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Posterior ligament reconstruction

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https://www.readbyqxmd.com/read/29144991/finite-element-simulation-on-posterior-tibial-tendinopathy-load-transfer-alteration-and-implications-to-the-onset-of-pes-planus
#1
Duo Wai-Chi Wong, Yan Wang, Aaron Kam-Lun Leung, Ming Yang, Ming Zhang
BACKGROUND: Posterior tibial tendinopathy is a challenging foot condition resulting in pes planus, which is difficult to diagnose in the early stage. Prior to the deformity, abnormal internal load transfer and soft tissue attenuation are anticipated. The objective of this study was to investigate the internal load transfer and strain of the ligaments with posterior tibial tendinopathy, and the implications to pes planus and other deformities. METHODS: A three-dimensional finite element model of the foot and ankle was reconstructed from magnetic resonance images of a 28-year-old normal female...
November 3, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29133151/laparoscopic-management-of-a-rudimentary-uterine-horn
#2
Emilie Faller, Jean Jacques Baldauf, François Becmeur, Anne Lehn, Cherif Youssef Akladios, Lise Lecointre
STUDY OBJECTIVE: To demonstrate a technique of laparoscopic management of a rudimentary horn in a 12-year-old girl. DESIGN: A step-by-step explanation of the surgery using video (instructive video), approved the local institutional Review Board. SETTING: A university hospital, University Hospital of Strasbourg, France. PATIENT: A 12-year-old girl with a uterine rudimentary horn. INTERVENTION: We describe the case of a 12 years old girl who had no medical history...
November 10, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29126953/radiological-risk-factors-for-progression-of-ossification-of-posterior-longitudinal-ligament-following-laminoplasty
#3
Dong-Ho Lee, Jae Hwan Cho, Nam-Heun Kim, Sunghoo Kim, Jeonghyun Choi, Chang Ju Hwang, Choon Sung Lee
BACKGROUND CONTEXT: Research shows the progression of OPLL following decompressive surgery for cervical myelopathy, particularly in cases presenting with continuous or mixed radiographic types. To date, no study has investigated OPLL progression within each motion segment. PURPOSE: To evaluate progression of cervical ossification of the posterior longitudinal ligament (OPLL) in each motion segment using a novel system of classification, and to identify risk factors for OPLL progression following laminoplasty...
November 7, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29121813/long-term-outcomes-after-arthroscopic-single-bundle-reconstruction-of-the-posterior-cruciate-ligament-a-7-year-follow-up-study
#4
Rui Wang, Bin Xu, Lei Wu, Honggang Xu
Objective Arthroscopy is the most popular technique in posterior cruciate ligament (PCL) reconstruction surgery. However, no consensus on long-term outcomes after arthroscopic PCL reconstruction has been reached. This study was performed to evaluate the long-term outcomes after arthroscopic autologous hamstring or allogeneic tendon single-bundle reconstruction of the PCL. Methods Fifty-eight patients who underwent arthroscopic PCL reconstruction in Anhui, China from 2007 to 2009 were included. The follow-up period ranged from 56 to 83 months...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29114629/knee-osteoarthritis-after-reconstruction-of-isolated-anterior-cruciate-ligament-injuries-a-systematic-literature-review
#5
REVIEW
Compagnoni Riccardo, Catani Fabio, Randelli Pietro
Purpose  The aim of this review was to analyze the current literature on osteoarthritic evolution of knees without any combined meniscal or ligament lesions undergoing anterior cruciate ligament (ACL) reconstruction. Methods  A PubMed/MEDLINE research was performed using the following keywords: "Anterior Cruciate Ligament Reconstruction" [Mesh] AND "Osteoarthritis, Knee" [Mesh]. Only English language literature and articles published after 2005 were included. Studies including concomitant meniscal tears, posterior cruciate or collateral ligament injuries, previous surgery in the affected knees, infections, osteochondral defects, loose bodies, synovial plica syndrome, and posteromedial or posterolateral corner injuries were not considered in this review...
