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https://www.readbyqxmd.com/read/29906783/clinical-value-of-pointwise-encoding-time-reduction-with-radial-acquisition-petra-mr-sequence-in-assessing-internal-derangement-of-knee
#1
Sung Kwan Kim, Donghyun Kim, Sun Joo Lee, Hye Jung Choo, Minkyung Oh, Yohan Son, MunYoung Paek
PURPOSE: The purpose was to evaluate the clinical value of PETRA sequence for the diagnosis of internal derangement of the knee. MATERIALS AND METHODS: The major structures of the knee in 34 patients were evaluated and compared among conventional MRI findings, PETRA images, and arthroscopic findings. RESULTS: The specificities of PETRA with 2D FSE sequence were higher for meniscal lesions than those obtained when using 2D FSE alone. CONCLUSION: Using PETRA images along with conventional 2D FSE images can increase the accuracy of assessing internal derangements of the knee and, specifically, meniscal lesions...
June 1, 2018: Clinical Imaging
https://www.readbyqxmd.com/read/29901022/computer-assisted-joint-space-area-measurement-a-new-technique-in-patients-with-knee-osteoarthritis
#2
İlker Ilhanli, Necip Güder, Alptekin Tosun, Esin Avci, Canan Çelik
Objectives: This study aims to assess the validity and reproducibility of computer-assisted joint space area measurement in knee roentgenograms of patients with knee osteoarthritis and compare it with a qualitative method in knee roentgenograms and quantitative and semi-quantitative methods in magnetic resonance imaging. Patients and methods: The study included 40 knees of 40 patients diagnosed as osteoarthritis (14 males, 26 females; mean age 57.4±5.9 years; range 47 to 67 years)...
December 2017: Archives of Rheumatology
https://www.readbyqxmd.com/read/29899552/the-radiated-deep-frozen-xenogenic-meniscal-tissue-regenerated-the-total-meniscus-with-chondroprotection
#3
Dong Jiang, Zheng-Zheng Zhang, Feng Zhao, Shao-Jie Wang, Yan-Song Qi, Li-Heng Zhao, Ji-Ying Zhang, Jia-Kuo Yu
Meniscal allograft transplantation yields good and excellent results but is limited by donor availability. The purpose of the study was to evaluate the effectiveness of radiated deep-frozen xenogenic meniscal tissue (RDF-X) as an alternative graft choice in meniscal transplantation. The xenogenic meniscal tissues were harvested from the inner 1/3 part of the porcine meniscus and then irradiated and deeply frozen. The medial menisci of rabbits were replaced by the RDF-X. Meniscal allograft transplantation, meniscectomy and sham operation served as controls...
June 13, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29897012/biomechanical-stimulus-based-strategies-for-meniscus-tissue-engineering-and-regeneration
#4
Mingxue Chen, Weimin Guo, Shuang Gao, Chunxiang Hao, Shi Shen, ZengZeng Zhang, Zehao Wang, Xu Li, Xiaoguang Jing, Xueliang Zhang, Zhiguo Yuan, Mingjie Wang, Yu Zhang, Jiang Peng, Aiyuan Wang, Yu Wang, Sui Xiang, Shuyun Liu, Quanyi Guo
Meniscus injuries are very common in the knee joint. Treating a damaged meniscus continues to be a scientific challenge in sport medicine because of its poor self-healing potential and few clinical therapeutic options. Tissue engineering strategies are very promising solutions for repairing and regenerating a damaged meniscus. Meniscus is exposed to a complex biomechanical microenvironment, and it plays a crucial role in meniscal development, growth, and repairing. Over the past decades, increasing attention has been focused on the use of biomechanical stimulus to enhance biomechanical properties of the engineered meniscus...
June 13, 2018: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/29886437/prevalence-of-knee-osteoarthritis-features-on-magnetic-resonance-imaging-in-asymptomatic-uninjured-adults-a-systematic-review-and-meta-analysis
#5
REVIEW
Adam G Culvenor, Britt Elin Øiestad, Harvi F Hart, Joshua J Stefanik, Ali Guermazi, Kay M Crossley
BACKGROUND: Knee MRI is increasingly used to inform clinical management. Features associated with osteoarthritis are often present in asymptomatic uninjured knees; however, the estimated prevalence varies substantially between studies. We performed a systematic review with meta-analysis to provide summary estimates of the prevalence of MRI features of osteoarthritis in asymptomatic uninjured knees. METHODS: We searched six electronic databases for studies reporting MRI osteoarthritis feature prevalence (ie, cartilage defects, meniscal tears, bone marrow lesions and osteophytes) in asymptomatic uninjured knees...
