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medial collateral ligament

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https://www.readbyqxmd.com/read/27903163/ultrasound-imaging-of-ulnar-collateral-ligament-injury
#1
Arie J van Duijn, Shawn D Felton
The patient was an 18-year-old collegiate baseball pitcher who injured his right throwing elbow during an overhead slider pitch. As a part of a study, preinjury ultrasound images of the throwing arm were obtained 2 weeks prior to the injury. One day postinjury, repeat ultrasound imaging of the medial elbow was performed. The attending team physician ordered a magnetic resonance arthrogram 2 days after injury, which confirmed the presence of a complete tear of the ulnar collateral ligament. J Orthop Sports Phys Ther 2016;46(12):1086...
December 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27886839/medial-elbow-injuries-in-the-throwing-athlete
#2
REVIEW
Jimmy H Daruwalla, Charles A Daly, John G Seiler
Medial elbow injuries in the throwing athlete are common and increasing in frequency. They occur due to repetitive supraphysiologic forces acting on the elbow during the overhead throw. Overuse and inadequate rest are salient risk factors for injury. Most athletes improve substantially with rest and nonoperative treatment, although some athletes may require surgical intervention to return to play. Because of advances in conservative and surgical treatments, outcomes after medial elbow injury have improved over time...
February 2017: Hand Clinics
https://www.readbyqxmd.com/read/27880968/results-of-a-new-treatment-concept-for-concomitant-lesion-of-medial-collateral-ligament-in-patients-with-rupture-of-anterior-cruciate-ligament
#3
Fabian Blanke, Jochen Paul, Maximilian Haenle, Jannes Sailer, Geert Pagenstert, Lutz von Wehren, Stephan Vogt, Martin Majewski
Anteromedial knee injury with rupture of anterior cruciate ligament (ACL) and concomitant lesion of medial collateral ligament (MCL) is common in athletes. No standardized treatment concept can be found within the literature. This study presents results of a new treatment concept for concomitant MCL lesions in patients with ACL rupture. In this study, 67 recreational athletes with ACL injury and concomitant MCL lesion were treated according to a distinct treatment concept. Patients were classified in six different types of concomitant MCL lesion depending on grade of MCL lesion and presence of anteromedial rotatory instability (AMRI)...
November 23, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27876498/associated-lateral-medial-knee-instability-and-its-relevant-factors-in-anterior-cruciate-ligament-injured-knees
#4
Arata Yuuki, Takeshi Muneta, Toshiyuki Ohara, Ichiro Sekiya, Hideyuki Koga
BACKGROUND: Associations of lateral/medial knee instability with anterior cruciate ligament (ACL) injury have not been thoroughly investigated. The purposes of this study were to investigate whether lateral/medial knee instability is associated with ACL injury, and to clarify relevant factors for lateral/medial knee instability in ACL-injured knees. METHODS: One hundred and nineteen patients with unilateral ACL-injured knees were included. Lateral/medial knee instability was assessed with varus/valgus stress X-ray examination for both injured and uninjured knees by measuring varus/valgus angle, lateral/medial joint opening, and lateral/medial joint opening index...
November 19, 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/27872126/multiple-ligament-reconstruction-femoral-tunnels-intertunnel-relationships-and-guidelines-to-avoid-convergence
#5
Gilbert Moatshe, Alex W Brady, Erik L Slette, Jorge Chahla, Travis Lee Turnbull, Lars Engebretsen, Robert F LaPrade
BACKGROUND: Knee dislocations often require multiple concurrent ligament reconstructions, which involve creating several tunnels in the distal femur. Therefore, the risk of tunnel convergence is increased because of the limited bone volume within the distal aspect of the femur. PURPOSE: To assess the risk of tunnel convergence and determine the optimal reconstruction tunnel orientations for multiple ligament reconstructions in the femur. STUDY DESIGN: Descriptive laboratory study...
