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ACL tear

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https://www.readbyqxmd.com/read/28214478/accuracy-of-64-section-mdct-in-the-diagnosis-of-cruciate-ligament-tears
#1
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/28210653/biologic-approaches-for-the-treatment-of-partial-tears-of-the-anterior-cruciate-ligament-a-current-concepts-review
#2
Ignacio Dallo, Jorge Chahla, Justin J Mitchell, Cecilia Pascual-Garrido, John A Feagin, Robert F LaPrade
BACKGROUND: Anterior cruciate ligament reconstruction (ACLR) has been established as the gold standard for treatment of complete ruptures of the anterior cruciate ligament (ACL) in active, symptomatic individuals. In contrast, treatment of partial tears of the ACL remains controversial. Biologically augmented ACL-repair techniques are expanding in an attempt to regenerate and improve healing and outcomes of both the native ACL and the reconstructed graft tissue. PURPOSE: To review the biologic treatment options for partial tears of the ACL...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28203112/bone-contusion-progression-from-traumatic-knee-injury-association-of-rate-of-contusion-resolution-with-injury-severity
#3
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/28197894/anterior-cruciate-ligament-reconstruction-mr-imaging-findings
#4
REVIEW
M Zappia, R Capasso, D Berritto, N Maggialetti, C Varelli, G D'Agosto, M T Martino, M Carbone, L Brunese
More than two million people tear their anterior cruciate ligament (ACL) each year, and ACL reconstruction occupies a significant proportion of everyday orthopedic practice, being one of the most commonly performed sports medicine surgical procedures. Patients with postoperative symptoms are frequently imaged to monitor ligament grafts and to identify complications. Given the number of patients undergoing ACL reconstruction, knowledge of the potential complications of this surgery is essential for radiologists...
February 14, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28191599/short-term-results-of-anterior-cruciate-ligament-augmentation-in-professional-and-amateur-athletes
#5
Hamidreza Yazdi, Ali Torkaman, Morteza Ghahramani, Amin Moradi, Ara Nazarian, Mohammad Ghorbanhoseini
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction is a widely accepted procedure; however, controversies exist about ACL augmentation. The purpose of this study was to assess the clinical outcomes of ACL augmentation in professional and amateur athletes with isolated single bundle ACL tears. MATERIALS AND METHODS: A consecutive series of professional and amateur athletes with partial ACL tears who underwent selective bundle reconstruction were analyzed...
February 13, 2017: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
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
#6
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
#7
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
#8
Caroline N W Wurtzel, Jonathan P Gumucio, Jeremy A Grekin, Roger K Khouri, Carol S Davis, 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/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
#9
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/28146402/a-multicenter-study-of-early-anti-inflammatory-treatment-in-patients-with-acute-anterior-cruciate-ligament-tear
#10
Christian Lattermann, Cale A Jacobs, Mary Proffitt Bunnell, Laura J Huston, Lee G Gammon, Darren L Johnson, Emily K Reinke, Janet L Huebner, Virginia B Kraus, Kurt P Spindler
BACKGROUND: It is increasingly recognized that biochemical abnormalities of the joint precede radiographic abnormalities of posttraumatic osteoarthritis (PTOA) by as much as decades. A growing body of evidence strongly suggests that the progression from anterior cruciate ligament (ACL) injury to PTOA is multifactorial, involving the interplay between biomechanical disturbances and biochemical homeostasis of articular cartilage. PURPOSE: The purposes of this randomized study using an acute ACL injury model were to (1) evaluate the natural progression of inflammatory and chondrodegenerative biomarkers, (2) evaluate the relationship between subjective reports of pain and inflammatory and chondrodegenerative biomarkers, and (3) determine if postinjury arthrocentesis and corticosteroid injection offer the ability to alter this biochemical cascade...
February 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28142351/epidemiology-of-surgically-managed-anterior-cruciate-ligament-ruptures-in-a-sports-surgery-practice
#11
Andrew Arjun Sayampanathan, Bryan Koh Thean Howe, Hamid Rahmatullah Bin Abd Razak, Chong Hwei Chi, Andrew Hwee Chye Tan
INTRODUCTION: Anterior cruciate ligament (ACL) tears are common knee injuries, especially among sportsmen and sportswomen. The aim of this study is to better understand the epidemiology of surgically managed ACL tears sustained in our institution. METHODS: All patients who underwent arthroscopic ACL reconstruction by the senior author of this article in Singapore from 2008 to 2013 were studied. Patients who were diagnosed clinically and/or radiologically to have a complete tear of the ACL and subsequently underwent arthroscopic ACL reconstruction were included...
January 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28139332/validity-of-rotational-laxity-coupled-with-anterior-translation-of-the-knee-a-cadaveric-study-comparing-radiostereometry-and-the-rotab%C3%A2
#12
A Senioris, T Rousseau, M L'Hermette, S Gouzy, F Duparc, F Dujardin
BACKGROUND: In current practice, anterior cruciate ligament (ACL) tears can be diagnosed using several devices to measure anterior tibial translation and rotational knee laxity, but these measures are never collected together. The Rotab®, which yields simultaneous measurements of anterior tibial translation and passive lower limb rotation under stress, would therefore be advantageous in current practice, but its reliability has never been tested. AIM OF STUDY: To evaluate the accuracy and reliability of the Rotab® compared to the reference system, radiostereometric analysis (RSA)...
