Justin Gillenwater1, Jonathan Cheng, Susan E Mackinnon. 1. Los Angeles, Calif.; Dallas, Texas; and St. Louis, Mo. From the Division of Plastic and Reconstructive Surgery, University of Southern California; Department of Plastic Surgery, University of Texas Southwestern Medical Center; Division of Plastic and Reconstructive Surgery, Washington University in St. Louis.
Abstract
BACKGROUND: The scratch collapse test is a recently described provocative test for diagnosis of peripheral nerve compression. METHODS: The scratch collapse test was studied prospectively in 24 consecutive patients with a diagnosis of common peroneal nerve compression neuropathy. The diagnosis was confirmed by history, physical examination, and electrodiagnostic testing. Provocative testing by the scratch collapse test and Tinel's sign was performed. RESULTS: The scratch collapse test showed a sensitivity of 0.77 and a specificity of 0.99, while the Tinel's sign showed 0.65 and 0.99, respectively. CONCLUSION: The scratch collapse test is a sensitive and specific provocative test that compares favorably to existing clinical tests and aids in the diagnosis of common peroneal neuropathy. CLINICAL QUESTION/LEVEL OF EVIDENCE: Diagnostic, II.
BACKGROUND: The scratch collapse test is a recently described provocative test for diagnosis of peripheral nerve compression. METHODS: The scratch collapse test was studied prospectively in 24 consecutive patients with a diagnosis of common peroneal nerve compression neuropathy. The diagnosis was confirmed by history, physical examination, and electrodiagnostic testing. Provocative testing by the scratch collapse test and Tinel's sign was performed. RESULTS: The scratch collapse test showed a sensitivity of 0.77 and a specificity of 0.99, while the Tinel's sign showed 0.65 and 0.99, respectively. CONCLUSION: The scratch collapse test is a sensitive and specific provocative test that compares favorably to existing clinical tests and aids in the diagnosis of common peroneal neuropathy. CLINICAL QUESTION/LEVEL OF EVIDENCE: Diagnostic, II.
Authors: Louis H Poppler; Andrew P Groves; Gina Sacks; Anchal Bansal; Kristen M Davidge; Jenifer A Sledge; Heidi Tymkew; Yan Yan; Jessica M Hasak; Patricia Potter; Susan E Mackinnon Journal: Ann Fam Med Date: 2016-11 Impact factor: 5.166