November 21, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27872124/incidence-mechanisms-and-severity-of-match-related-collegiate-men-s-soccer-injuries-on-fieldturf-and-natural-grass-surfaces-a-6-year-prospective-study
#6
Michael C Meyers
BACKGROUND: Numerous injuries have been attributed to playing on artificial turf. More recently, newer generations of artificial turf have been developed to duplicate the playing characteristics of natural grass. Although artificial turf has been deemed safer than natural grass in some studies, few long-term studies have been conducted comparing match-related collegiate soccer injuries between the 2 playing surfaces. HYPOTHESIS: Collegiate male soccer athletes do not experience any difference in the incidence, mechanisms, or severity of match-related injuries between FieldTurf and natural grass...
November 21, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27871663/surgical-management-and-treatment-of-the-anterior-cruciate-ligament-medial-collateral-ligament-injured-knee
#7
REVIEW
Kevin M Dale, James R Bailey, Claude T Moorman
The medial collateral ligament (MCL) is the most commonly injured ligament of the knee. The anterior cruciate ligament (ACL) is the most commonly injured ligament in conjunction with the MCL. Most MCL injuries can be treated nonoperatively, whereas the ACL often requires reconstruction. A good physical examination is essential for diagnosis, whereas radiographs and MRI of the knee confirm diagnosis and help guide treatment planning. Preoperative physical therapy should be completed before surgical management to allow for return of knee range of motion and an attempt at MCL healing...
January 2017: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/27830875/oblique-cord-chorda-obliqua-of-the-forearm-and-muscle-associated-fibrous-tissues-at-and-around-the-elbow-joint-a-study-of-human-fetal-specimens
#8
Zhe Wu Jin, Yu Jin, Masahito Yamamoto, Hiroshi Abe, Gen Murakami, Ting Feng Yan
In adults, the oblique cord or chorda obliqua separates the origins of the flexor pollicis longus (FPL) and flexor digitorum profundus (FDP) muscles from the supinator muscle and elbow joint. This study examined the topographic anatomy of the oblique cord and related muscles in fetuses. Semiserial sections of five mid-term fetuses of gestational age (GA) 14-16 weeks and 12 late-stage fetuses of GA 28-30 weeks were histologically examined and three forearms at GA 30 weeks were macroscopically evaluated. Late-stage fetuses showed a fascial structure between the supinator and FDP muscles...
November 10, 2016: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/27825417/evaluation-of-the-morphology-and-function-of-medial-collateral-ligament-aftertotal-knee-arthroplasty-with-high-frequency-ultrasound
#9
Ling Jiang, Yan-Qing Liu, Li-Gang Cui, Ying Meng, Hua Tian, Ke Zhang, Jin-Rui Wang
Objective To explore the feasibility and clinical value of ultrasonography in evaluating the morphology and function of medial collateral ligaments (MCL) after total knee arthroplasty (TKA). Methods Totally 38 patients undergoing routine KTA (group A) and 22 patients undergoing constrained condylar knee arthroplasty KTA with MCL injury (group B) were included. Long axis views of MCL were taken and the MCL thickness was measured on femur side and tibial side 1 cm away from the joint line, respectively. The thicknesses were compared between the two groups...
October 10, 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/27814945/reconstruction-of-medial-collateral-ligament-defects-with-a-flexor-pronator-fascia-patch-in-complete-open-release-of-stiff-elbows
#10
Shuai Chen, Hede Yan, Wei Wang, Mei Zhang, Kevin A Hildebrand, Cun-Yi Fan
BACKGROUND: Because medial elbow stability is essential for stiff elbow release, surgical techniques have been reported for reconstructing medial elbow stability. However, medial collateral ligament (MCL) defects, caused by inevitable detachment and resection performed for complete release, make the reconstruction more challenging. To our knowledge, no study has evaluated the outcomes after using a flexor-pronator fascia patch in medial elbow reconstruction for open release of stiff elbows...