March 2017: Joints
https://www.readbyqxmd.com/read/29103848/the-posterior-bundle-s-effect-on-posteromedial-elbow-instability-after-a-transverse-coronoid-fracture-a-biomechanical-study
#6
Dave R Shukla, Elan Golan, Mitch C Weiser, Philip Nasser, Jack Choueka, Michael Hausman
PURPOSE: There has been increased interest in the role of the posterior bundle of the medial collateral ligament (pMUCL) in the elbow, particularly its effects on posteromedial rotatory stability. The ligament's effect in the context of an unfixable coronoid fracture has not been the focus of any study. The purposes of this biomechanical study were to evaluate the stabilizing effect of the pMUCL with a transverse coronoid fracture and to assess the effect of graft reconstruction of the ligament...
November 2, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29100001/effects-of-anterior-closing-wedge-tibial-osteotomy-on-anterior-cruciate-ligament-force-and-knee-kinematics
#7
Kent T Yamaguchi, Edward C Cheung, Keith L Markolf, Daniel V Boguszewski, Justin Mathew, David R McAllister, Frank A Petrigliano
BACKGROUND: A certain percentage of patients undergoing anterior cruciate ligament (ACL) reconstruction will experience graft failure, and there is mounting evidence that an increased posterior tibial slope (PTS) may be a predisposing factor. Theoretically, under tibiofemoral compression force (TFC), a reduced PTS would induce less anterior tibial translation (ATT) and lower ACL force. HYPOTHESIS: Ten-degree anterior closing wedge osteotomy of the proximal tibia will significantly reduce ACL force and alter knee kinematics during robotic testing...
November 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29099891/paraskiing-crash-and-knee-dislocation-with-multiligament-reconstruction-and-iliotibial-band-repair
#8
Chase S Dean, Olivia Fernandes, Mark E Cinque, Jorge Chahla, Robert F LaPrade
We describe the diagnosis, treatment, rehabilitation, and complications of a 27-year-old male paraskiier who sustained a closed high-velocity knee dislocation after colliding with a tree at a speed of 45 mph and falling 40 feet to the ground. Extensive surgery to repair and reconstruct the knee included open lateral capsular repair, open anatomical posterolateral corner reconstruction with split Achilles tendon allograft, open iliotibial band reconstruction with Achilles tendon allograft, arthroscopic anterior cruciate ligament reconstruction with bone-patellar tendon-bone autograft, and double-bundle posterior cruciate ligament reconstruction with Achilles tendon allograft for the anterolateral bundle and tibialis anterior tendon allograft for the posteromedial bundle...
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29083227/variation-in-the-medial-patellofemoral-ligament-origin-in-the-skeletally-immature-knee-an-anatomic-study
#9
Kevin G Shea, W Duncan Martinson, Peter C Cannamela, Connor G Richmond, Peter D Fabricant, Allen F Anderson, John D Polousky, Theodore J Ganley
BACKGROUND: The medial patellofemoral ligament (MPFL) is frequently reconstructed to treat recurrent patellar instability. The femoral origin of the MPFL is well described in adults but not in the skeletally immature knee. PURPOSE: To identify a radiographic landmark for the femoral MPFL attachment in the skeletally immature knee and study its relationship to the distal femoral physis. STUDY DESIGN: Descriptive laboratory study. METHODS: Thirty-six cadaveric specimens between 2 and 11 years old were dissected and examined (29 male and 7 female)...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29078961/new-parameters-describing-how-knee-ligaments-carry-force-in-situ-predict-interspecimen-variations-in-laxity-during-simulated-clinical-exams
#10
Carl W Imhauser, Robert N Kent, James Boorman-Padgett, Ran Thein, Thomas L Wickiewicz, Andrew D Pearle
Knee laxity, defined as the net translation or rotation of the tibia relative to the femur in a given direction in response to an applied load, is highly variable from person to person. High levels of knee laxity as assessed during routine clinical exams are associated with first-time ligament injury and graft reinjury following reconstruction. During laxity exams, ligaments carry force to resist the applied load; however, relationships between intersubject variations in knee laxity and variations in how ligaments carry force as the knee moves through its passive envelope of motion, which we refer to as ligament engagement, are not well established...
