Spine Lumbo-Sacral Spine Evidence: confirmed

Derbolowsky Test Special Test

Orthopedic Physical Examination & Clinical Assessment Guide

Derbolowsky Test Orthopedic Special Test

What is it used for?

  • Diagnosing Functional Leg Length Discrepancy caused by pelvic rotation.

How to Perform

  • Step 1: Patient lies supine. Check ankle levels.
  • Step 2: Patient sits up (Long Sitting). Check ankle levels again.

Interpretation of Results

  • Positive Test: One leg appears to change length (e.g., goes from Short to Long).
  • Meaning: Indicates the pelvis is rotated (Anterior or Posterior Innominate rotation) rather than a true short bone.

References

  • Clinical Tests for the Musculoskeletal 3rd Ed. Book