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Lateral meniscus tear

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https://www.readbyqxmd.com/read/27919916/posterior-meniscal-root-repairs-outcomes-of-an-anatomic-transtibial-pull-out-technique
#1
Robert F LaPrade, Lauren M Matheny, Samuel G Moulton, Evan W James, Chase S Dean
BACKGROUND: Outcomes after transtibial pull-out repair for posterior meniscal root tears remain underreported, and factors that may affect outcomes are unknown. PURPOSE/HYPOTHESIS: The purpose of this study was to compare patient-centered outcomes after transtibial pull-out repair for posterior root tears in patients <50 and ≥50 years of age. We hypothesized that improvement in function and activity level at minimum 2-year follow-up would be similar among patients <50 years of age compared with patients ≥50 years and among patients undergoing medial versus lateral root repairs...
December 5, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27911285/the-relation-between-chondromalacia-patella-and-meniscal-tear-and-the-sulcus-angle-trochlear-depth-ratio-as-a-powerful-predictor
#2
Hatice Resorlu, Coskun Zateri, Gurdal Nusran, Ferdi Goksel, Nilufer Aylanc
PURPOSE: To investigate the relation between chondromalacia patella and the sulcus angle/trochlear depth ratio as a marker of trochlear morphology. In addition, we also planned to show the relationship between meniscus damage, subcutaneous adipose tissue thickness as a marker of obesity, patellar tilt angle and chondromalacia patella. METHODS: Patients with trauma, rheumatologic disease, a history of knee surgery and patellar variations such as patella alba and patella baja were excluded...
November 25, 2016: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/27899354/collagenous-ultrastructure-of-the-discoid-meniscus-a-transmission-electron-microscopy-study
#3
Young-Hee Choi, Young-Jin Seo, Jong Mun Ha, Koo Hyun Jung, Jeehyoung Kim, Si Young Song
BACKGROUND: The collagen ultrastructure of the discoid lateral meniscus (DLM) has not been precisely defined. PURPOSE: To investigate the ultrastructure of the DLM, focusing on its collagen fibers, and to compare the collagen net architecture between intact and torn DLMs using the Collagen Meniscal Architecture (CMA) scoring system. STUDY DESIGN: Descriptive laboratory study. METHODS: Thirty specimens were taken from 30 patients with a diagnosis of a complete DLM using a 1-piece technique...
November 29, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27894146/variables-associated-with-chondral-and-meniscal-injuries-in-anterior-cruciate-ligament-surgery
#4
E Lyle Cain, Glenn S Fleisig, Brent A Ponce, Hikel A Boohaker, Martha P George, Gerald McGwin, James R Andrews, Lawrence J Lemak, William G Clancy, Jeffrey R Dugas
This article aims to evaluate factors associated with chondral and meniscal lesions in primary and revision anterior cruciate ligament (ACL) reconstructions. ACL reconstructions from 2001 to 2008 at a single institution were retrospectively analyzed. Logistic regression was used to estimate the association between chondral and meniscal injuries and age, gender, tear chronicity, additional ligamentous injuries, sport type, and participation level. Of the 3,040 ACL reconstructions analyzed, 90.4% were primary reconstructions and 9...
November 28, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27752751/the-utility-of-the-radiographic-condylar-cut-off-sign-in-children-and-adolescents-with-complete-discoid-lateral-meniscus
#5
Chul-Won Ha, Jae Won Jang, Manyoung Kim, Sang-Eun Na, Han-Jun Lee, Yong-Beom Park
PURPOSE: The purpose of this study was to determine the utility of the radiographic 'condylar cut-off sign' to detect the presence of a complete discoid lateral meniscus in children and adolescents. METHODS: The radiographs of 166 subjects younger than 17 with complete discoid lateral meniscus as well as 153 age- and sex-matched subjects with normal meniscus were reviewed. The condylar cut-off sign, judged by the prominence ratio of the medial and lateral femoral condyles in tunnel view radiographs, was assessed...