June 9, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29883509/avulsion-of-the-anterior-lateral-meniscal-root-secondary-to-tibial-eminence-fracture
#6
Travis J Menge, Jorge Chahla, Justin J Mitchell, Chase S Dean, Robert F LaPrade
The lateral tibial eminence shares a close relationship with the anterior root of the lateral meniscus. Limited studies have reported traumatic injury to the anterior meniscal roots in the setting of tibial eminence fractures, and reported rates of occurrence of concomitant meniscal and chondral injuries vary widely. The purpose of this article is to describe the case of a 28-year-old woman who had a complete avulsion of the anterolateral meniscal root caused by a tibial eminence fracture with resultant malunion and root displacement...
May 2018: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29881886/greater-magnitude-tibiofemoral-contact-forces-are-associated-with-reduced-prevalence-of-osteochondral-pathologies-2-3-years-following-anterior-cruciate-ligament-reconstruction
#7
David John Saxby, Adam L Bryant, Ans Van Ginckel, Yuanyuan Wang, Xinyang Wang, Luca Modenese, Pauline Gerus, Jason M Konrath, Karine Fortin, Tim V Wrigley, Kim L Bennell, Flavia M Cicuttini, Christopher Vertullo, Julian A Feller, Tim Whitehead, Price Gallie, David G Lloyd
PURPOSE: External loading of osteoarthritic and healthy knees correlates with current and future osteochondral tissue state. These relationships have not been examined following anterior cruciate ligament reconstruction. We hypothesised greater magnitude tibiofemoral contact forces were related to increased prevalence of osteochondral pathologies, and these relationships were exacerbated by concomitant meniscal injury. METHODS: This was a cross-sectional study of 100 individuals (29...
June 7, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29881699/meniscal-ramp-lesion-repair-using-an-all-inside-technique
#8
Roberto Negrín, Nicolás O Reyes, Magaly Iñiguez, Juan José Pellegrini, Mauricio Wainer, Jaime Duboy
Posteromedial meniscotibial ligament lesions, known as meniscal ramp lesions, are typically associated with ACL injuries, but frequently underdiagnosed. When correctly diagnosed, repair is mandatory in most cases. Retraction of the soft tissues makes it difficult to repair and leads to suture failure. Previously described techniques include all-inside and inside-out meniscal sutures, but do not ensure correct meniscotibial closure because of the soft tissue retraction. The purpose of this Technical Note is to describe a meniscal ramp lesion arthroscopic repair with an all-inside technique with the Fast-Fix 360 device, detailing the use of the accessory posteromedial portal, and the addition of an arthroscopic grasper that raises the retracted meniscotibial ligament, to allow correct fixation...
March 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29881698/repair-of-a-chronic-large-meniscal-defect-with-implantation-of-autogenous-meniscal-fragments-using-a-tubular-shaped-fibrin-clot
#9
Tamiko Kamimura, Masashi Kimura
We present a technique to implant autogenous meniscal fragments using a fibrin clot to repair a large degenerative meniscal defect. A total of 25 mL of the patient's blood is agitated for 10 minutes using a stainless steel swizzle stick in a sterile glass syringe. The elastic fibrin clot subsequently adheres to the stick in a tubular manner. Using arthroscopic debridement, native meniscal tissue is resected. The meniscal fragments are packaged into the tubular-shaped fibrin clot, and the tube is tied at both ends using 4-0 absorbable sutures...
March 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29881226/the-use-of-platelet-rich-fibrin-with-platelet-rich-plasma-support-meniscal-repair-surgery
#10
Masahiko Kemmochi, Shigeru Sasaki, Masako Takahashi, Tomitaka Nishimura, Chisa Aizawa, Jun Kikuchi
Introduction: Platelet-rich fibrin (PRF) is the only autologous blood product that releases growth factors and has scaffolding properties. We hypothesized that the use of PRF and Platelet-rich plasma (PRP) would improve operative results, including the recovery of function and repaired meniscus. Materials and Methods: Seventeen patients underwent arthroscopic meniscus repair with PRF and PRP (PRF group) using our novel device for the injection of the PRF into the joint...
