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Related Experiment Videos

The carpal stretch test

R A Reynolds1, G H Johnston, L Friedman

  • 1Department of Surgery, Royal University Hospital, University of Saskatchwan, Saskatoon.

Canadian Journal of Surgery. Journal Canadien De Chirurgie
|May 12, 1998
PubMed
Summary
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The carpal stretch test is a sensitive tool for detecting proximal carpal row ligament tears in patients with dynamic dissociative carpal instability. This test aids in diagnosing chronic wrist pain when other methods are inconclusive.

Area of Science:

  • Orthopedic Surgery
  • Radiology
  • Sports Medicine

Background:

  • Dynamic dissociative carpal instability presents diagnostic challenges.
  • Traditional methods like radiography, arthrography, and scintigraphy have limitations in evaluating proximal carpal row ligamentous injuries.

Observation:

  • A novel "carpal stretch test" was evaluated in six patients with chronic wrist pain and confirmed ligamentous disruption.
  • The test involved suspending the wrist under a 4.5-kg weight for 10 minutes, followed by radiography.

Findings:

  • The carpal stretch test demonstrated higher sensitivity than radiography, arthrography, and scintigraphy in identifying proximal carpal row ligament tears.
  • Its sensitivity approached that of arthroscopy, the gold standard, in detecting both the presence and location of tears.

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Implications:

  • The carpal stretch test shows promise as a valuable screening tool for dynamic dissociative carpal instability.
  • It can aid clinicians in diagnosing ligamentous tears of the proximal carpal row, particularly in cases of chronic wrist pain.