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https://www.readbyqxmd.com/read/28918500/current-evidence-advocates-use-of-a-new-pathologic-tibial-tubercle-posterior-cruciate-ligament-distance-threshold-in-patients-with-patellar-instability
#1
REVIEW
Nickolas Boutris, Domenica A Delgado, John S Labis, Patrick C McCulloch, David M Lintner, Joshua D Harris
PURPOSE: To determine (1) whether a correlation exists between tibial tubercle-posterior cruciate ligament (TT-PCL) and tibial tubercle-trochlear groove (TT-TG) distances in patellar instability patients; (2) reliability when measuring TT-PCL distance; (3) whether TT-PCL distances measured on MRI are equivalent to those on CT; and (4) whether a correlation exists between TT-PCL distance and number of instability events or recurrence of instability following stabilization surgery. METHODS: A systematic review was performed using PRISMA guidelines...
September 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28917876/preparation-of-chitosan-hydroxyapatite-composite-mono-fiber-using-coagulation-method-and-their-mechanical-properties
#2
Takuma Okada, Yuta Nobunaga, Toshiisa Konishi, Tomohiko Yoshioka, Satoshi Hayakawa, Maria Ascensão Lopes, Toshiki Miyazaki, Yuki Shirosaki
Autograft has been carried out for anterior cruciate ligament (ACL) reconstruction surgery. However, it has negative aspect because patients lose their healthy ligaments from other part. We focus on a chitosan-hydroxyapatite (HAp) composite fiber as a scaffold of ligament regeneration. Chitosan- HAp composite fiber was made by using coagulation method. Chitosan-NaH2PO4 solution was coagulated with coagulation bath including calcium ion to get the mono-fiber and then treated with sodium hydroxide solution to form HAp in fiber matrix...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917580/the-influence-of-ligament-modelling-strategies-on-the-predictive-capability-of-finite-element-models-of-the-human-knee-joint
#3
Hamid Naghibi Beidokhti, Dennis Janssen, Sebastiaan van de Groes, Javad Hazrati, Ton Van den Boogaard, Nico Verdonschot
In finite element (FE) models knee ligaments can represented either by a group of one-dimensional springs, or by three-dimensional continuum elements based on segmentations. Continuum models closer approximate the anatomy, and facilitate ligament wrapping, while spring models are computationally less expensive. The mechanical properties of ligaments can be based on literature, or adjusted specifically for the subject. In the current study we investigated the effect of ligament modelling strategy on the predictive capability of FE models of the human knee joint...
September 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28917521/midterm-results-of-combined-intra-and-extra-articular-acl-reconstruction-compared-to-historical-acl-reconstruction-data-multicenter-study-of-the-francophone-society-of-arthroscopy
#4
P Imbert, S Lustig, C Steltzlen, C Batailler, P Colombet, F Dalmay, S Bertiaux, P D'ingrado, F P Ehkirch, M L Louis, R Pailhé, J C Panisset, B Schlaterrer, B Sonnery-Cottet, L Sigwalt, D Saragaglia, C Lutz
INTRODUCTION: During anterior cruciate ligament (ACL) reconstruction procedures, anterolateral reconstruction (ALR) can also be performed to improve the knee's rotational stability. However, the effectiveness of this supplemental technique and its impact on the risk of retears and on the onset of secondary degenerative changesare controversial. HYPOTHESIS: ALR improves control over the pivot shift, reduces the retear risk and delays the appearance of secondary degenerative lesions...
September 13, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28917520/short-term-complications-in-intra-and-extra-articular-anterior-cruciate-ligament-reconstruction-comparison-with-the-literature-on-isolated-intra-articular-reconstruction-a-multicenter-study-by-the-french-society-of-arthroscopy
#5
J C Panisset, R Pailhé, B Schlaterrer, L Sigwalt, B Sonnery-Cottet, C Lutz, S Lustig, C Batailler, S Bertiaux, F P Ehkirch, P Colombet, C Steltzlen, M L Louis, P D'ingrado, F Dalmay, P Imbert, D Saragaglia
INTRODUCTION: Lateral tenodesis (LT) is performed to limit the risk of iterative tear following anterior cruciate ligament (ACL) reconstruction in at-risk patients. By adding an extra procedure to isolated ACL graft, LT reconstruction increases operating time and may complicate postoperative course. The objective of the present study was to evaluate the rate of early complications. The study hypothesis was that associating ALL reconstruction to ACL reconstruction does not increase the complications rate found with isolated ACL reconstruction...
