title: Evaluation of the scratch collapse test in peroneal nerve compression.
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.
  
  
  CONCLUSIONS
  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.
  
  
  METHODS
  Diagnostic, II.
authors.affiliation: 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.
authors.forename: Justin
authors.initials: J
authors.lastname: Gillenwater
authors.forename: Jonathan
authors.initials: J
authors.lastname: Cheng
authors.forename: Susan E
authors.initials: SE
authors.lastname: Mackinnon
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D016009:Chi-Square Distribution; D019299:Decompression, Surgical / Q000379:methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009408:Nerve Compression Syndromes / Q000175:diagnosis* / Q000601:surgery; D009460:Neurologic Examination / Q000379:methods*; D020427:Peroneal Neuropathies / Q000175:diagnosis* / Q000601:surgery; D011237:Predictive Value of Tests; D011446:Prospective Studies; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index