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Knee ligamentous tears

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https://www.readbyqxmd.com/read/28301221/diagnosis-of-internal-derangement-of-the-knee-volume-isotropic-turbo-spin-echo-acquisition-mri-with-fat-suppression-versus-without-fat-suppression
#1
Ji Hyun Lee, Young Cheol Yoon, Ki Jeong Park, Joon Ho Wang
OBJECTIVE: The purpose of this study was to compare 3D volume isotropic turbo spin-echo acquisition (VISTA) MRI with and without fat suppression for use in evaluating ligaments, menisci, and cartilage. MATERIALS AND METHODS: Two radiologists retrospectively and independently reviewed 71 MRI studies. Each study consisted of 3D intermediate-weighted VISTA images with fat suppression and without fat suppression. The presence of tears of the anterior cruciate and posterior cruciate ligaments, tears of the medial and lateral menisci, and cartilaginous defects was evaluated...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28298067/incidence-of-second-anterior-cruciate-ligament-tears-1990-2000-and-associated-factors-by-geographic-locale
#2
Nathan D Schilaty, Nathaniel A Bates, Thomas L Sanders, Aaron J Krych, Michael J Stuart, Timothy E Hewett
BACKGROUND: Second anterior cruciate ligament (ACL) tears after reconstruction occur at a reported rate of 20% to 30%. This high frequency indicates that there may be factors that predispose an athlete to graft failure and ACL tears of the contralateral knee. PURPOSE: To determine the incidence of second ACL injuries in a geographic population-based cohort over a 10-year observation period. STUDY DESIGN: Descriptive epidemiological study. METHODS: International Classification of Diseases, 9th Revision (ICD-9) codes relevant to the diagnosis of an ACL tear and the procedure code for ACL reconstruction were searched across the Rochester Epidemiology Project, a multidisciplinary county database, between the years of 1990 and 2000...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28298066/effect-of-fatigue-protocols-on-lower-limb-neuromuscular-function-and-implications-for-anterior-cruciate-ligament-injury-prevention-training
#3
Sue D Barber-Westin, Frank R Noyes
BACKGROUND: Approximately two-thirds of anterior cruciate ligament (ACL) tears are sustained during noncontact situations when an athlete is cutting, pivoting, decelerating, or landing from a jump. Some investigators have postulated that fatigue may result in deleterious alterations in lower limb biomechanics during these activities that could increase the risk of noncontact ACL injuries. However, prior studies have noted a wide variation in fatigue protocols, athletic tasks studied, and effects of fatigue on lower limb kinetics and kinematics...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28298056/outcomes-after-biologically-augmented-isolated-meniscal-repair-with-marrow-venting-are-comparable-with-those-after-meniscal-repair-with-concomitant-anterior-cruciate-ligament-reconstruction
#4
Chase S Dean, Jorge Chahla, Lauren M Matheny, Justin J Mitchell, Robert F LaPrade
BACKGROUND: Meniscal repair in the setting of anterior cruciate ligament (ACL) reconstruction has demonstrated superior outcomes compared with isolated meniscal repair. Limited evidence exists for the effects of biological augmentation in isolated meniscal repair, particularly as compared with meniscal repair with concomitant ACL reconstruction. Purpose/Hypothesis: The purpose of this study was to compare the outcomes and survivorship of meniscal repair in 2 cohorts of patients: meniscal repair with biological augmentation using a marrow venting procedure (MVP) of the intercondylar notch, and meniscal repair with concomitant ACL reconstruction...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28298053/passive-anterior-tibial-subluxation-in-the-setting-of-anterior-cruciate-ligament-injuries
#5
Lucas S McDonald, Jelle P van der List, Kristofer J Jones, Hendrik A Zuiderbaan, Joseph T Nguyen, Hollis G Potter, Andrew D Pearle
BACKGROUND: Static anterior tibial subluxation after an anterior cruciate ligament (ACL) injury highlights the abnormal relationship between the tibia and femur in patients with ACL insufficiency, although causal factors including injuries to secondary stabilizers or the time from injury to reconstruction have not been examined. PURPOSE: To determine static relationships between the tibia and femur in patients with various states of ACL deficiency and to identify factors associated with anterior tibial subluxation...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28282214/clinical-and-radiographic-outcomes-of-meniscus-surgery-and-future-targets-for-biologic-intervention-a-review-of-data-from-the-moon-group
#6
Robert W Westermann, Morgan Jones, David Wasserstein, Kurt P Spindler
Meniscus injury and treatment occurred with the majority of anterior cruciate ligament reconstructions (ACLR) in the multicenter orthopaedic outcomes (MOON) cohort. We describe the patient reported outcomes, radiographic outcomes and predictors of pain from meniscus injuries and treatment in the setting of ACLR. Patient reported outcomes improve significantly following meniscus repair with ACLR, but differences exist based on the meniscus injury laterally (medial or lateral). Patients undergoing medial meniscus repair have worse patient-reported outcomes and more pain compared to those with uninjured menisci...
