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(Anterior cruciate ligament) AND Mri

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https://www.readbyqxmd.com/read/27900295/diagnostic-performance-of-volume-and-limited-oblique-mri-of-the-anterior-cruciate-ligament-compared-to-knee-arthroscopy
#1
Paula J Richards, Iain McCall, Alexandra Kraus, Mary Jones, Gayle Maffulli, Stephen Bridgman, Nicola Maffulli
BACKGROUND: Many strategies have been used to improve the visualisation of the ACL including sagittal, coronal oblique sequences, and 3D volume imaging. Nevertheless, the ACL may not always be visualised. METHODS: Two hundred and thirty-one consecutive patients (77 females; 154 males; average age 43.5, range 18 to 82 years; 205 with chronic, 20 acute, and 6 acute on chronic symptoms) underwent knee arthroscopy for mechanical symptoms within a week of MRI. After routine orthogonal sequences, if general MRI radiographers, with over four years experience, were not able to identify the presence of the ACL, then two 3D volume sequences and 2D limited sagittal oblique T1 sequences were performed...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27888604/mri-depiction-and-3d-visualization-of-three-anterior-cruciate-ligament-bundles
#2
H Otsubo, Y Akatsuka, H Takashima, T Suzuki, D Suzuki, T Kamiya, Y Ikeda, T Matsumura, T Yamashita, K Shino
The anterior cruciate ligament (ACL) is divided into three fiber bundles (AM-M: anteromedial-medial, AM-L: anteromedial-lateral, PL: posterolateral). We attempted to depict the three bundles of the human ACL on MRI images and to obtain 3-dimensional visualization of them. Twenty-four knees of healthy volunteers (14 males, 10 females) were scanned by 3T-MRI using the fat suppression 3D coherent oscillatory state acquisition for the manipulation of imaging contrast (FS 3D-COSMIC). The scanned images were reconstructed after the isotropic voxel data, which allows the images to be reconstructed in any plane, was acquired...
November 26, 2016: Clinical Anatomy
https://www.readbyqxmd.com/read/27885289/assessment-of-knee-joint-injuries-with-low-field-strength-magnetic-resonance-imaging
#3
O B Panta, N P Neupane, S Songmen, G Gurung
BACKGROUND: Magnetic Resonance Imaging is an appropriate screening tool before therapeutic arthroscopy, making diagnostic arthroscopy unnecessary in most patients. This study aims to evaluate the MRI findings in knee injuries and diagnostic value of low Strength MRI for assessing Meniscal and cruciate ligament tear. METHODS: A cross sectional study was conducted on patients undergoing "Magnetic Resonance Imaging of the Knee" for injuries of the knee and excluded patients undergoing MRI for other causes, poor diagnostic quality MRI and post operative MRI...
May 2016: Journal of Nepal Health Research Council
https://www.readbyqxmd.com/read/27882612/the-relationship-between-geometry-of-the-extensor-mechanism-of-the-knee-and-risk-of-anterior-cruciate-ligament-injury
#4
Josh C Carter, Daniel R Sturnick, Pamela M Vacek, Michael J DeSarno, Erin C Argentieri, James R Slauterbeck, Robert J Johnson, Bruce D Beynnon
The complex inter-segmental forces that are developed across an extended knee by body weight and contraction of the quadriceps muscle group transmits an anteriorly-directed force on the tibia that strain the anterior cruciate ligament (ACL). We hypothesized that a relationship exists between geometry of the knees extensor mechanism and the risk of sustaining a non-contact ACL injury. Geometry of the extensor mechanism was characterized using MRI scans of the knees of 88 subjects that suffered their first non-contact ACL injury and 88 matched control subjects with normal knees that were on the same team...
November 24, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27876498/associated-lateral-medial-knee-instability-and-its-relevant-factors-in-anterior-cruciate-ligament-injured-knees
#5
Arata Yuuki, Takeshi Muneta, Toshiyuki Ohara, Ichiro Sekiya, Hideyuki Koga
BACKGROUND: Associations of lateral/medial knee instability with anterior cruciate ligament (ACL) injury have not been thoroughly investigated. The purposes of this study were to investigate whether lateral/medial knee instability is associated with ACL injury, and to clarify relevant factors for lateral/medial knee instability in ACL-injured knees. METHODS: One hundred and nineteen patients with unilateral ACL-injured knees were included. Lateral/medial knee instability was assessed with varus/valgus stress X-ray examination for both injured and uninjured knees by measuring varus/valgus angle, lateral/medial joint opening, and lateral/medial joint opening index...