June 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29881203/long-term-outcome-after-all-inside-meniscal-repair-using-the-fast-fix-system
#11
Alexander Zimmerer, Christian Sobau, Rainer Nietschke, Marco Schneider, Andree Ellermann
Purpose: Meniscal surgery is one of the most performed orthopaedic procedures. Because of its chondroprotective properties, meniscal repair should be attempted whenever possible. Several techniques are described in literature, e.g. all-inside repair using FasT-Fix System from Smith & Nephew. The aim of this study was to evaluate the outcome at a minimum of 12 years following meniscal repair using FasT-Fix System. Materials and Methods: Patients who underwent meniscal repair using FasT-Fix System in the time from 2001 to 2003 were analyzed...
June 2018: Journal of Orthopaedics
https://www.readbyqxmd.com/read/29879063/total-resection-of-any-segment-of-the-lateral-meniscus-may-cause-early-cartilage-degeneration-evaluation-by-magnetic-resonance-imaging-using-t2-mapping
#12
Koji Murakami, Yuji Arai, Kazuya Ikoma, Kammei Kato, Hiroaki Inoue, Shuji Nakagawa, Yuta Fujii, Keiichiro Ueshima, Hiroyoshi Fujiwara, Toshikazu Kubo
The aim of this study was to perform quantitative evaluation of degeneration of joint cartilage using T2 mapping in magnetic resonance imaging (MRI) after arthroscopic partial resection of the lateral meniscus.The subjects were 21 patients (23 knees) treated with arthroscopic partial resection of the lateral meniscus. MRI was performed for all knees before surgery and 6 months after surgery to evaluate the center of the lateral condyle of the femur in sagittal images for T2 mapping. Ten regions of interest (ROIs) on the articular cartilage were established at 10-degree intervals, from the point at which the femur shaft crossed the lateral femoral condyle joint to the articular cartilage 90° relative to the femur shaft...
June 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29877944/arthroscopic-treatment-of-pediatric-fractures
#13
Franck Accadbled, Daniel N'Dele
Management of pediatric articular fractures has evolved over the years with a growing interest in arthroscopic handling. Several factors account for this recent appeal among which are progress in technology with increased availability of diagnostic methods, rise in athletic activities responsible for these fractures, and pediatric orthopaedic surgeons getting familiar with arthroscopic techniques. In our institution, 9 of 100 arthroscopic procedures are performed as a consequence of an articular fracture. In total, 80% of the fractures concern the knee (56% of tibial eminence fracture, 24% osteochondral fracture)...
July 2018: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/29876862/earlier-anterior-cruciate-ligament-reconstruction-is-associated-with-a-decreased-risk-of-medial-meniscal-and-articular-cartilage-damage-in-children-and-adolescents-a-systematic-review-and-meta-analysis
#14
REVIEW
Jeffrey Kay, Muzammil Memon, Ajay Shah, Yi-Meng Yen, Kristian Samuelsson, Devin Peterson, Nicole Simunovic, Helene Flageole, Olufemi R Ayeni
PURPOSE: To evaluate the association between surgical timing and the incidence of secondary meniscal or chondral damage in children and adolescents with anterior cruciate ligament (ACL) ruptures. METHODS: Three electronic databases, PubMed, MEDLINE, and EMBASE, were systematically searched from database inception until October 16, 2017 by two reviewers independently and in duplicate. The inclusion criteria were English language studies that reported the incidence of meniscal and articular cartilage damage in children or adolescent athletes with ACL injuries as well as the timing of their ACL reconstruction (ACLR)...
June 6, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29876703/clinical-indications-for-musculoskeletal-ultrasound-updated-in-2017-by-european-society-of-musculoskeletal-radiology-essr-consensus
#15
Luca Maria Sconfienza, Domenico Albano, Georgina Allen, Alberto Bazzocchi, Bianca Bignotti, Vito Chianca, Fernando Facal de Castro, Elena E Drakonaki, Elena Gallardo, Jan Gielen, Andrea Sabine Klauser, Carlo Martinoli, Giovanni Mauri, Eugene McNally, Carmelo Messina, Rebeca Mirón Mombiela, Davide Orlandi, Athena Plagou, Magdalena Posadzy, Rosa de la Puente, Monique Reijnierse, Federica Rossi, Saulius Rutkauskas, Ziga Snoj, Jelena Vucetic, David Wilson, Alberto Stefano Tagliafico
OBJECTIVES: To update the 2012 European Society of Musculoskeletal Radiology (ESSR) clinical consensus guidelines for musculoskeletal ultrasound referral in Europe. METHODS: Twenty-one musculoskeletal imaging experts from the ESSR participated in a consensus study based on a Delphic process. Two independent (non-voting) authors facilitated the procedure and resolved doubtful issues. Updated musculoskeletal ultrasound literature up to July 2017 was scored for shoulder, elbow, wrist/hand, hip, knee, and ankle/foot...