October 7, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29066266/cross-pin-versus-interference-screw-for-femoral-graft-fixation-in-hamstring-anterior-cruciate-ligament-reconstruction-a-systematic-review-and-meta-analysis-of-clinical-outcomes
#11
REVIEW
Bin Hu, Weiliang Shen, Chenhe Zhou, Jiahong Meng, Haobo Wu, Shigui Yan
PURPOSE: To compare the effectiveness of a cross pin and interference screw for femoral graft fixation in primary anterior cruciate ligament reconstruction (ACLR) and provide an appropriate reference for orthopaedic surgeons. METHODS: The Medline, Cochrane Library, Web of Science, Scopus, and PubMed databases were searched in March 2016, and comparative trials using cross-pin and interference screw devices for femoral graft fixation in primary hamstring ACLR with clinical outcome measurements were included in the review...
October 21, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29063245/transparenchymal-glissonean-approach-a-novel-surgical-technique-for-advanced-perihilar-bile-duct-cancer
#12
Hirofumi Kamachi, Toshiya Kamiyama, Yousuke Tsuruga, Tatsuya Orimo, Kenji Wakayama, Shingo Shimada, Tatsuhiko Kakisaka, Hideki Yokoo, Kenichiro Yamashita, Akinobu Taketomi
PURPOSE: To increase the surgical opportunities for locally advanced perihilar bile duct cancers that require left-sided hepatectomies, we developed the transparenchymal glissonean approach (TGA); it comprises intra-hepatic exposure and dissection of the Glisson's sheath to gain access to the hepatic artery and portal vein for reconstruction. METHODS: Following skeletonization of the hepatoduodenal ligament, the proximal portions of invaded vessels are exposed. If extra-hepatic attempts to access the distal portions of the invaded vessels fail, TGA can be used...
October 23, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/29063153/the-posterior-horn-of-the-lateral-meniscus-is-a-reliable-novel-landmark-for-femoral-tunnel-placement-in-acl-reconstruction
#13
Andreas Weiler, Michael Wagner, Christoph Kittl
PURPOSE: Femoral tunnel placement is essential for good outcome in anterior cruciate ligament (ACL) reconstruction. In the past, several attempts have been made to optimize femoral tunnel placement. It was observed that the posterior horn of the lateral meniscus was always located directly below to the desired femoral ACL tunnel position, when the knee was brought to deep flexion (> 120°). The goal of the present study was to verify the hypothesis that the posterior horn of the lateral meniscus can be used as a landmark for femoral tunnel placement...
October 23, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29059112/the-posteromedial-corner-of-the-knee-anatomy-pathology-and-management-strategies
#14
Andrew P Dold, Stephanie Swensen, Eric Strauss, Michael Alaia
The posteromedial corner of the knee encompasses five medial structures posterior to the medial collateral ligament. With modern MRI systems, these structures are readily identified and can be appreciated in the context of multiligamentous knee injuries. It is recognized that anteromedial rotatory instability results from an injury that involves both the medial collateral ligament and the posterior oblique ligament. Like posterolateral corner injuries, untreated or concurrent posteromedial corner injuries resulting in rotatory instability place additional strain on anterior and posterior cruciate ligament reconstructions, which can ultimately contribute to graft failure and poor clinical outcomes...
November 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29051896/outcomes-and-complication-rates-after-primary-anterior-cruciate-ligament-reconstruction-are-similar-in-younger-and-older-patients
#15
Mark E Cinque, Jorge Chahla, Gilbert Moatshe, Nicholas N DePhillipo, Nicholas I Kennedy, Jonathan A Godin, Robert F LaPrade
BACKGROUND: Until recently, anterior cruciate ligament (ACL) tears in older patients were treated conservatively; however, these patients often experienced significant pain and instability. PURPOSE/HYPOTHESIS: The purpose of this study was to compare the patient-reported outcomes, patient satisfaction, and failure rates of primary ACL reconstruction between a younger (age 20-30 years) and older (age 50-75 years) patient cohort. It was hypothesized that patients in the older cohort could achieve comparable clinical outcomes and retear rates following ACL reconstruction with a bone-tendon-bone autograft or allograft compared with the younger patients...
