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(Anterior cruciate ligament) AND Mri

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
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
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
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
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
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
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
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...
September 14, 2016: Musculoskeletal Surgery
Ali Babaei Jandaghi, Mohsen Mardani-Kivi, Ahmadreza Mirbolook, Mohammad Kazem Emami-Meybodi, Solmaz Mohammadzadeh, Maral Farahmand
BACKGROUND: Knee pain is a common problem in the general population. In order to determine the extent of the injury and the appropriate treatment, MRI provides the most accurate imaging method. This may be done through conventional MRI techniques or by injecting a contrast material (MR arthrography). OBJECTIVES: The purpose of this study was to compare the diagnostic value of these two methods. PATIENTS AND METHODS: The study involved the diagnostic evaluation on 60 patients with knee pain who received treatment over the course of a one-year period...
May 2016: Trauma Monthly
M A Shahin, M I Sultan, M J Alam, A Saeed, A K Azad, M R Choudhury
Cystic tuberculosis of the bone is a rare form of tuberculosis (TB). The condition presents like Juvenile idiopathic arthritis (JIA) of children. In children, the lesions symmetrically involve the peripheral skeleton, which are less sclerotic than adults. A case report is presented here where the patient presented with i) the extensive involvement of bones with cystic lesion, ii) Hand & feet involvement with multiple bony exostosis iii) Synovial swelling of multiple joints and 4) fever for 6 months. Swelling of the joints was disproportionately greater than pain...
July 2016: Mymensingh Medical Journal: MMJ
Yuanjun Teng, Laiwei Guo, Meng Wu, Tianen Xu, Lianggong Zhao, Jin Jiang, Xiaoyun Sheng, Lihu Xu, Bo Zhang, Ning Ding, Yayi Xia
BACKGROUND: Consistent reference data used for anatomic posterior cruciate ligament (PCL) reconstruction is not well defined. Quantitative guidelines defining the location of PCL attachment would aid in performing anatomic PCL reconstruction. The purpose was to characterize anatomic parameters of the PCL tibial attachment based on magnetic resonance imaging (MRI) in a large population of adult knees. METHODS: The PCL tibial attachment site was examined in 736 adult knees with an intact PCL using 3...
2016: BMC Musculoskeletal Disorders
Amanda Hickey, Peter Hardy, Anders Andersen, Bruce Damon, Darren Johnson, Mary Lloyd Ireland, Brian Noehren
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
S S Sathappan, M Wp Tan, D Ginat, M G Walsh, M E Schweitzer, P E Di Cesare
PURPOSE: To determine the correlation between the distal anterior femoral cortical axis (DAFCA) and the femoral rotational alignment/axis. METHODS: Magnetic resonance images (MRI) of 82 knees in 34 men and 23 women aged 16 to 47 (mean, 33.4) years were reviewed by a musculoskeletal radiologist. Their diagnoses included meniscal tear (n=4), chondromalacia (n=25), anterior cruciate ligament tears (n=11), and normal (n=42). In all patients the collateral ligaments were intact...
August 2016: Journal of Orthopaedic Surgery
R Homsi, J Gieseke, J A Luetkens, P Kupczyk, B Maedler, G M Kukuk, F Träber, B Agha, M Rauch, N Rajakaruna, W Willinek, H H Schild, D R Hadizadeh
PURPOSE: To evaluate whether a 3 D proton density-weighted fat-suppressed sequence (PDwFS) of the knee is able to replace multiplanar 2D-PDwFS. MATERIALS AND METHODS: 52 patients (26 men, mean age: 41.9 ± 14.5years) underwent magnetic resonance imaging (MRI) of the knee at 3.0 Tesla using a T/R-coil. The imaging protocol included 3 planes of 2D-PDwFS (acquisition time (AT): 6:40 min; voxel sizes: 0.40 - 0.63 × 0.44 - 0.89 × 3mm³) and a 3D-PDwFS (AT: 6:31 min; voxel size: 0...