November 2, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27802925/effects-of-suture-site-or-penetration-depth-on-anchor-location-in-all-inside-meniscal-repair
#11
Ryohei Uchida, Tatsuo Mae, Kunihiko Hiramatsu, Ryo Iuchi, Kazutaka Kinugasa, Konsei Shino, Hideki Yoshikawa, Ken Nakata
BACKGROUND: To evaluate the effects of suture site or penetration depth on anchor location in all-inside meniscal repair. METHODS: Eight fresh-frozen cadaveric knees were evaluated after meniscal repair using eight FasT-Fix360 (FF360) devices (Smith & Nephew Endoscopy, Andover, MA) (16 anchors) for each knee. The penetration depth was 14mm, the distance same from the periphery to insertion point, in four knees (Group A) and that in the remaining four knees (Group B) was 18mm...
December 2016: Knee
https://www.readbyqxmd.com/read/27800107/-post-traumatic-ossification-of-the-medial-collateral-ligament-of-the-knee-about-a-case
#12
Hafid Arabi, Hicham Sellahi
Heterotopic ossification is a pathological ossification of soft tissues. It is a benign, recurring disease with an unpredictable onset. We here report the case of a patient treated for a fracture of the left tibial tray with installation of a screwed plate. Two months after surgery the patient had a stiff left knee. Standard radiological examination showed ossification of the medial collateral ligament (MCL) confirmed by tomodensitometry. We do not currently know which factors determine the presence of tendon and ligamentous ossification...
2016: Pan African Medical Journal
https://www.readbyqxmd.com/read/27797605/quantitative-histological-grading-methods-to-assess-subchondral-bone-and-synovium-changes-subsequent-to-medial-meniscus-transection-in-the-rat
#13
Heidi E Kloefkorn, Kyle D Allen
AIM OF THE STUDY: The importance of the medial meniscus to knee health is demonstrated by studies which show meniscus injuries significantly increase the likelihood of developing osteoarthritis (OA), and knee OA can be modeled in rodents using simulated meniscus injuries. Traditionally, histological assessments of OA in these models have focused on damage to the articular cartilage; however, OA is now viewed as a disease of the entire joint as an organ system. The aim of this study was to develop quantitative histological measures of bone and synovial changes in a rat medial meniscus injury model of knee OA...
October 31, 2016: Connective Tissue Research
https://www.readbyqxmd.com/read/27787588/clinical-assessment-of-antero-medial-rotational-knee-laxity-a-systematic-review
#14
REVIEW
Dinesh Sirisena, Enrica Papi, Eleanor Tillett
PURPOSE: To inventory the examination methods available to assess antero-medial rotational laxity (AMRL) of the knee following medial collateral ligament injury. METHODS: Searches were conducted in accordance with the PRISMA guidelines and using four online databases: WEB OF SCIENCE, MEDLINE, EMBASE, and AMED. The Critical Appraisal Skills Programme guidelines for Diagnostic Test Studies were used for the quality assessment of the articles. RESULTS: A total of 2241 articles were identified from the database searches...
October 27, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27780652/morphology-of-the-insertions-of-the-superficial-medial-collateral-ligament-and-posterior-oblique-ligament-using-3-dimensional-computed-tomography-a-cadaveric-study
#15
Takaaki Saigo, Goro Tajima, Shuhei Kikuchi, Jun Yan, Moritaka Maruyama, Atsushi Sugawara, Minoru Doita
PURPOSE: To describe the insertions of the superficial medial collateral ligament (sMCL) and posterior oblique ligament (POL) and their related osseous landmarks. METHODS: Insertions of the sMCL and POL were identified and marked in 22 unpaired human cadaveric knees. The surface area, location, positional relations, and morphology of the sMCL and POL insertions and related osseous structures were analyzed on 3-dimensional images. RESULTS: The femoral insertion of the POL was located 18...
