Shape-texture-identification—STI—A test for tactile gnosis: Concurrent validity of STI2

Research output: Contribution to journalArticle

Abstract

Study Design: Cross-sectional study. Introduction: The shape-texture-identification (STI) test (Össur Nordic AB, Sweden) is used to evaluate one aspect of tactile gnosis in nerve disorders, and it has proven good methodological properties. Purpose of the Study: A new version of the STI test was recently introduced—STI2 (www.sensory-test.com). The purpose of this study was to test the concurrent validity in STI2. Methods: Using a cross-sectional design, this methodological study compared STI2 to the original version based on 2 cohorts; 1 including 20 persons (1 affected finger and corresponding finger on in opposite hand) with affected sensibility after hand injuries and 1 healthy group including 20 persons (digits II and V in both hands). The agreement between the 2 versions of the instrument was calculated statistically by a percentage comparison of the test results and weighted kappa. Results: The 112 tested fingers showed a complete agreement, or 1-point accepted deviation, between the 2 tests in 92% with weighted kappa of 0.74 and 95% confidence interval of 0.63-0.89. The result showed that there is no significant deviation between the 2 versions of the test. Discussion: The use of standardizes and evidence based assessment tools in clinical practice is paramount for a patient centered healthcare. Previous research has shown good psychometric proprties in the STI-test. This study contributes to the scientific evidence of the instrument. Conclusion: As the new STI2 proved good agreement within the accepted deviation, we conclude that there is evidence to use the new STI2 test in assessment of tactile gnosis.

Details

Authors
Organisations
External organisations
  • Skåne University Hospital
  • Lund University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Other Medical Sciences not elsewhere specified

Keywords

  • Hand rehabilitation, Nerve disorder, Nerve injury, Sensory function, Tactile gnosis
Original languageEnglish
JournalJournal of Hand Therapy
Publication statusE-pub ahead of print - 2018 Jul 17
Publication categoryResearch
Peer-reviewedYes