September 13, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28916912/morphological-changes-in-tibial-tunnels-after-anatomic-anterior-cruciate-ligament-reconstruction-with-hamstring-tendon-graft
#6
Tomoki Ohori, Tatsuo Mae, Konsei Shino, Yuta Tachibana, Kazuomi Sugamoto, Hideki Yoshikawa, Ken Nakata
BACKGROUND: Three-dimensional (3D) reconstructed computed tomography (CT) is crucial for the reliable and accurate evaluation of tunnel enlargement after anterior cruciate ligament (ACL) reconstruction. The purposes of this study were to evaluate the tibial tunnel enlargement at the tunnel aperture and inside the tunnel and to clarify the morphological change at the tunnel footprint 1 year after the anatomic triple-bundle (ATB) ACL reconstruction using 3D CT models. METHODS: Eighteen patients with unilateral ACL rupture were evaluated...
September 15, 2017: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/28916871/strength-and-functional-symmetry-is-associated-with-post-operative-rehabilitation-in-patients-following-anterior-cruciate-ligament-reconstruction
#7
Jay R Ebert, Peter Edwards, Luke Yi, Brendan Joss, Timothy Ackland, Richard Carey-Smith, Jens-Ulrich Buelow, Ben Hewitt
PURPOSE: To investigate strength and functional symmetry during common tests in patients after anterior cruciate ligament reconstruction (ACLR), and its association with post-operative rehabilitation. METHODS: At a median 11.0 months post-surgery (range 10-14), 111 ACLR patients were assessed. A rehabilitation grading tool was employed to evaluate the duration and supervision of rehabilitation, as well as whether structured jumping, landing and agility exercises were undertaken...
September 15, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28915914/paradoxical-tunnel-enlargement-after-acl-reconstruction-with-hamstring-autografts-when-using-%C3%AE-tcp-containing-interference-screws-for-tibial-aperture-fixation-prospectively-comparative-study
#8
Joon Ho Wang, Eun Su Lee, Byung Hoon Lee
BACKGROUND: Tibial aperture fixation with a bioabsorbable interference screw is a popular fixation method in anterior cruciate ligament reconstruction (ACLR). An interference screw containing β-tricalcium phosphate (β-TCP) to improve bony integration and biocompatibility was recently introduced. This study aims to compare the clinical outcomes and radiological results of tunnel enlargement effect between the 2 bioabsorbable fixative devices of pure poly-L-lactic acid (PLLA) interference screws and β-TCP-containing screws, for tibial interference fixation in ACLR using hamstring autografts...
September 16, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28915567/melatonin-inhibits-sirt1-dependent-nampt-and-nfat5-signaling-in-chondrocytes-to-attenuate-osteoarthritis
#9
Jia Yi Guo, Feng Li, Yong Bing Wen, Hong Xun Cui, Ma Long Guo, Lin Zhang, Yun Fei Zhang, Yan Jin Guo, Yan Xing Guo
Osteoarthritis (OA) is a degenerative joint disease mainly characterized by cartilage degradation. Interleukin-1β (IL-1β) contributes to OA pathogenesis by enhancing oxidative stress and inflammation. Melatonin reportedly elicits potent protection against OA. However, the role of melatonin and underlying mechanism in IL-1β-stimulated chondrocytes remain largely unclear. In this study, we found that melatonin inhibited IL-1β-induced toxicity and sirtuin 1 (Sirt1) enhancement in human chondrocytes. Melatonin reduced the IL-1β-increased nicotinamide phosphoribosyltransferase (NAMPT) expression and the NAD(+) level in chondrocytes in a Sirt1-dependent manner...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28913921/analgesic-efficacy-of-local-infiltration-analgesia-vs-femoral-nerve-block-after-anterior-cruciate-ligament-reconstruction-a-systematic-review-and-meta-analysis
#10
REVIEW
K R Kirkham, S Grape, R Martin, E Albrecht
Many published reports consider blockade of the femoral nerve distribution the best available analgesic treatment after anterior cruciate ligament reconstruction. However, some argue that an alternative approach of infiltrating local anaesthetic into the surgical site has similar efficacy. The objectives of this meta-analysis were to compare the analgesic and functional outcomes of both treatments following anterior ligament reconstruction. The primary outcomes were pain scores at rest (analogue scale, 0-10) in the early (0-2 postoperative hours), intermediate (3-12 hours) and late postoperative periods (13-24 hours)...