October 22, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27779640/aquaporin-1-contributes-to-chondrocyte-apoptosis-in-a-rat-model-of-osteoarthritis
#16
Hangfei Gao, Jiancao Gui, Liming Wang, Yan Xu, Yiqiu Jiang, Mingyue Xiong, Yongguang Cui
Aquaporins (AQPs) have been found to be associated with a number of diseases. However, the role of AQP‑1 in the pathogenesis of osteoarthritis remains unclear. We previously found that AQP‑1 expression was upregulated in osteoarthritic cartilage and strongly correlated with caspase‑3 expression and activity. The aim of this study was to further investigate the association of AQP‑1 expression with chondrocyte apoptosis in a rat model of osteoarthritis, using RNA interference to knock down AQP‑1. For this purspose, 72 male Sprague‑Dawley rats were randomly assigned to 3 groups as follows: the control group not treated surgically (n=24), the sham‑operated group (n=24), and the osteoarthritis group (n=24)...
October 24, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27765503/valgus-extension-overload-syndrome-in-adolescent-baseball-players-clinical-characteristics-and-surgical-outcomes
#17
Jin-Young Park, Hyun-Yul Yoo, Seok Won Chung, Seung-Jun Lee, Na Ra Kim, Se-Young Ki, Kyung-Soo Oh
BACKGROUND: Little is known about the clinical characteristics and surgical outcomes of valgus extension overload syndrome (VEOS) in adolescent athletes. We evaluated posteromedial compartment pathology, including combined lesions, and reported the surgical outcomes in adolescent baseball players. METHODS: We retrospectively reviewed the medical records of 13 male adolescent baseball players (mean age, 15.4 years) who underwent arthroscopic olecranon tip resection (n = 9) or staged operations (arthroscopic olecranon tip resection, followed by medial collateral ligament reconstruction 2 weeks later; n = 4)...
December 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27761222/comparative-analysis-of-surgical-options-for-medial-collateral-ligament-repair-in-terrible-triad-injury-of-the-elbow
#18
Taku Hatta, Shingo Nobuta, Toshitake Aizawa, Koichi Sasajima, Soichi Nakajima, Masahito Honda, Gosuke Oki, Yoshiaki Yamanaka, Eiji Itoi
The aim of our study is to evaluate the clinical and radiologic outcomes in patients with terrible triad injury, who underwent surgical treatment with or without the medial collateral ligament (MCL) repair. Fourteen patients who underwent surgery with a minimum of 12-month follow-up (mean, 17 months) were reviewed. Based on the systematic treatment protocol, radial head fracture, lateral collateral ligament, and coracoid fracture were treated. Subsequently, torn MCL was repaired in 7 patients, whereas in the remaining 7 patients, the MCL was not treated...
September 19, 2016: Orthopedic Reviews
https://www.readbyqxmd.com/read/27756901/a-novel-rabbit-model-of-early-osteoarthritis-exhibits-gradual-cartilage-degeneration-after-medial-collateral-ligament-transection-outside-the-joint-capsule
#19
Zhenlong Liu, Xiaoqing Hu, Zhentao Man, Jiying Zhang, Yanfang Jiang, Yingfang Ao
Though many surgical animal models have been used to induce osteoarthritis (OA) of the knee joint, they always open the capsule of the joint. Any surgical procedures that incises the capsule may cause inflammation, pain, and possibly altered gait. One common disadvantage of these surgically induced animal models is that they may affect the initial structures and synovial fluid in joint. These animal models may not be suitable for research into synovial fluid changes during early OA. This study aimed to create an animal model of early OA by resecting the medial collateral ligament (MCL) outside of the capsule...
October 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27737288/historical-patterns-and-variation-in-treatment-of-injuries-in-nfl-national-football-league-players-and-ncaa-national-collegiate-athletic-association-division-i-football-players
#20
Eric C McCarty, Matthew J Kraeutler, Paula Langner, Shane Cook, Byron Ellis, Jenna M Godfrey
We conducted a study to identify and contrast patterns in the treatment of common injuries that occur in National Football League (NFL) players and National Collegiate Athletic Association (NCAA) Division I football players. Orthopedic team physicians for all 32 NFL and 119 NCAA Division I football teams were asked to complete a survey regarding demographics and preferred treatment of a variety of injuries encountered in football players. Responses were received from 31 (97%) of the 32 NFL and 111 (93%) of the 119 NCAA team physicians...
September 2016: American Journal of Orthopedics
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