Test Item Cluster | Full-Thickness Rotator Cuff Tear

The video tutorial discusses a test item cluster for diagnosing full thickness rotator cuff tears, which includes the painful arc sign, drop arm sign, and resisted infraspinatus test. Each test's psychometric properties, such as sensitivity and specificity, are explored. The video explains how combining these tests can improve diagnostic accuracy through positive likelihood ratios. Detailed procedures for each test are provided, along with their clinical significance in differentiating between rotator cuff tears and subacromial impingement syndrome.

What constitutes a positive result in the drop arm sign test?

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What is the resisted infraspinatus test and how is it performed?

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Discuss the psychometric properties of the resisted infraspinatus test.

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What are the implications of a negative resisted infraspinatus test result?

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