March 10, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28255568/association-between-lateral-posterior-tibial-slope-body-mass-index-and-acl-injury-risk
#7
Katherine M Bojicic, Mélanie L Beaulieu, Daniel Y Imaizumi Krieger, James A Ashton-Miller, Edward M Wojtys
BACKGROUND: While body mass index (BMI), a modifiable parameter, and knee morphology, a nonmodifiable parameter, have been identified as risk factors for anterior cruciate ligament (ACL) rupture, the interaction between them remains unknown. An understanding of this interaction is important because greater compressive axial force (perhaps due to greater BMI) applied to a knee that is already at an increased risk because of its geometry, such as a steep lateral posterior tibial slope, could further increase the probability of ACL injury...
February 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28253950/-simultaneous-traumatic-rupture-of-patellar-ligament-and-contralateral-rupture-of-quadriceps-femoris-muscle
#8
V Hladký, V Havlas
Our paper presents a unique case of a 64-year-old patient after a fall, treated with oral antidiabetic drugs for type II diabetes mellitus. Following a series of examinations, a bilateral injury was diagnosed - patellar ligament tear on the right side and rupture of quadriceps femoris muscle on the left side. It is a rare injury, complicated by simultaneous involvement of both knee joints. The used therapy consisted of a bilateral surgery followed by gradual verticalisation, first with the support of a walking frame and later with the use of forearm crutches...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28245853/a-neuromuscular-exercise-programme-versus-standard-care-for-patients-with-traumatic-anterior-shoulder-instability-study-protocol-for-a-randomised-controlled-trial-the-sinex-study
#9
Henrik Eshoj, Sten Rasmussen, Lars Henrik Frich, Inge Hvass, Robin Christensen, Steen Lund Jensen, Jens Søndergaard, Karen Søgaard, Birgit Juul-Kristensen
BACKGROUND: Anterior shoulder dislocation is a common injury and may have considerable impact on shoulder-related quality of life (QoL). If not warranted for initial stabilising surgery, patients are mostly left with little to no post-traumatic rehabilitation. This may be due to lack of evidence-based exercise programmes. In similar, high-impact injuries (e.g. anterior cruciate ligament tears in the knee) neuromuscular exercise has shown large success in improving physical function and QoL...
February 28, 2017: Trials
https://www.readbyqxmd.com/read/28243704/patients-with-high-grade-pivot-shift-phenomenon-are-associated-with-higher-prevalence-of-anterolateral-ligament-injury-after-acute-anterior-cruciate-ligament-injuries
#10
Guan-Yang Song, Hui Zhang, Guan Wu, Jin Zhang, Xin Liu, Zhe Xue, Yi Qian, Hua Feng
PURPOSE: To compare the prevalence of concomitant anterolateral ligament (ALL) injury between patients with high-grade (grades II and III) pivot-shift and those with low-grade (grades 0 and I) pivot-shift phenomenon after acute anterior cruciate ligament (ACL) injuries. METHODS: Sixty-eight patients with an acute ACL injury who showed high-grade (grades II and III) pivot-shift phenomenon were enrolled as the study group. They were matched in a 1:1 fashion to another 68 ACL-injured control participants who showed low-grade (grades 0 and I) pivot-shift phenomenon during the same study period...
