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https://www.readbyqxmd.com/read/28634621/role-of-mri-in-predicting-meniscal-tear-reparability
#1
Paolo Florent Felisaz, Francesco Alessandrino, Simone Perelli, Giacomo Zanon, Francesco Benazzo, Fabrizio Calliada, Luigi Sammarchi
OBJECTIVE: To elucidate the role of MRI in predicting meniscal tear reparability according to tear type and location in relation to vascular zones. MATERIALS AND METHODS: In this retrospective study, two readers evaluated 79 pre-surgical MRIs of meniscal tears arthroscopically treated with meniscectomy or meniscal repair. Tears were classified according to type into vertical, horizontal, radial, complex, flaps and bucket handle and were considered reparable if the distance measured from the tear to the menisco-capsular junction was less than or equal to 5 mm...
June 20, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28632455/joint-preservation-techniques-in-orthopaedic-surgery
#2
Philip J York, Frank B Wydra, Matthew E Belton, Armando F Vidal
CONTEXT: With increasing life expectancy, there is growing demand for preservation of native articular cartilage to delay joint arthroplasties, especially in younger, active patients. Damage to the hyaline cartilage of a joint has a limited intrinsic capacity to heal. This can lead to accelerated degeneration of the joint and early-onset osteoarthritis. Treatment in the past was limited, however, and surgical treatment options continue to evolve that may allow restoration of the natural biology of the articular cartilage...
June 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28631112/risk-of-revision-was-not-reduced-by-a-double-bundle-acl-reconstruction-technique-results-from-the-scandinavian-registers
#3
Cathrine Aga, Jüri-Tomas Kartus, Martin Lind, Stein Håkon Låstad Lygre, Lars-Petter Granan, Lars Engebretsen
BACKGROUND: Double-bundle anterior cruciate ligament (ACL) reconstruction has demonstrated improved biomechanical properties and moderately better objective outcomes compared with single-bundle reconstructions. This could make an impact on the rerupture rate and reduce the risk of revisions in patients undergoing double-bundle ACL reconstruction compared with patients reconstructed with a traditional single-bundle technique. The National Knee Ligament Registers in Scandinavia provide information that can be used to evaluate the revision outcome after ACL reconstructions...
June 19, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28622089/large-animal-models-of-meniscus-repair-and-regeneration-a-systematic-review-of-the-state-of-the-field
#4
Sonia Bansal, Niobra M Keah, Alexander L Neuwirth, Olivia O'Reilly, Feini Qu, Breanna Seiber, Sai Mandalapu, Robert Leon Mauck, Miltiadis Zgonis
Injury to the meniscus is common but few viable strategies exist for its repair or regeneration. To address this, animal models have been developed to translate new treatment strategies towards the clinic. However, there is not yet a regulatory document guiding such studies. The purpose of this study was to carry out a systematic review of the literature on meniscus treatment methods and outcomes to define the state of the field. Public databases were queried using search terms related to animal models and meniscus injury and/or repair over the years 1980-2015...
June 16, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28621599/comparison-of-ultrasonography-and-magnetic-resonance-imaging-to-arthroscopy-for-diagnosing-medial-meniscal-lesions-in-dogs-with-cranial-cruciate-ligament-deficiency
#5
Samuel P Franklin, James L Cook, Cristi R Cook, Layla S Shaikh, Kevin M Clarke, Shannon P Holmes
OBJECTIVE To compare the accuracy of ultrasonography and MRI for diagnosing medial meniscal lesions in dogs with cranial cruciate ligament (CCL) deficiency. DESIGN Diagnostic test evaluation. ANIMALS 26 dogs (31 stifle joints) with CCL deficiency. PROCEDURES A single surgeon physically examined each dog and performed ultrasonography and arthroscopy of affected stifle joints to identify medial meniscal lesions. Video recordings of the arthroscopic procedure were saved and subsequently reviewed by the same surgeon and by a second surgeon working independently and blinded to results of all examinations...
July 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28615215/deconstructing-a-popular-myth-why-knee-arthroscopy-is-no-better-than-placebo-surgery-for-degenerative-meniscal-tears
#6
Jonas Bloch Thorlund
No abstract text is available yet for this article.
