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Posterior Cruciate

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https://www.readbyqxmd.com/read/29145963/functional-results-and-isokinetic-muscle-strength-in-patients-with-fraser-type-i-floating-knee-treated-with-internal-fixation
#1
Fernando Brandao Andrade-Silva, Adriana Carvalho, Caio Mansano, Aline Giese, Marcos de Camargo Leonhardt, Dennis Barbosa, Kodi Edson Kojima, Jorge Santos Silva
INTRODUCTION: According to Fraser's description, ipsilateral femoral and tibial diaphyseal fractures are characterised as type I floating knee and have a better prognosis than fractures with joint involvement (type II). There are few reports of functional and muscle strength in these patients. The objective of this study was to evaluate the functional and isokinetic muscle strength of patients with type I floating knee undergoing femoral and tibial internal fixation. METHODS: Patients with type I floating knee undergoing concomitant femoral and tibial internal fixation were invited for clinical evaluation...
October 2017: Injury
https://www.readbyqxmd.com/read/29124363/reduced-joint-awareness-in-bicruciate-retaining-total-knee-arthroplasty-compared-to-cruciate-sacrificing-total-knee-arthroplasty
#2
Florian Baumann, Werner Krutsch, Michael Worlicek, Maximilian Kerschbaum, Johannes Zellner, Paul Schmitz, Michael Nerlich, Carsten Tibesku
PURPOSE: There is rising impact of patient-reported outcome (PRO) measurement in joint arthroplasty over the past years. Bicruciate-retaining implants have shown more physiologic knee kinematics and provide superior proprioceptive capacities. The aim of this study was to evaluate if the functional properties of this new implant design lead to improved PRO results after total knee arthroplasty (TKA). METHODS: This prospective, controlled trial compares PRO of bicruciate-retaining total knee arthroplasty (BCR-TKA) to unicondylar knee arthroplasty (UKA) and standard posterior-stabilized total knee arthroplasty (PS-TKA)...
November 9, 2017: Archives of Orthopaedic and Trauma Surgery
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
#3
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
#4
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/29114530/test-retest-reliability-of-repeated-knee-laxity-measurements-in-the-acute-phase-following-a-knee-trauma-using-a-rolimeter
#5
Daniel Ericsson, Anna Hafsteinsson Östenberg, Erik Andersson, Marie Alricsson
The purpose was to examine the test-retest reliability of the Rolimeter measurement procedure in the acute time phase, following a substantial knee trauma. In total, 15 participants with acute knee trauma were examined by one single observer at three different time-points with the Rolimeter using a maximum force. The selected time-points were: baseline (0-7 days after the trauma), midpoint (3-4 weeks after the trauma), and endpoint (3-4 weeks after the trauma). The anterior-posterior displacement was recorded where the endpoint evaluation was used as the reference value...
October 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29114338/rationale-of-cruciate-retaining-design-in-rheumatoid-arthritis-a-review-of-clinical-analysis-and-its-role-in-rheumatoid-arthritis
#6
Munis Ashraf, Om Prakash Sharma, Sruthi Priyavadhana, Senthil Nathan Sambandam, Varatharaj Mounasamy
Background: Over the years, proponents of total knee designs (cruciate retaining and posterior stabilised) have conducted several long-term studies to claim the potential of these designs in several subsets of patients. Total knee arthroplasty (TKA) in patients with rheumatoid arthritis has also been one such domain where numerous studies were conducted in the past. A general perception among majority of arthroplasty surgeons is that, posterior stabilised (PS) is the implanted design of choice among patients with Rheumatoid arthritis (RA)...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29103777/comparison-of-intraoperative-soft-tissue-balance-between-cruciate-retaining-and-posterior-stabilized-total-knee-arthroplasty-performed-by-a-newly-developed-medial-preserving-gap-technique
#7
Masanori Tsubosaka, Hirotsugu Muratsu, Koji Takayama, Hidetoshi Miya, Ryosuke Kuroda, Tomoyuki Matsumoto
BACKGROUND: Medial stability of the knee is considered to be associated with good clinical results after total knee arthroplasty (TKA). This study aimed to compare intraoperative soft tissue balance between cruciate-retaining (CR) and posterior-stabilized (PS) TKA performed by a newly developed medial preserving gap technique, which aimed at preserving medial stability throughout the range of motion. METHODS: Seventy CR-TKAs and 70 PS-TKAs were performed in patients with varus type osteoarthritis with the novel technique guided by tensor measurements...
October 12, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29102413/posteriorly-inserted-anterior-cruciate-ligament-in-knees-with-discoid-lateral-meniscus-corresponding-to-bony-morphological-characteristics-of-femoral-lateral-condyle
#8
Takao Minami, Hideyuki Koga, Ichiro Sekiya, Toshifumi Watanabe, Masafumi Horie, Hiroki Katagiri, Koji Otabe, Toshiyuki Ohara, Mai Katakura, Takeshi Muneta
PURPOSE: Discoid meniscus often causes mechanical problems and needs surgical treatment at an early age. However, many aspects of its morphological development and changes remain unknown. The purpose of this study was to investigate the insertion of the femoral anterior cruciate ligament (ACL) via the behind-ACL approach and the morphology of the lateral femoral condyle to which the ACL attaches to clarify the morphological characteristics of the knee with discoid lateral meniscus (DLM)...