February 27, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28219089/arthroscopic-treatment-of-isolated-hoffa-fractures
#11
Ersin Ercin, Emre Baca, Cemal Kural
The goal of this study was to evaluate the results of a novel method, arthroscopic fixation of isolated Hoffa fractures.This is a prospective, case series and set at Level 1 trauma center. A total of eight patients with isolated Hoffa fractures who were operated by arthroscopic screw fixation method in the anterior posterior direction with 6.5 mm cannulated screws were followed up prospectively. Same surgical method used for all patients. All patients underwent the same rehabilitation program and active range of motion (ROM) exercises were started immediately...
February 20, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28217572/arthroscopic-patterns-of-the-poster-medial-aspect-of-the-knee-joint-classification-of-the-gastrocnemius-semimembranosus-gateway-and-its-relationship-with-baker-s-cyst
#12
Vittorio Calvisi, Carmine Zoccali
BACKGROUND: The gastrocnemius-semimembranosus bursa may communicate with the knee joint. The arthroscopic anatomy of the posteromedial aspect varies depending on the angle of the oblique popliteal ligament, the level at which it crosses the medial gastrocnemius tendon, and its relationship with the capsular joint and synovia. The aim of this paper is to identify possible patterns, and to evaluate their characteristics and their relationship with Baker's cyst. METHODS: data archived from 185 consecutive arthroscopies were evaluated; an anatomic description and classification was carried out; the percentages of association with BC and the associated pathologies were reported...
October 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/28214478/accuracy-of-64-section-mdct-in-the-diagnosis-of-cruciate-ligament-tears
#13
E J Heffernan, D E Moran, J F Gerstenmaier, C J McCarthy, C Hegarty, C J McMahon
AIM: To evaluate the accuracy of non-arthrographic 64-section multidetector computed tomography (CT) in the assessment of cruciate ligament tears. A secondary goal was to determine its accuracy in the diagnosis of additional soft-tissue injuries around the knee. MATERIALS AND METHODS: Forty consecutive outpatients underwent same-day magnetic resonance imaging (MRI) and 64-slice multidetector CT (MDCT) of the knee in this prospective study. MDCT images were independently evaluated for integrity of the anterior (ACL) and posterior cruciate ligaments (PCL), medial and lateral menisci, and medial and lateral collateral ligaments...
February 15, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28203112/bone-contusion-progression-from-traumatic-knee-injury-association-of-rate-of-contusion-resolution-with-injury-severity
#14
Douglas R Pedersen, Georges Y El-Khoury, Dan R Thedens, Mothana Saad-Eldine, Phinit Phisitkul, Annunziato Amendola
BACKGROUND: Bone contusions are frequently encountered in magnetic resonance imaging (MRI) evaluation of knee anterior cruciate ligament (ACL) injuries. Their role as indicators of injury severity remains unclear, primarily due to indeterminate levels of joint injury forces and to a lack of preinjury imaging. PURPOSE: The purpose of this study was to 1) quantify bone contusion pathogenesis following traumatic joint injuries using fixed imaging follow-ups, and 2) assess the feasibility of using longitudinal bone contusion volumes as an indicator of knee injury severity...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28190582/correlation-of-parameters-on-preoperative-ct-images-with-intra-articular-soft-tissue-injuries-in-acute-tibial-plateau-fractures-a-review-of-132-patients-receiving-arif
#15
Hao-Che Tang, I-Jung Chen, Yu-Cheng Yeh, Chun-Jui Weng, Shih-Sheng Chang, Alvin Chao-Yu Chen, Yi-Sheng Chan
INTRODUCTION: Tibial plateau fractures often occur in conjunction with soft-tissue injuries of knees. The hypothesis of this study is that parameters of CT imaging can predict intra-articular soft-tissue injuries. PATIENTS AND METHODS: Patients who underwent arthroscopically assisted reduction and internal fixation (ARIF) for acute tibial plateau fractures performed by a single orthopedic surgeon between 2005 and 2015 were included in this retrospective study. Patients with concomitant ipsilateral femoral fractures, who had received revision surgery or who had undergone index surgery more than 30days from the event were excluded...