October 2016: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
Daniel Guenther, Sebastian Irarrázaval, Marcio Albers, Cara Vernacchia, James J Irrgang, Volker Musahl, Freddie H Fu
PURPOSE: To determine the distribution of different sizes of the area of the tibial insertion site among the population and to evaluate whether preoperative MRI measurements correlate with intraoperative findings to enable preoperative planning of the required graft size to cover the tibial insertion site sufficiently. The hypothesis was that the area of the tibial insertion site varies among individuals and that there is good agreement between MRI and intraoperative measurements. METHODS: Intraoperative measurements of the tibial insertion site were taken on 117 patients...
August 19, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
João Espregueira-Mendes, Renato Andrade, Ana Leal, Hélder Pereira, Abdala Skaf, Sérgio Rodrigues-Gomes, J Miguel Oliveira, Rui L Reis, Rogério Pereira
PURPOSE: This study aims to objectively compare side-to-side differences of P-A laxity alone and coupled with rotatory laxity within magnetic resonance imaging, in patients with total anterior cruciate ligament (ACL) rupture. METHODS: This prospective study enrolled sixty-one patients with signs and symptoms of unilateral total anterior cruciate ligament rupture, which were referred to magnetic resonance evaluation with simultaneous instrumented laxity measurements...
August 16, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Fabiano Kupczik, Luiz Otávio Bombonatto Tauscheck, Marlus Eduardo Gunia Schiavon, Bruno Sbrissia, Lucio Sergio Rocha Ernlund, Ricardo Augusto Lass Alves
OBJECTIVE: To evaluate the diameter of the flexor tendons in preoperative magnetic resonance imaging (MRI) examinations and compare this with the diameter of the graft obtained intraoperatively. METHODS: This was a retrospective longitudinal epidemiological study. Forty-four patients were eligible for the study and their MRI examinations and surgical data were evaluated. The tendons were measured on MRI across their largest diameter in the axial plane, using the medial epicondyle of the femur as the slice level...
July 2016: Revista Brasileira de Ortopedia
Daphne Guenoun, Julien Vaccaro, Thomas Le Corroller, Pierre-Antoine Barral, Aude Lagier, Vanessa Pauly, Benjamin Coquart, Joel Coste, Pierre Champsaur
Recent anatomical and radiological studies of the anterior cruciate ligament (ACL) suggest the ACL length and orientation change during knee flexion, and an open MRI sequencing during knee flexion enables a dynamic ACL analysis. This study's goal is to describe a normal ACL using a 1T open MRI and, in particular, variations in length and insertion angles at different degrees of flexion. Twenty-one volunteers with clinically healthy knees received a dynamic MRI with their knees in hyperextension, neutral position, and flexed at 45° and 90° angles...
August 11, 2016: Surgical and Radiologic Anatomy: SRA
Simeon J S Ruiter, Reinoud W Brouwer, Tim W G M Meys, Cornelis H Slump, Jos J A M van Raay
BACKGROUND: There are two primary surgical techniques to reconstruct the anterior cruciate ligament (ACL), transtibial (TT) technique and anteromedial portal (AMP) technique. Currently, there is no consensus which surgical technique elicits the best clinical and functional outcomes. MRI-derived measures of the signal intensity (SI) of the ACL graft have been described as an independent predictor of graft properties. The purpose of this study is to compare the MRI derived SI measurements of the ACL graft one year after ACL reconstruction, in order to compare the outcomes of both the AMP and TT ACL reconstruction technique...
2016: BMC Musculoskeletal Disorders
Volker Musahl, Ata A Rahnemai-Azar, Joanna Costello, Justin W Arner, Freddie H Fu, Yuichi Hoshino, Nicola Lopomo, Kristian Samuelsson, James J Irrgang
BACKGROUND: The role of the anterolateral capsule (ALC) as a secondary restraint to quantitative rotatory laxity of patients with an anterior cruciate ligament (ACL) injury is currently debated. PURPOSE/HYPOTHESIS: The purpose was to determine the influence of concomitant ALC injuries as well as injuries to other soft tissue structures on rotatory knee laxity in patients with an ACL injury. It was hypothesized that a concomitant ALC injury would be associated with increased rotatory knee laxity as measured during a quantitative pivot-shift test...
August 9, 2016: American Journal of Sports Medicine
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