Study of Rotator Cuff Disorders by Ultrasound with Magnetic Resonance Imaging Correlation
Journal Title: International Journal of Contemporary Medicine surgery and Radiology - Year 2018, Vol 3, Issue 1
Abstract
Introduction: Shoulder pain is one of the most common complaints encountered in orthopedic department. Rotator cuff pathologies are the cause of most common problems at the shoulder joint. Accurate diagnosis of these pathologies is essential for appropriate management. In addition to history and physical examination, evaluation of a patient with shoulder pain often involves assessment of the rotator cuff with a diagnostic test such as high resolution ultrasonography or MRI. This study aimed to assess the accuracy of high resolution ultrasonography in detecting the rotator cuff disorders by correlating with Magnetic Resonance Imaging findings. Material and methods: The study included thirty patients who presented with shoulder joint pain, restriction of movements or clinically suspected rotator cuff disorders. Patients were subjected to both High resolution USG and MRI investigations. USG findings were then correlated with MRI findings. Results: USG detected 18 cases of supraspinatous pathologies out of the 24 MRI detected abnormal supraspinatous tendons, with a sensitivity of 75%. Sensitivity, specificity, PPV, NPV and accuracy for supraspinatus tendon pathologies were found to be 75%, 66.7%, 90%, 40% and 73.7% respectively and that for subscapularis tendon were 66.7%, 95.8%, 80%, 92% and 90% respectively. USG had 58.3% sensitivity in identifying partial thickness tears, 100% specificity and PPV. For full thickness tear, USG had 100% sensitivity, 96.4% specificity, 75% PPV, 100% NPV and an accuracy of 100%. Conclusion: USG is comparable to MRI in evaluation of disorders of the rotator cuff disorders, particularly more accurate in full thickness tear of rotator cuff tendons. USG can be used as the first line investigation, MRI can be used in situations where the diagnosis is equivocal on USG or in patients in whom USG examination is difficult to perform or patient is not cooperative. Ultrasonography being non-invasive, non-ionizing, combined with low cost with advantage of dynamic real time assessment, may serve as the most cost effective imaging method for screening of rotator cuff disorders.
Authors and Affiliations
Hemanth Purigali Naganna, Shashikumar Mysore Rangaswamy, Jaganathan . , Nanjaraj Chakenalli Puttaraju, Rajendra Kumar Narasipura Lingaiah, Pradeep Hagalahalli Nagarajegowda
Keywords
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