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Posterior Cruciate

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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/28916912/morphological-changes-in-tibial-tunnels-after-anatomic-anterior-cruciate-ligament-reconstruction-with-hamstring-tendon-graft
#2
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/28913685/-ramp-lesions-tips-and-tricks-in-diagnostics-and-therapy
#3
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/28910987/management-of-combined-injuries-of-the-posterior-cruciate-ligament-and-posterolateral-corner-of-the-knee-a-systematic-review
#4
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/28902602/reestablishment-of-the-posterior-stability-after-the-posterior-cruciate-ligament-released-cruciate-retaining-total-knee-arthroplasty
#5
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
#6
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/28893426/outcomes-after-double-bundle-anterior-cruciate-ligament-reconstruction
#7
Ji Hyun Ahn, Ho Won Kang, Kug Jin Choi
PURPOSE: To identify the risk factors predicting unsatisfactory postoperative clinical outcomes after double-bundle (DB) anterior cruciate ligament (ACL) reconstruction using multivariate logistic regression. METHODS: Inclusion criteria were consecutive DB ACL reconstructions from January 2006 to September 2012 with a minimum 3-year follow-up. Exclusion criteria included (1) a delay to surgery from initial injury of more than 4 years (210 weeks); (2) contralateral knee pathology; (3) the lack of postoperative 3-dimensional computed tomography; (4) single-bundle ACL reconstruction; (5) revision ACL reconstruction; (6) meniscus allograft transplantation after total or subtotal meniscectomy; (7) multiple ligament surgeries...
September 8, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28893388/the-imaging-findings-of-impingement-syndromes-of-the-lower-limb
#8
REVIEW
M De Maeseneer, S Wuertzer, J de Mey, M Shahabpour
In this article we provide an overview of impingement syndromes of the lower limb. At the level of the hip, femoroacetabular and ischiofemoral impingement are recognised. At the level of the knee, we discuss Hoffa's fat pad impingement, suprapatellar fat pad impingement, pericruciate impingement, and iliotibial band syndrome. The impingement syndromes associated with anterior cruciate ligament (ACL) repair and intercondylar osteophytes are also illustrated. Most impingement syndromes are described at the level of the ankle...
September 8, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28884312/kinematically-aligned-total-knee-arthroplasty-limits-high-tibial-forces-differences-in-tibial-forces-between-compartments-and-abnormal-tibial-contact-kinematics-during-passive-flexion
#9
Joshua D Roth, Stephen M Howell, Maury L Hull
PURPOSE: Following total knee arthroplasty (TKA), high tibial forces, large differences in tibial forces between the medial and lateral compartments, and anterior translation of the contact locations of the femoral component on the tibial component during passive flexion indicate abnormal knee function. Because the goal of kinematically aligned TKA is to restore native knee function without soft tissue release, the objectives were to determine how well kinematically aligned TKA limits high tibial forces, differences in tibial forces between compartments, and anterior translation of the contact locations of the femoral component on the tibial component during passive flexion...
September 7, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28878513/fibromas-arising-from-the-posterior-cruciate-ligament-tendon-sheath-in-the-bilateral-knee-joints-case-report
#10
Nobuyuki Kumahashi, Suguru Kuwata, Hiroshi Takuwa, Soichiro Yamamoto, Yuji Uchio
Fibroma of tendon sheath in the intra-knee joint is a very rare and benign soft-tissue tumour which has been reported unilaterally in the various aged people. To help distinguish it from other similar kinds of lesions and symptoms including osteoarthritis, we report the oldest case of fibromas arising from the posterior cruciate ligament tendon sheath in the bilateral knee joints within one year of each other confirmed with magnetic resonance imaging (MRI) features, operative findings and histological examination...