June 14, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28610487/establishment-of-novel-meniscal-scaffold-structures-using-polyglycolic-and-poly-l-lactic-acids
#7
Tomohiko Murakami, Shuhei Otsuki, Kosuke Nakagawa, Yoshinori Okamoto, Tae Inoue, Yuki Sakamoto, Hideki Sato, Masashi Neo
The purpose of this study was to evaluate various types of meniscus scaffolds that mimic the meniscus structure, and to establish a novel cell-free meniscus scaffold with polyglycolic acid or poly-l-lactic acid. Four types of scaffolds were implanted into Japanese white rabbits: poly-l-lactic acid sponge poly-l-lactic acid, PGA-coated PLLA sponge, PGA lamination, and film-coated PGA lamination. Samples were harvested at 8 and 12 weeks after implantation, and a compression stress test was performed. The meniscus size and Ishida scores were evaluated for regenerated tissue...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28610433/reoperation-rates-after-combined-anterior-cruciate-ligament-and-anterolateral-ligament-reconstruction-a-series-of-548-patients-from-the-santi-study-group-with-a-minimum-follow-up-of-2-years
#8
Mathieu Thaunat, Gilles Clowez, Adnan Saithna, Maxime Cavalier, Eric Choudja, Thais D Vieira, Jean-Marie Fayard, Bertrand Sonnery-Cottet
BACKGROUND: Early clinical results of anterolateral ligament (ALL) reconstruction are promising, but concerns exist due to high rates of complications after other types of lateral extra-articular tenodesis. The rate of surgery after combined anterior cruciate ligament (ACL) and ALL reconstruction is not known. PURPOSE: To determine the rate of reoperation after combined ACL and ALL reconstruction. STUDY DESIGN: Case series; Level of evidence, 4...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28609637/midterm-and-long-term-results-of-medial-versus-lateral-meniscal-allograft-transplantation-a-meta-analysis
#9
Seong-Il Bin, Kyung-Wook Nha, Ji-Young Cheong, Young-Soo Shin
BACKGROUND: It is unclear whether lateral meniscal allograft transplantation (MAT) procedures lead to better clinical outcomes than medial MAT. HYPOTHESIS: The survival rates are similar between medial and lateral MAT, but the clinical outcomes of lateral MAT are better than those of medial MAT at final follow-up. STUDY DESIGN: Meta-analysis. METHODS: In this meta-analysis, we reviewed studies that assessed survival rates in patients who underwent medial or lateral MAT with more than 5 years of follow-up and that used assessments such as pain and Lysholm scores to compare postoperative scores on knee outcome scales...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28607768/platelet-rich-plasma-prp-for-knee-disorders
#10
REVIEW
Mohammad Shahid, Rik Kundra
Platelet-rich plasma (PRP) is an autologous blood product with platelet concentrations above baseline values. The process involves the extraction of blood from the patient which is then centrifuged to obtain a concentrated suspension of platelets by plasmapheresis. It then undergoes a two-stage centrifugation process to separate the solid and liquid components of the anticoagulated blood. PRP owes its therapeutic use to the growth factors released by the platelets which are claimed to possess multiple regenerative properties...
January 2017: EFORT open reviews
https://www.readbyqxmd.com/read/28599660/does-the-location-of-placement-of-meniscal-sutures-have-a-clinical-effect-in-the-all-inside-repair-of-meniscocapsular-tears
#11
Uğur Tiftikçi, Sancar Serbest
BACKGROUND: Meniscocapsular separation (MCS) is a lesion of the area which is attached from the peripheral section of the meniscus to the capsule and is seen less often than other meniscus injuries. The aim of this study was to investigate which of the different side applications of all-inside MCS repair of the meniscus was better in respect of clinical and functional results. METHODS: In this retrospective study, 53 patients with MCS pattern in their knee joints were treated with arthroscopic meniscus repair made with the all-inside method...
June 9, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/28598834/do-cell-based-tissue-engineering-products-for-meniscus-regeneration-influence-vascularization
#12
Matthias Koch, Tobias Ehrenreich, Gudrun Koehl, Girish Pattappa, Christian Pfeifer, Markus Loibl, Michael Müller, Michael Nerlich, Peter Angele, Johannes Zellner
BACKGROUND: Meniscus regeneration is observed within the peripheral, vascularized zone but decreases in the inner two thirds alongside the vascularization. Within this avascular area, cell-based tissue-engineering-approaches appears to be a promising strategy for the treatment of meniscal defects. OBJECTIVE: Evaluation of the angiogenic potential of cell-based tissue-engineering-products for meniscus healing. METHODS: Evaluation of angiogenesis induced by rabbit meniscus-pellets, meniscus-cells (MC) or mesenchymal stem-cells (MSC) in cell-based tissue-engineering-products within a rabbit meniscus-ring was performed using a transparent dorsal skin fold chamber in nude mice...
