Important details in performing and interpreting the scratch collapse test

Lorna C. Kahn, Andrew Yee, Susan E. Mackinnon

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

The utility of the scratch collapse test has been demonstrated in examination of patients with carpal and cubital tunnel syndromes and long thoracic and peroneal nerve compressions. In the authors’ clinic, this lesser known test plays a key role in peripheral nerve examination where localization of the nerve irritation or injury is not fully understood. Test utility and accuracy in patients with more challenging presentations likely correlate with tester understanding and experience. This article offers a clear outline of all stages of the test to improve interrater reliability. The nuances of test performance are described, including a description of situations where the scratch collapse test is deemed inappropriate. Four clinical scenarios where the scratch collapse test may be useful are included. Corresponding video content is provided to improve performance and interpretation of the scratch collapse test.

Original languageEnglish
Pages (from-to)399-407
Number of pages9
JournalPlastic and reconstructive surgery
Volume141
Issue number2
DOIs
StatePublished - Feb 2018

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