Knee Patellofemoral Evidence: suggestive

Q-Angle Measurement Special Test

Orthopedic Physical Examination & Clinical Assessment Guide

Q-Angle Measurement Orthopedic Special Test

What is it used for?

  • Assessing patellar tracking alignment.

How to Perform

  • Points: Draw a line from ASIS to mid-patella, and from tibial tuberosity to mid-patella.
  • Measurement: Measure the angle at the intersection.

Interpretation of Results

  • Normal: Men: 13°; Women: 18°.
  • Abnormal: >18° increases risk of subluxation and PFPS.

References

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