the lateral meniscus. METHODS: Twenty-three patients (24 knees) with symptomatic recurrent subluxation of the lateral meniscus treated by arthroscopic meniscus repair were included. The inclusion criteria were: (1) patients with knee pain, locking or snapping symptoms despite 3 months of conservative treatment; (2) non-discoid lateral meniscus; (3) stable knee, and (4) tears involving the red-white or red-red zone...
March 3, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28256906/rehabilitation-protocols-after-isolated-meniscal-repair
#6
Kevin O'Donnell, Kevin B Freedman, Fotios P Tjoumakaris
BACKGROUND: Current postoperative rehabilitation protocols after isolated meniscal repair vary widely. No consensus exists with regard to the optimal amount of weightbearing, range of motion, or speed at which the patient progresses through the rehabilitation phases. Confounding factors including concomitant ligamentous or cartilaginous injuries have made studying isolated meniscal tears problematic. PURPOSE: To systematically review and evaluate the influence of range of motion and weightbearing status during the postoperative rehabilitation period after isolated meniscal repair on clinical efficacy and outcome scores...
October 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28243702/sport-specific-outcomes-after-isolated-meniscal-repair-a-systematic-review
#7
REVIEW
Helge Eberbach, Jörn Zwingmann, Lisa Hohloch, Gerrit Bode, Dirk Maier, Philipp Niemeyer, Norbert P Südkamp, Matthias J Feucht
PURPOSE: The purpose of this systematic review was to assess sport-specific outcomes after repair of isolated meniscal tears. METHODS: A systematic electronic search of the MEDLINE and Cochrane database was performed in May 2016 to identify studies that reported sport-specific outcomes after isolated meniscal repair. Included studies were abstracted regarding study characteristics, patient demographics, surgical technique, rehabilitation, and outcome measures. The methodological quality of the included studies was assessed with the Coleman Methodology Score (CMS)...
February 27, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28243169/combined-inside-out-and-all-inside-technique-in-bucket-handle-meniscus-tears
#8
Serdar Yılmaz, Deniz Cankaya, Ahmet Fırat, Alper Devecı, Bulent Ozkurt, Murat Bozkurt
OBJECTIVE: To determine the outcomes after combined inside-out and all-inside repair technique of bucket-handle meniscus tears. METHODS: A retrospective review was made of patients with bucket-handle meniscus tears repaired with combined techniques, using the all-inside technique in posterior meniscal tears and the inside-out technique in the middle part of the meniscal tears. Meniscal healing was assessed clinically using Barrett's criteria and MRI. RESULTS: The study comprised 52 patients with a mean age of 28...
July 2016: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28242455/micromechanical-anisotropy-and-heterogeneity-of-the-meniscus-extracellular-matrix
#9
Qing Li, Feini Qu, Biao Han, Chao Wang, Hao Li, Robert L Mauck, Lin Han
To understand how the complex biomechanical functions of the meniscus are endowed by the nanostructure of its extracellular matrix (ECM), we studied the anisotropy and heterogeneity in the micromechanical properties of the meniscus ECM. We used atomic force microscopy (AFM) to quantify the time-dependent mechanical properties of juvenile bovine meniscus at deformation length scales corresponding to the diameters of collagen fibrils. At this scale, anisotropy in the elastic modulus of the circumferential fibers, the major ECM structural unit, can be attributed to differences in fibril deformation modes: uncrimping when normal to the fiber axis, and laterally constrained compression when parallel to the fiber axis...