January 27, 2017: Knee
https://www.readbyqxmd.com/read/28130030/biomarker-changes-in-anterior-cruciate-ligament-deficient-knees-compared-with-healthy-controls
#13
Daniel J Kaplan, Vanessa G Cuellar, Laith M Jazrawi, Eric J Strauss
PURPOSE: To establish how synovial fluid biomarker concentrations change in patients after anterior cruciate ligament (ACL) tears, with and without associated cartilage injury, with comparisons made to healthy controls. METHODS: Patients were prospectively enrolled between January 2013 and December 2014. Inclusion criteria included any patient undergoing knee arthroscopy. Patients with a confirmed ACL tear were allocated to either the ACL tear with cartilage injury group or the ACL tear without cartilage injury group based on intraoperative assessment...
January 24, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28116257/an-unusual-case-of-partial-anterior-cruciate-ligament-acl-tear-secondary-to-a-glass-foreign-body-in-an-adolescent-knee-joint
#14
Shishir S M, Abhay Harsh K, Kanagasabai R, James J Gnanadoss
INTRODUCTION: Various types of foreign bodies have been removed from the knee joint. We report an unusual case of partial anterior cruciate ligament (ACL) tear secondary to a glass foreign body in an adolescent knee joint. CASE REPORT: A 13-year-old boy presented with pain, swelling and deformity of the left knee since 4 days. X-Ray revealed a foreign body in the left knee joint. The glass foreign body remained in the subcutaneous tissue for few days and later migrated into the knee joint...
July 2016: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28102713/factors-associated-with-the-status-of-meniscal-tears-following-meniscal-repair-concomitant-with-anterior-cruciate-ligament-reconstruction
#15
Takehiko Matsushita, Kanto Nagai, Daisuke Araki, Toshikazu Tanaka, Tomoyuki Matsumoto, Kotaro Nishida, Masahiro Kurosaka, Ryosuke Kuroda
Purpose Anterior cruciate ligament (ACL) injuries are often accompanied by meniscal tears. Meniscal repair is typically performed during ACL reconstruction. However, retear of the meniscus after repair is frequent. The purpose of this study was to analyze the factors associated with meniscal healing after meniscal repair concomitant with ACL reconstruction. Materials and Methods Eighty-seven meniscal repairs in 87 patients who received meniscal repair combined with ACL reconstruction and received second-look arthroscopy at a mean of postoperatively 15...
January 19, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28090444/bone-marrow-edema-like-lesions-bmels-are-associated-with-higher-t1%C3%AF-and-t2-values-of-cartilage-in-anterior-cruciate-ligament-acl-reconstructed-knees-a-longitudinal-study
#16
Jingshan Gong, Valentina Pedoia, Luca Facchetti, Thomas M Link, C Benjamin Ma, Xiaojuan Li
BACKGROUND: To evaluate the longitudinal changes of bone marrow edema-like lesions (BMELs) in patients after anterior cruciate ligament (ACL) reconstruction and to investigate the effect of BMELs on cartilage matrix composition changes measured using MR T1ρ and T2 mapping. METHODS: Patients with acute ACL tear were enrolled in a prospective study. MR imaging was performed at baseline (before surgeries) and at 6-month, 1-year and 2-year after ACL reconstruction...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28090441/principal-component-analysis-t1%C3%AF-voxel-based-relaxometry-of-the-articular-cartilage-a-comparison-of-biochemical-patterns-in-osteoarthritis-and-anterior-cruciate-ligament-subjects
#17
Valentina Pedoia, Colin Russell, Allison Randolph, Xiaojuan Li, Sharmila Majumdar
BACKGROUND: Quantitative MR, including T1ρ mapping, has been extensively used to probe early biochemical changes in knee articular cartilage of subjects with osteoarthritis (OA) and others at risk for cartilage degeneration, such as those with anterior cruciate ligament (ACL) injury and reconstruction. However, limited studies have been performed aimed to assess the spatial location and patterns of T1ρ. In this study we used a novel voxel-based relaxometry (VBR) technique coupled with principal component analysis (PCA) to extract relevant features so as to describe regional patterns and to investigate their similarities and differences in T1ρ maps in subjects with OA and subjects six months after ACL reconstruction (ACLR)...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28089224/loading-of-the-medial-meniscus-in-the-acl-deficient-knee-a-multibody-computational-study
#18
Trent M Guess, Swithin Razu
The menisci of the knee reduce tibiofemoral contact pressures and aid in knee lubrication and nourishment. Meniscal injury occurs in half of knees sustaining anterior cruciate ligament injury and the vast majority of tears in the medial meniscus transpire in the posterior horn region. In this study, computational multibody models of the knee were derived from medical images and passive leg motion for two female subjects. The models were validated against experimental measures available in the literature and then used to evaluate medial meniscus contact force and internal hoop tension...
January 11, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28062466/knee-injury-and-acl-tear-prevention-programmes-pedro-synthesis
#19
S Eileen Meyer, Tiê P Yamato, Bruno T Saragiotto
No abstract text is available yet for this article.
January 6, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28060536/proprioception-in-patients-with-anterior-cruciate-ligament-tears
#20
Hyun-Jung Kim, Jin-Hyuck Lee, Dae-Hee Lee
BACKGROUND: Because of a reduction in the number of mechanoreceptors or alterations of their characteristics, anterior cruciate ligament (ACL) tears lead not only to mechanical instability but also to impaired proprioception. Purpose/Hypothesis: This study analyzed whether ACL tears cause a greater decrease in proprioception in injured than in uninjured knees. The hypothesis was that knee proprioception after ACL tears would decrease more in injured than in contralateral uninjured knees, regardless of the method used to measure knee proprioception...
December 1, 2016: American Journal of Sports Medicine
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