November 19, 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/27871663/surgical-management-and-treatment-of-the-anterior-cruciate-ligament-medial-collateral-ligament-injured-knee
#6
REVIEW
Kevin M Dale, James R Bailey, Claude T Moorman
The medial collateral ligament (MCL) is the most commonly injured ligament of the knee. The anterior cruciate ligament (ACL) is the most commonly injured ligament in conjunction with the MCL. Most MCL injuries can be treated nonoperatively, whereas the ACL often requires reconstruction. A good physical examination is essential for diagnosis, whereas radiographs and MRI of the knee confirm diagnosis and help guide treatment planning. Preoperative physical therapy should be completed before surgical management to allow for return of knee range of motion and an attempt at MCL healing...
January 2017: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/27871652/epidemiology-and-diagnosis-of-anterior-cruciate-ligament-injuries
#7
REVIEW
Christopher C Kaeding, Benjamin Léger-St-Jean, Robert A Magnussen
Anterior cruciate ligament (ACL) injuries are increasingly common in the United States. This may be related to the increase in high school sports participation, particularly in female athletes. A significant proportion of these injuries are caused by noncontact mechanisms. The incidence of these noncontact injuries may be significantly reduced by enrolling young athletes in jump-training programs. The diagnosis of ACL injuries involves a focused history and physical examination, which can provide a high index of suspicion...
January 2017: Clinics in Sports Medicine
https://www.readbyqxmd.com/read/27824492/evolution-of-intrameniscal-signal-intensity-alterations-detected-on-mri-over-24-months-in-patients-with-traumatic-anterior-cruciate-ligament-tear
#8
Julio Brandao Guimaraes, Luca Facchetti, Benedikt J Schwaiger, Alexandra S Gersing, Sharmila Majumdar, Benjamin C Ma, Xiaojuan Li, Thomas M Link
OBJECTIVE: The objective of our study was to assess the prevalence and evolution of intrameniscal signal-intensity alteration in subjects with an anterior cruciate ligament (ACL) tear over 24 months and compare clinical outcome and changes of cartilage between subjects with and those without this meniscal abnormality. MATERIALS AND METHODS: Fifty-seven subjects with an ACL tear were screened for intrameniscal signal-intensity alteration. Morphologic and compositional MRI was performed before ACL reconstruction and 12 and 24 months after ACL reconstruction...
November 8, 2016: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/27820852/osteoarthritis-in-the-knee-joints-of-g%C3%A3-ttingen-minipigs-after-resection-of-the-anterior-cruciate-ligament-missing-correlation-of-mri-gene-and-protein-expression-with-histological-scoring
#9
Gregor Reisig, Michael Kreinest, Wiltrud Richter, Mechthild Wagner-Ecker, Dietmar Dinter, Ulrike Attenberger, Barbara Schneider-Wald, Stefan Fickert, Markus L Schwarz
INTRODUCTION: The Göttingen Minipig (GM) is used as large animal model in articular cartilage research. The aim of the study was to introduce osteoarthritis (OA) in the GM by resecting the anterior cruciate ligament (ACLR) according to Pond and Nuki, verified by histological and magnetic resonance imaging (MRI) scoring as well as analysis of gene and protein expression. MATERIALS AND METHODS: The eight included skeletally mature female GM were assessed after ACLR in the left and a sham operation in the right knee, which served as control...
2016: PloS One
https://www.readbyqxmd.com/read/27815015/arthroscopic-anterior-cruciate-ligament-repair-for-proximal-anterior-cruciate-ligament-tears-in-skeletally-immature-patients-surgical-technique-and-preliminary-results
#10
Marco Bigoni, Diego Gaddi, Massimo Gorla, Daniele Munegato, Marco Pungitore, Massimiliano Piatti, Marco Turati
BACKGROUND: Anterior cruciate ligament (ACL) tears in children are increasingly common and present difficult treatment decisions due to the risk of growth disturbance. Although open primary ACL repair was abandoned in the historical literature, recent studies have suggested that there is a role for arthroscopic primary repair in patients with proximal tears. METHODS: This is a retrospective review of five consecutive patients aged 9.2years (range 8 to 10) who underwent suture anchor ACL reinsertion...