February 27, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28224064/anterior-horn-meniscal-repair-using-an-outside-in-suture-technique
#10
Travis J Menge, Chase S Dean, Jorge Chahla, Justin J Mitchell, Robert F LaPrade
The menisci are important structures within the knee that play a critical role in maintaining proper stability, load distribution, and joint lubrication. Injury to the menisci has been found to significantly alter the complex biomechanics of the knee, and thus affect the health and longevity of the native joint. Tears involving the anterior horn are increasingly recognized as an important pathology. Although early treatment of meniscal tears focused primarily on removal of the injured tissue, recent attention on the long-term consequences of partial or total meniscectomy has led to increased attempts at meniscus repair whenever possible...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28210945/mr-imaging-evaluation-of-the-postoperative-meniscus
#11
REVIEW
A Russo, R Capasso, C Varelli, A Laporta, M Carbone, G D'Agosto, S Giovine, M Zappia, A Reginelli
MR imaging has been widely evaluated in the assessment of patients with recurrent or residual symptoms following meniscal surgery. Importantly, the causes of such symptoms may relate to failure or complication of the surgical procedure, a possible recurrent or residual meniscal tear, or may be related to other causes of joint symptoms, including tears of the contralateral meniscus, or local hyaline cartilage, or marrow abnormalities subjacent to or distant to the meniscal surgical site. The complex diagnostic issues involved in the MR imaging evaluation of the postoperative meniscus were identified in early MR imaging studies...
February 16, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28186682/repair-of-torn-avascular-meniscal-cartilage-using-undifferentiated-autologous-mesenchymal-stem-cells-from-in-vitro-optimization-to-a-first-in-human-study
#12
Michael R Whitehouse, Nicholas R Howells, Michael C Parry, Eric Austin, Wael Kafienah, Kyla Brady, Allen E Goodship, Jonathan D Eldridge, Ashley W Blom, Anthony P Hollander
Meniscal cartilage tears are common and predispose to osteoarthritis (OA). Most occur in the avascular portion of the meniscus where current repair techniques usually fail. We described previously the use of undifferentiated autologous mesenchymal stem cells (MSCs) seeded onto a collagen scaffold (MSC/collagen-scaffold) to integrate meniscal tissues in vitro. Our objective was to translate this method into a cell therapy for patients with torn meniscus, with the long-term goal of delaying or preventing the onset of OA...
December 15, 2016: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28169595/tissue-derived-extracellular-matrix-bioscaffolds-emerging-applications-in-cartilage-and-meniscus-repair
#13
Farrah A Monibi, James L Cook
Musculoskeletal injuries are a common problem in orthopedic practice. Given the long-term consequences of unaddressed cartilage and meniscal pathology, a number of treatments have been attempted to stimulate repair or to replace the injured tissue. Despite advances in orthopedic surgery, effective treatments for cartilage and meniscus injuries remain a significant clinical challenge. Tissue engineering is a developing field that aims to regenerate injured tissues with a combination of cells, scaffolds, and signals...
March 7, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/28163243/long-term-assessment-of-meniscal-extrusion-after-meniscal-repair
#14
D Dujardin, R Siboni, L Kanagaratnam, P Boisrenoult, P Beaufils, N Pujol
BACKGROUND: Arthroscopic meniscal repair limits the medium-term risk of radiological osteoarthritis. Magnetic resonance imaging (MRI) cannot provide an accurate assessment of meniscal healing but may show harbingers of osteoarthritis such as meniscal extrusion. The objective of this study was to assess long-term meniscal extrusion after meniscal repair. HYPOTHESIS: Arthroscopic meniscal suture is not followed by meniscal extrusion and can, therefore, provide good knee function in the long-term...
February 3, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28161573/chondrogenically-primed-tonsil-derived-mesenchymal-stem-cells-encapsulated-in-riboflavin-induced-photocrosslinking-collagen-hyaluronic-acid-hydrogel-for-meniscus-tissue-repairs
#15
Rachel H Koh, Yinji Jin, Byung-Jae Kang, Nathaniel S Hwang
Current meniscus tissue repairing strategies involve partial or total meniscectomy, followed by allograft transplantation or synthetic material implantation. However, allografts and synthetic implants have major drawbacks such as the limited supply of grafts and lack of integration into host tissue, respectively. In this study, we investigated the effects of conditioned medium (CM) from meniscal fibrochondrocytes and TGF-β3 on tonsil-derived mesenchymal stem cells (T-MSCs) for meniscus tissue engineering. CM-expanded T-MSCs were encapsulated in riboflavin-induced photocrosslinked collagen-hyaluronic acid (COL-RF-HA) hydrogels and cultured in chondrogenic medium containing TGF-β3...
