Lunotriquetral Ballottement Test assesses instability of which joint?

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Multiple Choice

Lunotriquetral Ballottement Test assesses instability of which joint?

Explanation:
This test is used to detect instability between the lunate and triquetrum. By applying a translating force across the lunotriquetral interval, you’re looking for abnormal movement or a clunk between these two bones. A positive result points to lunotriquetral instability, typically from injury to the lunotriquetral interosseous ligament. It’s not primarily assessing the scapholunate joint or the TFCC. Other maneuvers target scapholunate instability (like piano-key or Watson’s test) or TFCC pathology with different loading or provocative maneuvers on the ulnar side.

This test is used to detect instability between the lunate and triquetrum. By applying a translating force across the lunotriquetral interval, you’re looking for abnormal movement or a clunk between these two bones. A positive result points to lunotriquetral instability, typically from injury to the lunotriquetral interosseous ligament.

It’s not primarily assessing the scapholunate joint or the TFCC. Other maneuvers target scapholunate instability (like piano-key or Watson’s test) or TFCC pathology with different loading or provocative maneuvers on the ulnar side.

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