November 2, 2016: Knee
https://www.readbyqxmd.com/read/27806877/does-the-tibial-remnant-of-the-anterior-cruciate-ligament-promote-ligamentization
#11
Byung Ill Lee, Byoung Min Kim, Duk Hwan Kho, Sai Won Kwon, Hyeung June Kim, Hyun Ryong Hwang
BACKGROUND: The purpose of this study was to clarify the difference in ligamentization between the remnant-preserving (RP) and remnant-sacrificing (RS) techniques in anterior cruciate ligament (ACL) reconstruction using magnetic resonance imaging (MRI). METHODS: A retrospective comparative study was carried out on 98 patients undergoing ACL reconstruction using either an RP (n=56) or RS (n=42) technique. MRI was performed at one of four time points postoperatively, and the signal intensity of the ACL graft was analyzed using the signal to noise quotient (SNQ) ratio and inter-bundle high signal intensity, along with an analysis of the survival rate of remnant tissue...
October 30, 2016: Knee
https://www.readbyqxmd.com/read/27795945/magnetic-resonance-imaging-after-anterior-cruciate-ligament-reconstruction-a-practical-guide
#12
REVIEW
Alberto Grassi, James R Bailey, Cecilia Signorelli, Giuseppe Carbone, Andy Tchonang Wakam, Gian Andrea Lucidi, Stefano Zaffagnini
Anterior cruciate ligament (ACL) reconstruction is one of the most common orthopedic procedures performed worldwide. In this regard, magnetic resonance imaging (MRI) represents a useful pre-operative tool to confirm a disruption of the ACL and to assess for potential associated injuries. However, MRI is also valuable post-operatively, as it is able to identify, in a non-invasive way, a number of aspects and situations that could suggest potential problems to clinicians. Graft signal and integrity, correct tunnel placement, tunnel widening, and problems with fixation devices or the donor site could all compromise the surgical outcomes and potentially predict the failure of the ACL reconstruction...
October 18, 2016: World Journal of Orthopedics
https://www.readbyqxmd.com/read/27746492/preoperative-magnetic-resonance-imaging-evaluation-of-semitendinosus-tendon-in-anterior-cruciate-ligament-reconstruction-does-this-have-an-effect-on-graft-choice
#13
Mutlu Cobanoglu, Ferit Tufan Ozgezmez, Imran Kurt Omurlu, Ilhan Ozkan, Sevki Oner Savk, Emre Cullu
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction with ST autograft is sometimes unsuccessful because of harvested thin graft. Magnetic resonance imaging (MRI) can be a useful tool to evaluate the thickness of the graft. This study is performed to evaluate whether there is any correlation between diameters and cross-sectional area (CSA) of the semitendinosus tendon (ST) on the preoperative magnetic MRI and the diameter of the 4-stranded ST autograft in ACL reconstruction. MATERIALS AND METHODS: Seventy patients who underwent single-bundle ACL reconstruction with 4-stranded ST for full-thickness ACL ruptures were included in this study...
September 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27699479/intra-articular-pathology-associated-with-isolated-posterior-cruciate-ligament-injury-on-mri
#14
Michael D Ringler, Ezekiel E Shotts, Mark S Collins, B Matthew Howe
OBJECTIVE: Unlike with anterior cruciate ligament injury, little is known about the prevalence of intra-articular pathology associated with isolated posterior cruciate ligament (PCL) injury in the knee. The objectives of this study were to characterize and identify the frequency of meniscal tears and osteochondral injuries in these patients, and to see if management might be affected. MATERIALS AND METHODS: Altogether, 48 knee MRI exams with isolated PCL tears were evaluated for the presence of: grade and location of PCL tear, meniscal tear, articular chondral lesion, bone bruise, and fracture...