September 15, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28913685/-ramp-lesions-tips-and-tricks-in-diagnostics-and-therapy
#11
REVIEW
R Seil, A Hoffmann, S Scheffler, D Theisen, C Mouton, D Pape
There is an increasing biomechanical and anatomical understanding of the different types of meniscal lesions. Lesions of the posterior part of the medial meniscus in the meniscosynovial area have recently received increased attention. They generally occur in association with anterior cruciate ligament (ACL) injuries. They are often missed ("hidden lesions") due to the fact that they cannot be seen by routine anterior arthroscopic inspection. Furthermore, meniscosynovial lesions play a role in anteroposterior knee laxity and, as such, they may be a cause of failure of ACL reconstruction or of postoperative persistent laxity...
September 14, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28913413/open-versus-closed-kinetic-chain-exercises-following-an-anterior-cruciate-ligament-reconstruction-a-systematic-review-and-meta-analysis
#12
REVIEW
Daniel Jewiss, Cecilia Ostman, Neil Smart
BACKGROUND: There is no consensus on whether closed kinetic chain (CKC) or open kinetic chain (OKC) exercises should be the intervention of choice following an anterior cruciate ligament (ACL) injury or reconstruction. METHODS: A systematic search identified randomized controlled trials of OKC versus CKC exercise training in people who had undergone ACL reconstructive surgery. All published studies in this systematic review were comparisons between OKC and CKC groups...
2017: Journal of Sports Medicine (Hindawi Publishing Corporation)
https://www.readbyqxmd.com/read/28912864/evaluation-of-the-chondroprotective-action-of-n-acetylglucosamine-in-a-rat-experimental-osteoarthritis-model
#13
Daiki Kubomura, Tomoya Ueno, Masanori Yamada, Isao Nagaoka
It has been demonstrated that oral administration of N-acetylglucosamine (GlcNAc) alleviates the symptoms of osteoarthritis (OA). The aim of the present study was to elucidate the molecular mechanisms for the chondroprotective action of GlcNAc in OA. Biomarkers for type II collagen degradation and synthesis were evaluated, as were histopathological changes, using a rat anterior cruciate ligament transection (ACLT)-induced OA model. Changes in the expression of genes in the cartilage were assessed via DNA microarray and reverse transcription-quantitative polymerase chain reaction (RT-qPCR)...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28912662/long-term-changes-in-muscles-around-the-knee-joint-after-acl-resection-in-rats-comparisons-of-acl-resected-contralateral-and-normal-limb
#14
Mahiro Ohno, Hiroto Fujiya, Katsumasa Goto, Mitsutoshi Kurosaka, Yuji Ogura, Kanaka Yatabe, Takaaki Kudo, Hajime Kobayashi, Hisateru Niki, Haruki Musha
The purpose of this study was to investigate the long-term effects of anterior cruciate ligament (ACL) resection on the morphological and contractile characteristics of rectus femoris (RF) and semimembranosus (SM) muscles in both injured and contralateral hindlimbs in rats. Wistar male rats (8-week old) were used. Rats were divided into two groups; ACL-resected and (sham-operated) control groups. Furthermore, right and left limbs of rats in the ACL-resected group were assigned as ACL-resected and contralateral groups, respectively, at 1 day, 1, 4, and 48 weeks after ACL resection...
September 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28910987/management-of-combined-injuries-of-the-posterior-cruciate-ligament-and-posterolateral-corner-of-the-knee-a-systematic-review
#15
Stefano Petrillo, Piero Volpi, Rocco Papalia, Nicola Maffulli, Vincenzo Denaro
Background: Approximately 60% of posterior cruciate ligament (PCL) injury are associated with a posterolateral corner (PLC) tear. Sources of data: We performed a systematic review of the literature according to the PRISMA guidelines. The following key words were searched on Medline, Cochrane, EMBASE, Google Scholar, and Ovid: 'posterior cruciate ligament' or 'PCL' with 'posterolateral corner' or 'PLC' and 'chronic'; 'injury'; 'management'; 'reconstruction'; 'outcomes'; 'complications'...
