MR Imaging Based Diagnosis of Anterior Cruciate Ligament Tears in Patients with Internal Derangement of Knee

Introduction: Internal derangement of knee joint constitutes a major source of morbidity. It includes a group of disorders due to disruption of normal functioning of ligaments and menisci of knee joint leading to persistent or intermittent signs and symptoms such as pain, instability, or abnorm...

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Bibliographic Details
Main Authors: Hemanth Purigali Naganna, Nanjaraj Chakenahalli Puttraj, Sangeetha, Vijay Prakash Kannan, Shashikumar Mysore Rangaswamy, Rajendrakumar Narasipur Lingaiah
Format: Article
Language:English
Published: JCDR Research and Publications Pvt. Ltd. 2017-04-01
Series:International Journal of Anatomy Radiology and Surgery
Subjects:
Online Access:http://www.ijars.net/articles/PDF/2263/26026_CE[VSU]_F(GH)_PF1(VsuGH)_PFA_NC(GH)_PF2(VsuGH).pdf
Description
Summary:Introduction: Internal derangement of knee joint constitutes a major source of morbidity. It includes a group of disorders due to disruption of normal functioning of ligaments and menisci of knee joint leading to persistent or intermittent signs and symptoms such as pain, instability, or abnormal mobility of the knee. Among these Anterior Cruciate Ligament (ACL) tears are the most commonly encountered injury in radiology practice. Aim: To identify the various MRI imaging findings in clinically suspected cases of ACL injury and to identify, assess indirect signs of ACL tears. Materials and Methods: This study was performed in the Department of Radiodiagnosis, Mysore Medical College and Research Institute, Mysuru, Karnataka, on patients referred from Orthopedics Department for a period of one year. Fifty patients with clinically suspected ACL tears (37 men, 13 women) were included in this prospective study. Patients were subsequently subjected to imaging of knee using 1.5 T MRI 8 channel GE Brivo MRI machine. Sequences used were axial, sagittal and coronal PD Fat Sat; sagittal, axial and coronal T2 FSE and sagittal T1 FSE. Results: Among 50 patients ACL was the commonest ligament to be injured with complete tear being more common than partial tear. Indirect signs of ACL injury were evaluated and helped to corroborate the tears. Certain patterns of associations of injuries were found such as ACL tear with posterolateral corner injury and O’Donoghue’s triad. Conclusion: MR imaging of knee complements therapeutic arthroscopies and would greatly reduce the need of diagnostic arthroscopies. As MR is a non-invasive, painless and morbidity-free modality for accurate preoperative assessment, it is well accepted by patients. Hence, MR is an excellent tool for evaluation of ACL pathologies.
ISSN:2277-8543
2455-6874