November 1, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/29102017/editorial-commentary-measuring-coronal-mal-alignment-for-patients-with-patellar-instability-tibial-tubercle-to-trochlear-groove-versus-tibial-tubercle-to-posterior-cruciate-ligament-distance
#9
EDITORIAL
Andrew J Cosgarea
Excessive lateralization of the tibial tuberosity is one of the anatomic factors that contribute to lateral patellar instability, which we usually correct surgically with tibial tuberosity osteotomy. Traditionally, coronal alignment was determined clinically by measuring the Q angle, which has proven to be unreliable. Radiographic measurements of coronal alignment made using computed tomography and magnetic resonance imaging are more reliable and have become the standard for determining the need for corrective tibial tuberosity osteotomy...
November 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29100001/effects-of-anterior-closing-wedge-tibial-osteotomy-on-anterior-cruciate-ligament-force-and-knee-kinematics
#10
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
#11
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/29099888/medial-oblique-meniscomeniscal-ligament-of-knee
#12
Avijit Sharma, Jason Payne, M M Manring, David C Flanigan
An aberrant meniscus attachment was found in the setting of an anterior cruciate ligament injury. An anomalous cordlike attachment ran from the anterior horn of the medial meniscus to the posterior horn of the lateral meniscus through the intercondylar notch. Surgeons should be aware of the anatomical variability in the knee in order to provide the best care for their patients.
September 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/29095400/mri-arthroscopy-correlations-ligaments-of-the-knee
#13
Joseph J Ruzbarsky, Gabrielle Konin, Naaman Mehta, Robert G Marx
Magnetic resonance imaging and a thorough understanding of its interpretation in the diagnosis and management of injuries to the ligaments about the knee is an essential skill for orthopedists. The goal of this review is to provide a description of the native and injured anatomy through magnetic resonance imaging and its correlations, when appropriate, as seen through the arthroscope at the time of surgery. The ligaments of focus include the anterior cruciate ligament, the posterior cruciate ligament, the medial collateral ligament, the posterolateral corner, the anterolateral ligament, and the medial patellofemoral ligament...
December 2017: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/29093428/danshen-attenuates-cartilage-injuries-in-osteoarthritis-in-vivo-and-in-vitro-by-activating-jak2-stat3-and-akt-pathways
#14
Xilin Xu, Hang Lv, Xiaodong Li, Hui Su, Xiaofeng Zhang, Jun Yang
Articular cartilage degradation is a main feature of osteoarthritis (OA). The effects of Danshen, a traditional Chinese herb, in mitigating cartilage damage have been reported before. This study was conducted to investigate the effects of Danshen on cartilage injuries in OA. Rabbit OA models were established by surgical destabilization of the medial meniscus and the anterior and posterior cruciate ligaments in the left knee joint. Injection of Danshen into the articular cavity attenuated OA cartilage destruction in vivo...
October 31, 2017: Experimental Animals
https://www.readbyqxmd.com/read/29089224/is-cross-linked-polyethylene-an-improvement-over-conventional-ultra-high-molecular-weight-polyethylene-in-total-knee-arthroplasty
#15
Bertrand Boyer, Barbara Bordini, Dalila Caputo, Thomas Neri, Susanna Stea, Aldo Toni
BACKGROUND: Reducing polyethylene (PE) wear by increasing the cross-linking encouraged surgeons to hope for increased total knee arthroplasty (TKA) survival rates. Different methods of manufacturing cross-linked polyethylene (XLPE) were introduced, following promising in vitro results. Is there a measurable effect of cross-linking on TKA survival? METHODS: A registry study was conducted, focusing on fixed tibial inserts in primary TKA. Conventional PE represented 87% of the liners, 10% were cross-linked and 2% were antioxidant PE...
October 10, 2017: Journal of Arthroplasty
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
#16
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
#17
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/29066105/in%C3%A2-vivo-kinematic-comparison-of-a-bicruciate-stabilized-total-knee-arthroplasty-and-the-normal-knee-using-fluoroscopy
#18
Trevor F Grieco, Adrija Sharma, Garett M Dessinger, Harold E Cates, Richard D Komistek
BACKGROUND: The bicruciate stabilized (BCS) total knee arthroplasty (TKA) features asymmetrical bearing geometry and dual substitution for the anterior cruciate ligament and posterior cruciate ligament (PCL). Previous TKA designs have not fully replicated normal knee motion, and they are characterized by lower magnitudes of overall rollback and axial rotation than the normal knee. METHODS: In vivo kinematics were derived for 10 normal knees and 40-second generation BCS TKAs all implanted by a single surgeon...
September 25, 2017: Journal of Arthroplasty
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
#19
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
#20
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
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