October 17, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27726749/posterior-root-meniscal-tears-preoperative-intraoperative-and-postoperative-imaging-for-transtibial-pullout-repair
#6
Andrew R Palisch, Ronald R Winters, Marc H Willis, Collin D Bray, Theodore B Shybut
The menisci play an important biomechanical role in axial load distribution of the knees by means of hoop strength, which is contingent on intact circumferentially oriented collagen fibers and meniscal root attachments. Disruption of the meniscal root attachments leads to altered biomechanics, resulting in progressive cartilage loss, osteoarthritis, and subchondral edema, with the potential for development of a subchondral insufficiency fracture. Identification of meniscal root tears at magnetic resonance (MR) imaging is crucial because new arthroscopic surgical techniques (transtibial pullout repair) have been developed to repair meniscal root tears and preserve the tibiofemoral cartilage of the knee...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/27726244/knee-imaging-rapid-three-dimensional-fast-spin-echo-using-compressed-sensing
#7
Richard Kijowski, Humberto Rosas, Alexey Samsonov, Kevin King, Rob Peters, Fang Liu
PURPOSE: To investigate the feasibility of using compressed sensing (CS) to accelerate three-dimensional fast spin-echo (3D-FSE) imaging of the knee. MATERIALS AND METHODS: A 3D-FSE sequence was performed at 3T with CS (CUBE-CS with 3:16-minute scan time) and without CS (CUBE with 4:44-minute scan time) twice on the knees of 10 healthy volunteers to assess signal-to-noise ratio (SNR) using the addition-subtraction method and once on the knees of 50 symptomatic patients to assess diagnostic performance...
October 11, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27695981/arthroscopic-treatment-of-symptomatic-discoid-meniscus-in-children
#8
Tetsuo Hagino, Satoshi Ochiai, Shinya Senga, Takashi Yamashita, Masanori Wako, Takashi Ando, Hirotaka Haro
PURPOSE: To study discoid meniscus in children who underwent arthroscopic surgery at our center. SUBJECTS AND METHODS: Thirty-four patients (39 knees) younger than 15 years with discoid lateral meniscus (mean age, 12.9 years; 13 males, 21 females) who underwent arthroscopic surgeries since 2007 were studied. The surgical procedure consisted of, in principle, saucerization with additional suture repair in the case of meniscal instability at the peripheral rim of the residual meniscus...
October 1, 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27628912/comparison-of-clinical-mri-and-arthroscopic-assessments-of-chronic-acl-injuries-meniscal-tears-and-cartilage-defects
#9
L Felli, G Garlaschi, A Muda, A Tagliafico, M Formica, A Zanirato, M Alessio-Mazzola
PURPOSE: The aim of this study was to compare the accuracy of clinical examination to that of MRI evaluated by two independent radiologists for the diagnosis of meniscal tears and chronic anterior cruciate ligament injuries and to assess the MRI accuracy in the diagnosis of cartilage defects. METHODS: Seventy-six consecutive patients with suspected intra-articular knee pathology were prospectively evaluated by objective examination, 1.5 T MRI, re-examined by trained radiologist and arthroscopy...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27624439/augmented-repair-of-radial-meniscus-tear-with-biomimetic-electrospun-scaffold-an-in-vitro-mechanical-analysis
#10
Benjamin B Rothrauff, Piya-On Numpaisal, Brian B Lauro, Peter G Alexander, Richard E Debski, Volker Musahl, Rocky S Tuan
BACKGROUND: Large radial tears that disrupt the circumferential fibers of the meniscus are associated with reduced meniscal function and increased risk of joint degeneration. Electrospun fibrous scaffolds can mimic the topography and mechanics of fibrocartilaginous tissues and simultaneously serve as carriers of cells and growth factors, yet their incorporation into clinically relevant suture repair techniques for radial meniscus tears is unexplored. The purposes of this study were to (1) evaluate the effect of fiber orientation on the tensile properties and suture-retention strength of multilayered electrospun scaffolds and (2) determine the mechanical effects of scaffold inclusion within a surgical repair of a simulated radial meniscal tear...
