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MedPulse - International Medical Journal, ISSN 2348-2516 E-ISSN: 2348-1897
Volume 1, Issue 9, Sept 2014 pp 476-484
Research Article
Comparison of sensitivity and specificity of ultrasound scan and magnetic resonance imaging in diagnosing full thickness and partial thickness rotator cuff tear diagnosed by clinical examination in patients with shoulder trauma
Suresh Kumar H M1, Jacob Chacko2
1PG Student, 2Professor and HOD, Department of Orthopaedics, Father Muller Medical College, Kankanady Mangalore-575002, Karnataka, INDIA.
Abstract
Introduction: The shoulder joint stability is given predominantly by soft tissue structures. Correspondingly, correct diagnosis and treatment of diseases of the soft tissue structures around the glenohumeral joint are of major importance. The rotator cuff is composed of the musculo-tendinous parts of the subscapularis, supraspinatus, infraspinatus and teres minor muscles, which are affected with different frequencies by degeneration and trauma. Aim and Objectives: Find sensitivity and specificity of ultrasound scan and MRI in complete and partial thickness rotator cuff tears diagnosed clinically in patients with history of trauma. Materials and Methods: 41 Shoulder injury patients were analysed from September-2012 TO July 2014 in OPD and in patient of Father Muller Medical College with history of trauma examined clinically with various tests mentioned above to arrive at a clinical diagnosis and subjected to ultrasound and MRI examination to confirm diagnosis. Results: Complete tears were noted in 6 patients out of 6 patients in both ultrasound and MRI scanning. Incomplete or partial tears were picked up in 26 out of 35 patients by ultrasound scanning. MRI scan picked up partial or incomplete tear in 32 out of 35 patients. Conclusion: BEST non invasive investigation of choice to confirm the diagnosis is MRI in full thickness and especially in partial thickness rotator cuff tear with sensitivity of 100% and specificity of 96.3%, KAPPA statistics value of 0.936. Where ultrasound scan lacks in sensitivity. Next best alternative non invasive investigation is ultrasound scanning which is usually widely available, less cost, non invasive it has become one of the better methods of diagnosing rotator cuff injuries.
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