International Journal of Shoulder Surgery· 2015
The accuracy of "subacromial grind test" in diagnosis of supraspinatus rotator cuff tears
- 7citations
- 2015year
Short summary
The subacromial grind test accurately diagnoses full-thickness supraspinatus tears with 85% overall accuracy (82% sensitivity, 87% specificity).
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Key points
- The subacromial grind test involves detecting palpable crepitus during passive shoulder rotation in abduction.
- For full-thickness supraspinatus tears, the test showed 82% sensitivity and 87% specificity.
- The overall accuracy of the subacromial grind test for full-thickness tears was 85%.
- For any supraspinatus tear, the test had 63% sensitivity and 95% specificity, with 79% overall accuracy.
AI-generated from the title and abstract; the full text is not read.
Abstract
PURPOSE: The aim of this study is to assess the accuracy of a simple clinical test (subacromial grind test) in diagnosing supraspinatus tendon tears. PATIENTS AND METHODS: The test is considered positive if palpable crepitus or grinding is detected on passive internal and external rotation of the shoulder while abducted in the scapular plane. Data were collected prospectively on 47 patients undergoing shoulder arthroscopy, and the results of the test and arthroscopy compared. RESULTS: During arthroscopy, 17 patients had full thickness (FT) tears of supraspinatus tendon and 10 had partial thickness tears. For any supraspinatus tear, the sensitivity of the test was 63%, specificity 95%, positive predictive value 94%, negative predictive value 66% and overall accuracy 79%. For FT tears, the sensitivity was 82%, specificity 87%, positive predictive value 78%, negative predictive value 90% and overall accuracy 85%. CONCLUSION: We found that this is a useful single test for diagnosing FT supraspinatus tears. LEVEL OF EVIDENCE: Level IV diagnostic study.
The authors' abstract, as published at the source. International Journal of Shoulder Surgery, 2015 · DOI ↗
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Field: Surgery
SurgeryMedicine