September 1, 2017: British Medical Bulletin
https://www.readbyqxmd.com/read/28903010/effect-of-loading-on-in-vivo-tibiofemoral-and-patellofemoral-kinematics-of-healthy-and-acl-reconstructed-knees
#16
Jarred M Kaiser, Michael F Vignos, Richard Kijowski, Geoffrey Baer, Darryl G Thelen
BACKGROUND: Although knees that have undergone anterior cruciate ligament reconstruction (ACLR) often exhibit normal laxity on clinical examination, abnormal kinematic patterns have been observed when the joint is dynamically loaded during whole body activity. This study investigated whether abnormal knee kinematics arise with loading under isolated dynamic movements. HYPOTHESIS: Tibiofemoral and patellofemoral kinematics of ACLR knees will be similar to those of the contralateral uninjured control knee during passive flexion-extension, with bilateral differences emerging when an inertial load is applied...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28902760/common-ice-hockey-injuries-and-treatment-a-current-concepts-review
#17
William Mosenthal, Michael Kim, Robert Holzshu, Bryan Hanypsiak, Aravind Athiviraham
Injuries are common in ice hockey, a contact sport where players skate at high speeds on a sheet of ice and shoot a vulcanized rubber puck in excess of one hundred miles per hour. This article reviews the diagnoses and treatment of concussions, injuries to the cervical spine, and lower and upper extremities as they pertain to hockey players. Soft tissue injury of the shoulder, acromioclavicular joint separation, glenohumeral joint dislocation, clavicle fractures, metacarpal fractures, and olecranon bursitis are discussed in the upper-extremity section of the article...
September 2017: Current Sports Medicine Reports
https://www.readbyqxmd.com/read/28902602/reestablishment-of-the-posterior-stability-after-the-posterior-cruciate-ligament-released-cruciate-retaining-total-knee-arthroplasty
#18
Yasushi Oshima, Joseph Fetto
PURPOSE: The cruciate retaining (CR) design was developed to obtain knee stability with the natural posterior cruciate ligament (PCL) in total knee arthroplasty (TKA). However, the preservation of the PCL can limit knee exposure and increase the technical challenge during the procedure. Knee exposure is easily achieved under the released PCL, and we hypothesized that the PCL naturally repairs after release, thus re-establishing the posterior stability. Accordingly, the objective of this study was to evaluate the varying of the posterior stability after the PCL-released CR TKA over time...
May 2017: Bulletin of the Hospital for Joint Diseases
https://www.readbyqxmd.com/read/28900563/cadaveric-evaluation-of-the-lateral-anterior-drawer-test-for-examining-posterior-cruciate-ligament-integrity
#19
Gesine H Seeber, Marc P Wilhelm, Gunther Windisch, Hans-Joachim Appell Coriolano, Omer C Matthijs, Philip S Sizer
BACKGROUND: Common clinical tests often fail to identify posterior cruciate ligament (PCL) ruptures, leading to undetected tears and potential degenerative changes in the knee. The lateral-anterior drawer (LAD) test has been proposed but not yet evaluated regarding its effectiveness for diagnosing PCL-ruptures. HYPOTHESIS: The LAD will show greater tibial translation values in lateral-anterior direction in a PCL-Cut condition compared to a PCL-Intact condition, thus serving as a useful test for clinical diagnosis of PCL integrity...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28899822/early-strength-recovery-after-anterior-cruciate-ligament-reconstruction-using-the-fascia-lata
#20
Gregory Haillotte, Alexandre Hardy, Benjamin Granger, Thibaut Noailles, Fréderic Khiami
INTRODUCTION: After undergoing anterior cruciate ligament (ACL) reconstruction, patients must recover at least 80% of their hamstring and quadriceps strength to be able to return to sports without risk to the graft. Harvesting of the patellar tendon leads to large deficits in quadriceps strength, while harvesting the hamstring tendons leads to large deficits in hamstring strength. However, there are no published studies on the strength deficit after ACL reconstruction with the fascia lata...
September 9, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
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