December 2016: Journal of Experimental Orthopaedics
https://www.readbyqxmd.com/read/27604189/traumatic-and-degenerative-meniscus-tears-have-different-gene-expression-signatures
#11
Robert H Brophy, Linda J Sandell, Muhammad Farooq Rai
BACKGROUND: Meniscus tears are classified as traumatic or degenerative based on the tear pattern. There is little evidence demonstrating biological differences between the 2 tear types. HYPOTHESIS: Gene expression signatures in the injured meniscus are different between traumatic (vertical) and degenerative (complex, horizontal, or flap) tears. STUDY DESIGN: Controlled laboratory study. METHODS: Samples of the torn meniscus from the white-white zone were removed at the time of clinically indicated partial meniscectomy from 48 patients (37 with degenerative tears and 11 with traumatic tears)...
September 7, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27552979/mr-imaging-of-the-anatomy-of-the-anterior-horn-of-the-medial-meniscus
#12
Tineke De Coninck, Frederik Vanrietvelde, Patrick Seynaeve, Peter Verdonk, Koenraad Verstraete
BACKGROUND: In cadaveric and arthroscopic studies different insertion locations of the anterior horn of the medial meniscus (AHMM) have been described. PURPOSE: To investigate if the different insertion locations of the AHMM, as described in cadaveric studies, can be determined on magnetic resonance imaging (MRI). MATERIAL AND METHODS: MR images of 100 patients without meniscal tears on MRI were retrospectively evaluated. Two observers classified the AHMM insertion based on its position relative to the anterior tibial edge and the medial tibial spine...
August 23, 2016: Acta Radiologica
https://www.readbyqxmd.com/read/27544885/outcome-of-cartilage-at-12years-of-follow-up-after-anterior-cruciate-ligament-reconstruction
#13
O Cantin, S Lustig, F Rongieras, D Saragaglia, N Lefèvre, N Graveleau, C Hulet
INTRODUCTION: In cases of chronic anterior laxity, reconstruction of the anterior cruciate ligament (ACL) can slow the development of osteoarthritis. This study was conducted to determine the overall prevalence of osteoarthritis and to identify the risk factors after ACL reconstruction. HYPOTHESIS: Meniscus tears, time from injury to surgery, body mass index (BMI), residual laxity, and cartilage lesions influence the progression towards osteoarthritis. MATERIALS AND METHODS: This multicenter, retrospective study on the outcome of cruciate ligaments at 12 years of follow-up was conducted within the 2014 SOFCOT Symposium...
August 17, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27540558/a-case-control-study-comparing-bone-bruising-and-intra-articular-injuries-in-patients-undergoing-anterior-cruciate-ligament-reconstruction-with-and-without-medial-collateral-ligament-tears
#14
Melissa A Kluczynski, John M Marzo, Michael A Rauh, Geoffrey A Bernas, Leslie J Bisson
BACKGROUND: Concomitant injuries can occur in patients with combined anterior cruciate ligament (ACL) and medial collateral ligament (MCL) tears; however, no studies have compared these injuries in patients undergoing ACL reconstruction with an MCL tear to those with an intact MCL. PURPOSE: To compare bone bruising, meniscus tears, and chondral lesions in patients undergoing ACL reconstruction with an MCL tear (cases) to those with an intact MCL (controls). STUDY DESIGN: Case-control study; Level of evidence, 3...
August 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27522593/temporal-relation-of-meniscal-tear-incidence-severity-and-outcome-scores-in-adolescents-undergoing-anterior-cruciate-ligament-reconstruction
#15
Stephen D Zoller, Kristin A Toy, Peter Wang, Edward Ebramzadeh, Richard E Bowen
PURPOSE: Anterior cruciate ligament (ACL) rupture is increasingly common in adolescents. Time between ACL rupture and surgical reconstruction, surgical wait time, is related to concurrent meniscal tear incidence and possibly tear pattern. This study defines the relationship between meniscal tear characteristics and surgical wait time in adolescents with ACL rupture. METHODS: One-hundred and twenty-one consecutive adolescent (median age 16.1 years, range 9-19 years) ACL rupture patients undergoing primary ACL reconstruction were studied...
