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Related Experiment Videos

Identification of the correct lumbar level using passive intersegmental motion testing.

R C Chakraverty1, P B Pynsent, A Westwood

  • 1Spinal Unit, Royal Orthopaedic Hospital, Birmingham B31 2AP, UK. rob.chakraverty@virgin.net

Anaesthesia
|October 11, 2007
PubMed
Summary
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Passive intersegmental motion testing, a common physical therapy technique, showed poor accuracy in identifying lumbar spinal levels. Accuracy was only 54-57%, highlighting its unreliability for precise anatomical localization.

Area of Science:

  • Orthopedics
  • Physical Therapy
  • Spinal Anatomy

Background:

  • Passive intersegmental motion testing is frequently utilized by physical therapists for lumbar spine assessment.
  • Accurate identification of specific lumbar spinal levels is crucial for effective diagnosis and treatment.

Purpose of the Study:

  • To evaluate the accuracy and inter-examiner agreement in identifying a single lumbar spinal level using passive intersegmental motion testing.
  • To compare the performance of an experienced clinician versus a novice clinician.

Main Methods:

  • Thirty-five adult participants underwent independent examination by an experienced and a novice clinician.
  • Examiners marked the perceived lumbar interspace, with marks concealed from the subsequent examiner.
  • Fluoroscopic imaging was used to determine the true spinal level for accuracy verification.

Related Experiment Videos

Main Results:

  • The accuracy of identifying the correct lumbar spinal level ranged from 54% to 57%.
  • Interobserver agreement between the two clinicians was found to be poor.
  • A significant learning effect was observed in the experienced examiner, with accuracy improving from 31% to 79% across the study phases.

Conclusions:

  • Passive intersegmental motion testing demonstrates limited reliability for accurately identifying specific lumbar spinal levels.
  • The findings suggest that this technique may not be a dependable method for precise anatomical localization in the lumbar spine.