December 2017: Journal of Orthopaedics
https://www.readbyqxmd.com/read/28875154/structural-and-anatomic-restoration-of-the-anterior-cruciate-ligament-is-associated-with-less-cartilage-damage-1-year-after-surgery-healing-ligament-properties-affect-cartilage-damage
#11
Ata M Kiapour, Braden C Fleming, Martha M Murray
BACKGROUND: Abnormal joint motion has been linked to joint arthrosis after anterior cruciate ligament (ACL) reconstruction. However, the relationships between the graft properties (ie, structural and anatomic) and extent of posttraumatic osteoarthritis are not well defined. HYPOTHESES: (1) The structural (tensile) and anatomic (area and alignment) properties of the reconstructed graft or repaired ACL correlate with the total cartilage lesion area 1 year after ACL surgery, and (2) side-to-side differences in anterior-posterior (AP) knee laxity correlate with the total cartilage lesion area 1 year postoperatively...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28873348/management-of-traumatic-meniscal-tear-and-degenerative-meniscal-lesions-save-the-meniscus
#12
REVIEW
P Beaufils, N Pujol
Meniscectomy remains one of the most frequent orthopedic procedures, despite meniscal sparing having been advocated for several decades now. Incidence is excessive in the light of scientifically robust studies demonstrating the interest of meniscal repair or of non-operative treatment for traumatic tear and of non-operative treatment for degenerative meniscal lesions. It is high time that the paradigm shifted, in favor of meniscal preservation. In traumatic tear, and most particularly longitudinal vertical tear in vascularized zones, repair shows a high success rates in terms of recovery time, functional outcome and cartilage protection...
September 2, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28870628/the-role-of-anterior-cruciate-ligament-in-the-control-of-posture-possible-neural-contribution
#13
Mohammadreza Nematollahi, Mohsen Razeghi, Behdad Tahayori, David Koceja
The anterior cruciate ligament (ACL) is not only a mechanical structure for knee joint stability but is also a source of sensory information which could be used in the control of standing posture. It has been shown that the center of pressure (COP) time series during normal standing may be decomposed into two components which are hypothetically governed by different neural mechanisms, namely rambling and trembling. The aim of the present study was to investigate to what extent an injury to the ACL structure would affect these two control mechanisms...
September 8, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28866340/single-bundle-and-double-bundle-posterior-cruciate-ligament-reconstructions-a-systematic-review-and-meta-analysis-of-441-patients-at-a-minimum-2%C3%A2-years-follow-up
#14
Jorge Chahla, Gilbert Moatshe, Mark E Cinque, Grant J Dornan, Justin J Mitchell, Taylor J Ridley, Robert F LaPrade
PURPOSE: To perform a systematic review on the techniques and a meta-analysis on the functional and objective outcomes after single-bundle (SB) versus double-bundle (DB) posterior cruciate ligament (PCL) reconstructions. METHODS: A systematic review of the techniques, as well as functional and objective outcomes of clinical studies comparing SB versus DB PCL reconstruction with a mean follow-up of at least 24 months and minimum level of evidence of III were performed...
August 30, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28856482/hyperextension-injuries-of-the-knee-do-patterns-of-bone-bruising-predict-soft-tissue-injury
#15
A M Ali, J K Pillai, V Gulati, C E R Gibbons, B J Roberton
OBJECTIVE: To establish whether patterns of soft tissue injury following knee hyperextension are associated with post-traumatic 'bone bruise' distribution. MATERIALS AND METHODS: Patients with a knee MRI within one year of hyperextension injury were identified at our institution over a 7 year period. MRIs, plain radiographs and clinical details of these patients were reviewed. RESULTS: Twenty-five patients were identified (median time from injury to MRI = 24 days)...
August 31, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28854767/open-reduction-and-internal-fixation-of-isolated-posterior-cruciate-ligament-avulsion-fractures-clinical-and-functional-outcome
#16
Sachin Joshi, Chirag Bhatia, Ashwin Gondane, Avinash Rai, Sumer Singh, Shobhit Gupta
Purpose: The posterior cruciate ligament (PCL) presents commonly with avulsion fractures of its tibial attachment. An avulsion fracture of the PCL, if not surgically fixed, may lead to secondary changes in the knee joint. Various fixation techniques have been explored with use of lag screws, steel wires, absorbable screws, suture anchors and straddle nails. The purpose of this study was to evaluate the clinical and functional outcome of open reduction and internal fixation of tibial avulsion injuries of the PCL using cannulated cancellous screws...