August 13, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27494952/symptomatic-discoid-lateral-meniscus-a-clinical-and-arthroscopic-study-in-a-chinese-population
#16
Gang Chen, Zhong Zhang, Jian Li
BACKGROUND: Discoid lateral meniscus (DLM) is relatively common in East Asia..Symptomatic discoid lateral meniscus (SDLM) is an important indication for knee arthroscopic surgery. However, studies investigating SDLM are rare. The purpose of this study was to evaluate the clinical characteristics and intra-articular variants of SDLM in a Chinese population. METHODS: We retrospectively reviewed all patients with SDLM from January 2005 to December 2014 in our hospital...
2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27462536/lateral-meniscal-allograft-transplantation-the-bone-trough-technique
#17
Jorge Chahla, Javier Olivetto, Chase S Dean, Raphael Serra Cruz, Robert F LaPrade
The lateral meniscus plays a critical role in the stability and health of the knee. Treating patients who have undergone a total lateral meniscectomy or functional equivalent is challenging, especially young and active patients. Current literature regarding meniscal tears supports that repair should be the first surgical option. Moreover, it is recommended to preserve as much meniscal tissue as possible. In cases in which a total or functional meniscectomy is a pre-existing condition, a lateral meniscal allograft transplantation is a possible option...
April 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27342983/reliability-of-magnetic-resonance-imaging-in-evaluating-meniscal-and-cartilage-injuries-in-anterior-cruciate-ligament-deficient-knees
#18
Kenneth Pak Leung Wong, Audrey XinYun Han, Jeannie Leh Ying Wong, Dave Yee Han Lee
PURPOSE: The accuracy of magnetic resonance (MR) imaging in assessing meniscal and cartilage injuries in anterior cruciate ligament (ACL)-deficient knees as compared to arthroscopy was evaluated in the present study. METHODS: The results of all preoperative MR imaging performed within 3 months prior to the ACL reconstruction were compared against intraoperative arthroscopic findings. A total of 206 patients were identified. The location and type of meniscal injuries as well as the location and grade of the cartilage injuries were studied...
June 24, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27339584/acute-patellar-dislocation-with-multiple-ligament-injuries-after-knee-dislocation-and-single-session-reconstruction
#19
Gokay Gormeli, Cemile Ayse Gormeli, Mustafa Karakaplan, Sukru Gurbuz, Zeynep Ozdemir, Mustafa Ozer
Knee dislocation is a relatively rare condition of all orthopaedic injuries. Accompanying multiple ligament injuries are common after knee dislocations. A 41-year-old male presented to the emergency department suffering from right knee dislocation in June 2013. The patient had anterior cruciate ligament, medial collateral ligament (MCL), medial patellofemoral ligament (MPFL) rupture, and lateral meniscal tear. A single-bundle anatomic reconstruction, medial collateral ligament reconstruction, medial patellofemoral ligament reconstruction and meniscus repair were performed in single session...
June 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27339397/prevalence-and-classification-of-injuries-of-anterolateral-complex-in-acute-anterior-cruciate-ligament-tears
#20
Andrea Ferretti, Edoardo Monaco, Mattia Fabbri, Barbara Maestri, Angelo De Carli
PURPOSE: To report on the prevalence of injuries of the lateral compartment occurring in cases of apparently isolated acute anterior cruciate ligament (ACL) tears and to present a classification system of anterolateral complex injuries based on the data obtained. METHODS: Sixty patients operated on for an acute apparently isolated ACL tear, revealed by clinical examination and confirmed by magnetic resonance imaging, were prospectively selected. The lateral compartment was exposed and injuries were detected...
June 21, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
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