Hip Muscle Extensibility Evidence: confirmed

90-90 Straight Leg Raise Special Test

Orthopedic Physical Examination & Clinical Assessment Guide

90-90 Straight Leg Raise Orthopedic Special Test

What is it used for?

  • Assessing Hamstring Tightness.

How to Perform

  • Position: Patient lies supine with both hips and knees flexed to 90°. Patient grasps behind their own knees.
  • Action: Patient actively extends one knee as much as possible while keeping the hip at 90°.

Interpretation of Results

  • Positive Test: Inability to extend the knee to within 20° of full extension (i.e., knee angle is <160°).

References

  • Magee, D. J. (2021). Orthopedic Physical Assessment.