Relationship between Semmes-Weinstein Monofilaments perception Test and sensory nerve conduction studies in Carpal Tunnel Syndrome

Parvin Raji, Noureddin Nakhostin Ansari, Soofia Naghdi, Bijan Forogh, Scott Hasson

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

CONCLUSIONS: Although only approximately 50% of the CTS diagnosed through NCS are corroborated through SWMT; the significant associations between SWMT and NCS measures suggest that SWMT is a valid test for assessing sensations in patients with CTS.

BACKGROUND: The Semmes-Weinstein Monofilament Test (SWMT) is a clinical widely used test to quantify the sensibility in patients with Carpal Tunnel Syndrome (CTS). No study has investigated the relationship between the SWMT and sensory nerve conduction studies (SNCS) in patients with CTS.

OBJECTIVE: To assess the relationship between the SWMT and SNCS findings in patients with CTS.

METHODS: This cross-sectional clinical measurement study included 35 patients with CTS (55 hands) with a mean age of 45 ± 12 years. The outcome measures were the SWMT and SNCS measures of distal latency (DLs), amplitude (AMPs), and nerve conduction velocity (NCV). The median innervated fingers were tested using SWMT and electrodiagnostic tests. The primary outcome was the correlations between the SWMTs and NCS measures. RESULTS: All of the patients/hands had abnormal NCS findings. When looking at the three digits of interest (thumb, index and middle), the thumb SWMTs had the highest number of abnormal findings (58.2%), with the middle digit having the lowest (45.5%). All NCS findings were statistically different between abnormal and normal thumb SWMTs and abnormal and normal total summed SWMTs. There were significant moderate correlations between thumb SWMT scores and all NCS outcomes.

Original languageEnglish (US)
Pages (from-to)543-552
Number of pages10
JournalNeuroRehabilitation
Volume35
Issue number3
DOIs
StatePublished - 2014

Keywords

  • Carpal Tunnel Syndrome
  • Semmes-Weinstein Monofilament Test
  • nerve conduction study

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation
  • Clinical Neurology

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