October 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29048698/soft-tissue-reinforcement-with-a-leeds-keio-artificial-ligament-in-revision-surgery-for-dislocated-total-hip-arthroplasty
#16
Shigeo Aota, Shin-Ichi Kikuchi, Hironori Ohashi, Naoko Kitano, Michiyuki Hakozaki, Shin-Ichi Konno
INTRODUCTION: Since dislocation after total hip arthroplasty (THA) greatly diminishes patient's quality of life, the THA frequently needs revision. However, it is common for the dislocation not to heal even after reconstruction, but rather to become intractable. METHODS: The 17 patients with dislocated THA, mean age of 71 years (range 51-87 years), who underwent a revision THA together with soft tissue reinforcement with a Leeds-Keio (LK) ligament were enrolled...
October 16, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/29040171/biomechanical-comparison-of-single-bundle-and-double-bundle-posterior-cruciate-ligament-reconstruction-a-systematic-review-and-meta-analysis
#17
Dong-Yeong Lee, Dong-Hee Kim, Hyun-Jung Kim, Dae-Cheol Nam, Jin-Sung Park, Sun-Chul Hwang
BACKGROUND: Of the many issues regarding surgical techniques for posterior cruciate ligament (PCL) reconstruction, the choice between single-bundle (SB) and double-bundle (DB) reconstruction is one of the most debated. However, it is unclear which of the reconstruction techniques yields better outcomes in knees with a PCL injury. The purpose of this meta-analysis was to compare the benefits of SB and DB PCL reconstruction in terms of biomechanical outcomes. METHODS: The MEDLINE, Embase, Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, and SCOPUS electronic databases were searched for relevant articles comparing the outcomes of SB and DB PCL reconstruction that were published up until August 2016...
October 17, 2017: JBJS Reviews
https://www.readbyqxmd.com/read/29028358/posterior-tibial-translation-measurements-on-magnetic-resonance-imaging-improve-diagnostic-sensitivity-for-chronic-posterior-cruciate-ligament-injuries-and-graft-tears
#18
Nicholas N DePhillipo, Mark E Cinque, Jonathan A Godin, Gilbert Moatshe, Jorge Chahla, Robert F LaPrade
BACKGROUND: Magnetic resonance imaging (MRI) of the knee is a highly sensitive and specific method for diagnosing acute posterior cruciate ligament (PCL) tears, with a reported accuracy of 96% to 100%. In chronic and revision settings, these injuries may be missed on MRI because of the apparent continuity of nonfunctional PCL fibers. Posterior tibial translation (PTT) of the medial compartment has been identified as a potential secondary finding of PCL tear on routine MRI. Purpose/Hypothesis: The purpose of this study was to evaluate the sensitivity of PTT on MRI associated with PCL injuries and compare it with the sensitivity of a radiologist's MRI interpretation with preoperative posterior knee stress radiographs as the gold standard...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29026421/comparison-of-patellar-versus-hamstring-tendon-autografts-in-arthroscopic-anterior-cruciate-ligament-reconstruction-a-6-month-follow-up-of-a-randomized-clinical-trial
#19
Alireza Sadeghpour, Adel Ebrahimpour, Bahamin Attar, Zahra Azizian
BACKGROUND: The purpose of this study was to compare the outcomes of anterior cruciate ligament (ACL) reconstruction using the patellar versus hamstring tendon (HT) autograft. MATERIALS AND METHODS: In this randomized clinical trial, fifty patients undergoing arthroscopic ACL reconstruction were randomized into two equal groups: Those treated with either autogenous patellar tendon grafts (PT group) or HT group grafts. All patients were reviewed immediately after surgery, at 6 and 12 weeks after surgery, and then at 6 months using the International Knee Documentation Committee evaluation form...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/29018143/knee-upside-down
#20
Steven G J van der Aart, Remko J A Sonnega, Dirk-Jan Hofstee
We present a case of a 19-year-old woman with a forced hyperextension trauma of the knee causing a posteromedial fracture, a medial meniscus root tear and rupture of the posterior cruciate ligament. The posteromedial fracture of the tibial plateau was treated operatively with open reduction and internal fixation. Anatomical reconstruction was achieved. Postoperative treatment included unlimited flexion and minimal weight bearing. After 3 months, the patient had minimal pain after weight bearing and returned to preoperative range of motion...
October 9, 2017: BMJ Case Reports
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