September 1, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/28840195/pediatric-posterior-cruciate-ligament-avulsion-fracture-of-the-tibial-insertion-case-report-and-review-of-the-literature
#17
Yannick Hurni, Vincenzo De Rosa, Jorge Gabriel Gonzalez, Mario Mendoza-Sagaon, Flurim Hamitaga, Giorgia Pellanda
Background  Posterior cruciate ligament (PCL) avulsion fracture of the tibial insertion is a very rare injury in children. In addition to performing an attentive clinical examination, radiologic studies are fundamental for its correct diagnosis and treatment. Its management may be either conservative or operative. So far, only a few cases treated conservatively have been reported in the pediatric population, with controversial results. Methods  We prospectively collected and reviewed clinical and radiographic data of an 11-year-old boy with avulsion fracture of the tibial insertion of the PCL...
July 2017: Surg J (N Y)
https://www.readbyqxmd.com/read/28840154/do-tibial-plateau-fractures-worsen-outcomes-of-knee-ligament-injuries-a-matched-cohort-analysis
#18
Mark E Cinque, Jonathan A Godin, Gilbert Moatshe, Jorge Chahla, Bradley M Kruckeberg, Jonas Pogorzelski, Robert F LaPrade
BACKGROUND: Tibial plateau fractures account for a small portion of all fractures; however, these fractures can pose a surgical challenge when occurring concomitantly with ligament injuries. PURPOSE/HYPOTHESIS: The purpose of this study was to compare 2-year outcomes of soft tissue reconstruction with or without a concomitant tibial plateau fracture and open reduction internal fixation. We hypothesized that patients with a concomitant tibial plateau fracture at the time of soft tissue surgery would have inferior outcomes compared with patients without an associated tibial plateau fracture...
August 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28835342/loss-of-acl-function-leads-to-alterations-in-tibial-plateau-common-dynamic-contact-stress-profiles
#19
Tony Chen, Hongsheng Wang, Russell Warren, Suzanne Maher
It has been suggested that the repetitive nature of altered joint tissue loading which occurs after anterior cruciate ligament (ACL) rupture can contribute to the development of osteoarthritis (OA). However, changes in dynamic knee joint contact stresses after ACL rupture have not been quantified for activities of daily living. Our objective was to characterize changes in dynamic contact stress profiles that occur across the tibial plateau immediately after ACL transection. By subjecting sensor-augmented cadaveric knees to simulated gait, and analyzing the resulting contact stress profiles using a normalized cross-correlation algorithm, we tested the hypothesis that common changes in dynamic contact stress profiles exist after ACL injury...
August 16, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28831536/results-with-eight-and-a-half%C3%A2-years-average-follow-up-on-two-hundred-and-eight-e-motion-fp%C3%A2-knee-prostheses-fitted-using-computer-navigation-for-knee-osteoarthritis-in-patients-with-over-ten-degrees-genu-varum
#20
Dominique Saragaglia, Loic Sigwalt, Julia Gaillot, Vincent Morin, Brice Rubens-Duval, Régis Pailhé
PURPOSE: The aim of this study was to analyse the clinical and radiographic results of 208 e-Motion® posterior cruciate-retaining, mobile bearing prostheses (BBraun-Aesculap, Tuttlingen, Germany) fitted using computer navigation, for knee osteoarthritis with a genu varum greater than 10°. METHODS: One hundred ninety-two patients were operated on with 208 e-Motion® prostheses fitted, between January 2006 and December 2011, using the OrthoPilot® computer navigation system...
August 22, 2017: International Orthopaedics
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