February 1, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28152576/evaluation-of-novel-biodegradable-three-armed-and-hyper-branched-tissue-adhesives-in-a-meniscus-explant-model
#16
A I Bochyńska, G Hannink, R Verhoeven, D W Grijpma, P Buma
Current treatment methods to repair meniscal tears do not bring fully satisfactory results. Tissue adhesives are considered promising alternatives, since they are easy to apply and cause minimal tissue trauma. The first aim of this study was to analyze the adhesive properties of and tissue response to two recently developed biodegradable block copolymeric three-armed- and hyper-branched tissue adhesives. The second aim was to investigate if tissue surface modification with collagenase improves the attachment of the adhesives and increases the healing potential of the tissue...
February 2, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28125675/a-special-tear-pattern-of-anterior-horn-of-the-lateral-meniscus-macerated-tear
#17
Jiapeng Zheng, Wenliang Zhai, Qiang Li, Qianxin Jia, Dasheng Lin
BACKGROUND: We describe a special, interesting phenomenon found in the anterior horn of the lateral meniscus (AHLM): most tear patterns in the AHLM are distinctive, with loose fibers in injured region and circumferential fiber bundles were separated. We name it as macerated tear. The goal of this study was to bring forward a new type of meniscal tear in the AHLM and investigate its clinical value. MATERIALS AND METHODS: AHLM tears underwent arthroscopic surgery from January 2012 to December 2014 were included...
2017: PloS One
https://www.readbyqxmd.com/read/28124287/biomechanical-testing-of-transcapsular-meniscal-repair
#18
Ryo Iuchi, Tatsuo Mae, Konsei Shino, Tomohiko Matsuo, Hideki Yoshikawa, Ken Nakata
BACKGROUND: All of previous biomechanical studies on meniscal repair have examined the meniscus itself without synovial membrane and capsule, although in the clinical setting, the meniscal repair is generally performed including capsule. Therefore, biomechanical properties of transcapsular meniscal repair are unclear. Thus, this study aimed to clarify the biomechanical properties of transcapsular meniscal repair. METHODS: In 70 porcine femur-medial meniscus-tibia complexes with capsules, longitudinal meniscal tears were repaired using different suture techniques (inside-out or all-inside technique), suture methods (vertical or horizontal methods), and numbers of sutures (single or double)...
December 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28102713/factors-associated-with-the-status-of-meniscal-tears-following-meniscal-repair-concomitant-with-anterior-cruciate-ligament-reconstruction
#19
Takehiko Matsushita, Kanto Nagai, Daisuke Araki, Toshikazu Tanaka, Tomoyuki Matsumoto, Kotaro Nishida, Masahiro Kurosaka, Ryosuke Kuroda
Purpose Anterior cruciate ligament (ACL) injuries are often accompanied by meniscal tears. Meniscal repair is typically performed during ACL reconstruction. However, retear of the meniscus after repair is frequent. The purpose of this study was to analyze the factors associated with meniscal healing after meniscal repair concomitant with ACL reconstruction. Materials and Methods Eighty-seven meniscal repairs in 87 patients who received meniscal repair combined with ACL reconstruction and received second-look arthroscopy at a mean of postoperatively 15...
January 19, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28095754/3d-co-culture-of-meniscal-cells-and-mesenchymal-stem-cells-in-collagen-type-i-hydrogel-on-a-small-intestinal-matrix-a-pilot-study-towards-equine-meniscus-tissue-engineering
#20
Antje Kremer, Iris Ribitsch, Jenny Reboredo, Julia Dürr, Monika Egerbacher, Florien Jenner, Heike Walles
Meniscal injuries are the most frequently encountered soft tissue injuries in the equine stifle joint. Due to the inherent limited repair potential of meniscal tissue, meniscal injuries do not only affect the meniscus itself but also lead to impaired joint homeostasis and secondary osteoarthritis. The presented study compares 3D co-culture constructs of primary equine mesenchymal stem cells (MSC) and meniscus cells (MC) seeded on three different scaffolds - a cell-laden collagen type I hydrogel (Col I gel), a tissue-derived small intestinal matrix scaffold (SIS-muc) and a combination thereof - for their qualification to be applied for meniscus tissue engineering...
January 18, 2017: Tissue Engineering. Part A
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