June 6, 2018: European Radiology
https://www.readbyqxmd.com/read/29876497/neglected-semimembranosus-osteochondral-avulsion-fracture-of-the-posteromedial-tibial-plateau
#16
Rakesh John, Devendra K Chouhan, Mandeep Singh Dhillon
Semimembranosus avulsion fracture is infrequently reported and is easy to miss on plain radiographs; the mechanism of injury is highly controversial. Initial reports linked it to anterior cruciate ligament and medial meniscal tears. We report an osteochondral semimembranosus avulsion fracture of the posteromedial tibial plateau with associated posterior cruciate ligament rupture. Also described is a novel surgical fixation technique for such osteochondral fractures where the surgical exposure is limited due to the obliquity of the fracture line resulting in a greater involvement of the articular cartilage than the small bony component...
June 2018: Trauma Case Reports
https://www.readbyqxmd.com/read/29872868/meniscal-root-tears-occur-frequently-in-multi-ligament-knee-injury-and-can-be-predicted-by-associated-mri-injury-patterns
#17
Jonathan D Kosy, Luigi Matteliano, Anshul Rastogi, Dawn Pearce, Daniel B Whelan
PURPOSE: The frequency of meniscal root tears in association with multi-ligament knee injury has not been established but adds to the complexity of surgical reconstruction and may have long-term consequences. Therefore, identifying root tears, on preoperative imaging, is important. The aim of this study was to identify the frequency of meniscal root tears, on preoperative magnetic resonance imaging, following multi-ligament injury and distinguish associated injury patterns that may aid detection...
June 5, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29868434/arthroscopic-medial-meniscus-root-repair-with-soft-suture-anchor-without-posterior-portal-technique
#18
Somsak Kuptniratsaikul, Thun Itthipanichpong, Vanasiri Kuptniratsaikul
Medial meniscal root injury is known to cause an increase in tibiofemoral contact pressure and results in early osteoarthritis. There have been many reports on meniscal root repairing techniques, which can be categorized into 2 groups. One is transosseous suture, and the other is anchor suture repair. Both techniques show improvement in not only clinical performance, but also radiographic finding. However, the meniscal root repair procedure must be performed by experienced physicians. Most techniques require a posteromedial portal, which takes time and may even complicate the procedure...
May 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29868427/suture-anchor-refixation-of-meniscal-root-tears-without-an-additional-portal
#19
Maurice Balke, Ralph Akoto, Christoph Offerhaus, Juergen Hoeher
The biomechanical consequences of a tear of the posterior root of the medial meniscus are comparable to that of a complete meniscectomy. The integrity of the meniscal roots is crucial to enable the important function of load sharing and shock absorption. An untreated root tear leads to extrusion and loss of function of the meniscus causing early degenerative arthritis of the respective knee compartment. Meniscal root repair can be achieved by 2 main techniques: indirect fixation using pullout sutures through a transtibial tunnel with extracortical fixation and direct fixation using suture anchors...
May 2018: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29852515/quality-and-variability-of-online-physical-therapy-protocols-for-isolated-meniscal-repairs
#20
David P Trofa, Robert L Parisien, Manish S Noticewala, Peter C Noback, Christopher S Ahmad, Vasilios Moutzouros, Eric C Makhni
The ideal meniscal repair postoperative rehabilitation protocol has yet to be determined. Further, patients are attempting to access health care content online at a precipitously increasing rate given the efficiency of modern search engines. The purpose of this investigation was to assess the quality and variability of meniscal repair rehabilitation protocols published online with the hypothesis that there would be a high degree of variability found across available protocols. To this end, Web-based meniscal repair physical therapy protocols from U...
May 31, 2018: Journal of Knee Surgery
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