October 4, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27692105/large-fracture-of-the-anteromedial-tibial-plateau-with-isolated-posterolateral-knee-corner-injury-case-series-of-an-often-missed-unusual-injury-pattern
#15
Jordi Tomás-Hernández, Joan Minguell Monyart, Jordi Teixidor Serra, Merce Reverté Vinaixa, Ernesto Guerra Farfan, Vicente Molero García, Enric Castellet Feliu
Tibial plateau fractures are a heterogeneous group of lesions with multiple fracture patterns. They are often associated with soft tissue injuries, the lateral meniscus and the anterior cruciate ligament (ACL) being the most common structures affected. The purpose of this article is to present a case series of an often missed unusual injury pattern that consists on the association of a large anteromedial tibial plateau fracture with a posterolateral (PL) knee corner injury without involvement of the cruciate ligaments...
September 2016: Injury
https://www.readbyqxmd.com/read/27686315/management-of-cyclops-syndrome-a-case-report
#16
Lorenzo Maria Di Giacomo, Muhammad Shahid Khan, Luigi Piscitelli, Michele Bisaccia, Auro Caraffa
Anterior Cruciate ligament (ACL) is a typical athletic injury. One of the most frequent complication after ACL reconstruction is reduced range of motion (ROM) due to the impingement on the inter-condylar notch of a fibrous tissue mass, defined as Cyclops Syndrome. We report the case of a 25 years old male, who underwent reconstruction of ACL with Gracilis-semitendinosus (GR-ST) tendons with delayed onset of loss of knee extension seven years after ACL reconstruction. Clinical and magnetic resonance image (MRI) findings were consistent with Cyclops syndrome...
October 2016: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/27680889/efficacy-of-%C3%AE-tricalcium-phosphate-graft-into-the-bone-defects-after-bone-patellar-tendon-bone-anterior-cruciate-ligament-reconstruction
#17
Hiroshi Higuchi, Atsushi Kobayashi, Keiko Ikeda, Kazuhisa Hatayama, Sinya Yanagisawa, Kazuo Kato
This prospective pilot study investigated whether grafting β-tricalcium phosphate (B-TCP) into the bone-patellar tendon-bone (BPTB)-harvesting site after anterior cruciate ligament reconstruction would accelerate bone and tendon regeneration in the grafted site. Overall, 19 patients agreed prospectively to undergo regular morphological and histological examinations of the B-TCP-grafted site. Postoperative radiographic, ultrasonographic, and magnetic resonance imaging (MRI) examinations were performed to evaluate the grafted site at 1, 3, 6, and 12 months...
September 28, 2016: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27660599/sonographic-and-magnetic-resonance-imaging-examination-of-a-cyclops-lesion-after-anterior-cruciate-ligament-reconstruction-a-case-report
#18
Stacey M Cornelson, Alicia M Yochum, Norman W Kettner
OBJECTIVE: This case report describes magnetic resonance imaging (MRI) and diagnostic ultrasound (US) findings for a patient with arthrofibrosis related to a complication of anterior cruciate ligament (ACL) reconstruction. CLINICAL FEATURES: A 25-year old man presented with right knee pain and loss of extension 5 years after ACL reconstruction. MRI and sonographic examination revealed a soft tissue mass anterolateral to the ACL graft consistent with a cyclops lesion...
September 2016: Journal of Chiropractic Medicine
https://www.readbyqxmd.com/read/27648453/the-risk-of-transphyseal-drilling-in-skeletally-immature-patients-with-anterior-cruciate-ligament-injury
#19
Peter Faunø, Lone Rømer, Torsten Nielsen, Martin Lind
BACKGROUND: Anterior cruciate ligament reconstruction (ACLR) in skeletally immature patients can result in growth plate injury, which can cause growth disturbances. PURPOSE: To evaluate radiological tibial and femoral length and axis growth disturbances as well as clinical outcomes in skeletally immature ACLR patients treated with a transphyseal drilling technique. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: A total of 39 pediatric patients with ACL injury and open physes at time of surgery, as diagnosed clinically and with magnetic resonance imaging (MRI), were treated using transphyseal ACLR using hamstring graft...
September 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27628912/comparison-of-clinical-mri-and-arthroscopic-assessments-of-chronic-acl-injuries-meniscal-tears-and-cartilage-defects
#20
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
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