June 7, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28594528/international-perspective-on-revision-anterior-cruciate-ligament-reconstruction-what-have-we-been-missing
#13
Mohammad Humza Ansari, Steven Claes, Daniel C Wascher, Philippe Neyret, Michael J Stuart, Aaron J Krych
Primary anterior cruciate ligament (ACL) reconstruction is a common orthopaedic procedure. A graft failure rate of 5% to 10% after primary ACL reconstruction has resulted in an increased need for revision ACL reconstruction. ACL reconstruction failure etiologies include trauma, technical errors, and biologic factors. Based on the current literature, the outcomes of revision ACL reconstruction are clearly inferior compared with those of primary reconstruction. A thorough patient evaluation, including surgical history, a physical examination, and imaging studies, is crucial in the assessment of a failed ACL reconstruction...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28594522/skeletally-immature-anterior-cruciate-ligament-injuries-controversies-and-management
#14
Shital N Parikh, Bradley P Jaquith, Christopher M Brusalis, Lauren H Redler, Theodore J Ganley, Mininder S Kocher
At one time, anterior cruciate ligament (ACL) tears in skeletally immature patients were considered rare. The recommended treatment option for skeletally immature patients with ACL tears was to modify activities until skeletal maturity, at which point definitive ACL reconstruction could be safely performed. The management of ACL tears in skeletally immature patients has evolved as a result of the increased frequency of ACL tears in younger patients and an increased awareness for the potential development or worsening of meniscal tears, chondral lesions, and degenerative changes that occur with the "wait-and-fix-later" approach...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28590381/performance-of-promis-for-healthy-patients-undergoing-meniscal-surgery
#15
Kyle J Hancock, Natalie Glass, Chris A Anthony, Carolyn M Hettrich, John Albright, Annunziato Amendola, Brian R Wolf, Matthew Bollier
BACKGROUND: The Patient-Reported Outcomes Measurement Information System (PROMIS) was developed as an extensive question bank with multiple health domains that could be utilized for computerized adaptive testing (CAT). In the present study, we investigated the use of the PROMIS Physical Function CAT (PROMIS PF CAT) in an otherwise healthy population scheduled to undergo surgery for meniscal injury with the hypotheses that (1) the PROMIS PF CAT would correlate strongly with patient-reported outcome instruments that measure physical function and would not correlate strongly with those that measure other health domains, (2) there would be no ceiling effects, and (3) the test burden would be significantly less than that of the traditional measures...
June 7, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28589161/arthroscopic-mechanical-chondroplasty-of-the-knee-is-beneficial-for-treatment-of-focal-cartilage-lesions-in-the-absence-of-concurrent-pathology
#16
Devon E Anderson, Michael B Rose, Aaron J Wille, Jack Wiedrick, Dennis C Crawford
BACKGROUND: Articular cartilage lacks the ability for intrinsic repair after acute injury, and focal articular cartilage lesions cause significant morbidity worldwide. Arthroscopic debridement (chondroplasty) represents the majority of cartilage procedures of the knee; however, limited data exist regarding outcomes after chondroplasty performed in isolation of concurrent procedures or not as a primary treatment for osteoarthritis (OA). HYPOTHESIS: Arthroscopic mechanical chondroplasty is beneficial for patients with a focal cartilage lesion of the knee in the absence of meniscal pathology or OA...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28589159/demographics-and-injuries-associated-with-knee-dislocation-a-prospective-review-of-303-patients
#17
Gilbert Moatshe, Grant J Dornan, Sverre Løken, Tom C Ludvigsen, Robert F LaPrade, Lars Engebretsen
BACKGROUND: Information on the incidence, injury mechanisms, ligament injury patterns, and associated injuries of knee dislocations is lacking in the literature. There is a need to characterize ligament injury patterns and associated injuries in knee dislocations to avoid missing common associated diagnoses and to plan surgical treatment. PURPOSE: To evaluate patient demographics, ligament injury patterns and associated injury patterns, and associated injuries in patients with knee dislocation...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28580627/age-related-modulation-of-angiogenesis-regulating-factors-in-the-swine-meniscus
#18
Alessia Di Giancamillo, Daniela Deponti, Silvia Modina, Irene Tessaro, Cinzia Domeneghini, Giuseppe Maria Peretti
An in-depth knowledge of the native meniscus morphology and biomechanics in its different areas is essential to develop an engineered tissue. Meniscus is characterized by a great regional variation in extracellular matrix components and in vascularization. Then, the aim of this work was to characterize the expression of factors involved in angiogenesis in different areas during meniscus maturation in pigs. The menisci were removed from the knee joints of neonatal, young and adult pigs, and they were divided into the inner, intermediate and outer areas...
June 4, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28580271/meniscal-allograft-transplantation-with-soft-tissue-in-bone-socket-fixation-arthroscopic-technique-with-technical-pearls
#19
Troy A Roberson, Douglas J Wyland
Meniscal allograft transplantation may slow the progression of degenerative changes in the meniscus-deficient knee. The current literature suggests patients can experience good early to mid-term satisfaction and patient-reported outcomes with reasonable expectations of return to work. More ambitious applications in athletes have also shown good results although long-term data are lacking. Traditionally, meniscal allograft transplantation has been considered an open procedure with incorporation of bone blocks from the allograft source...
April 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28580268/endoscopic-resection-of-medial-extra-articular-cysts-of-the-knee
#20
Tun Hing Lui
Although most of the parameniscal cysts are very small and asymptomatic, some of them can present with a painful mass or snapping knee. Because parameniscal cysts are almost always associated with horizontal meniscal tears, arthroscopic partial meniscectomy of the involved part of meniscus and intra-articular cyst drainage has become the most accepted procedure. However, arthroscopic cyst decompression through partial meniscectomy to the meniscocapsular junction to expose the communication between the cyst and the knee joint may sacrifice some of the healthy parts of the meniscus especially when meniscal tear is peripheral...
April 2017: Arthroscopy Techniques
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