January 30, 2017: Injury
https://www.readbyqxmd.com/read/28178094/reconstruction-of-symptomatic-congenital-anterior-cruciate-ligament-insufficiency
#16
Brant C Sachleben, Adam Y Nasreddine, Jeffrey J Nepple, Frances A Tepolt, James R Kasser, Mininder S Kocher
BACKGROUND: Hypoplasia or congenital absence of the anterior cruciate ligament (ACL) is a rare disorder occurring in ∼1 in every 6000 births. Although some patients with hypoplasia or agenesis of the ACL may not complain of instability, others desire to participate in more demanding activities that require the stability of a competent ACL. There are limited reports of surgical treatment of this patient population. The purpose of this study was to report ACL reconstruction in a case series of patients with symptomatic congenital ACL deficiency...
February 7, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28176368/pharmacological-inhibition-of-myostatin-protects-against-skeletal-muscle-atrophy-and-weakness-after-anterior-cruciate-ligament-tear
#17
Caroline Nw Wurtzel, Jonathan P Gumucio, Jeremy A Grekin, Roger K Khouri, Alan J Russell, Asheesh Bedi, Christopher L Mendias
Anterior cruciate ligament (ACL) tears are among the most frequent knee injuries in sports medicine, with tear rates in the US up to 250,000 per year. Many patients who suffer from ACL tears have persistent atrophy and weakness even after considerable rehabilitation. Myostatin is a cytokine that directly induces muscle atrophy, and previous studies rodent models and patients have demonstrated an upregulation of myostatin after ACL tear. Using a preclinical rat model, our objective was to determine if the use of a bioneutralizing antibody against myostatin could prevent muscle atrophy and weakness after ACL tear...
February 8, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28164045/ipsilateral-medial-and-lateral-discoid-meniscus-with-medial-meniscus-tear
#18
Kengo Shimozaki, Junsuke Nakase, Yoshinori Ohashi, Hitoaki Numata, Takeshi Oshima, Yasushi Takata, Hiroyuki Tsuchiya
INTRODUCTION: Discoid meniscus is a well-documented knee pathology, and there are many cases of medial or lateral discoid meniscus reported in the literature. However, ipsilateral concurrent medial and lateral discoid meniscus is very rare, and only a few cases have been reported. Herein, we report a case of concurrent medial and lateral discoid meniscus. CASE REPORT: A 27-year-old Japanese man complained of pain on medial joint space in his right knee that was diagnosed as a complete medial and lateral discoid meniscus...
September 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28160930/editorial-commentary-the-hip-bone-s-connected-to-the-knee-bone-but-correlation-does-not-equal-causation-the-association-of-hip-motion-femoroacetabular-impingement-and-anterior-cruciate-ligament-injury
#19
EDITORIAL
Joshua D Harris
Patients with anterior cruciate ligament (ACL) injury had significantly less hip rotational motion (internal rotation [IR] and sum of IR and external rotation) than control subjects without ACL tears. For each hip IR increase of 10°, the odds of sustaining an ACL rupture decreased by a factor of 0.419. Although this investigation does not prove (causation) that loss of hip rotational motion causes an ACL tear, it does continue to complement the growing and evolving literature base showing an upstream or downstream association (correlation) of decreased hip motion on adjacent structures...
February 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28154811/closed-reduction-of-irreducible-posterolateral-knee-dislocation-a-case-report
#20
Satoshi Tateda, Atsushi Takahashi, Toshimi Aizawa, Jutaro Umehara
INTRODUCTION: Posterolateral rotary knee dislocation is a rare orthopedic injury that is considered to be irreducible by closed reduction because of soft tissue incarceration. Here, we present a case of posterolateral rotary knee dislocation, which was reduced by closed manipulation. CASE REPORT: The patientwas a 33-year-old man who sustained a twisting injury to his right knee that was diagnosed as posterolateral rotary knee dislocation by plain radiographs and the characteristic physical finding known as a dimple sign...
April 2016: Journal of Orthopaedic Case Reports
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