Q angle (Quadriceps angle) Assessment

definition, assessment, procedure and factors affecting Q angle
microteaching presentation

1. ‘’Q’’- Angle Presented by – syed adil Orthopedic physiotherapy intended class – 2 nd bpt department

2. LEARNING OBJECTIVES DEFINITION ASSESSMENT NORMAL RANGE FACTORS AFFECTING Q-ANGLE

3. Q - angle is formed between - A line made by connecting a point 0ver ASIS to the mid-point of the  Patella. And Line connecting midpoint of the patella to the tibial tubercle. These lines represent the lines of action of the quadriceps musculature and patellar tendons, on the patella.

4. How to measure q- angle ? P osition : Supine with knee extended. The therapist stands next to patient. Application : Ensure that the lower extremity is at a right angle to the line joining each ASIS. The hips and foot should be placed in the neutral position. Draw a line from ASIS to the midpoint of  patella  and then from the midpoint of the patella to the tibial tubercle.

5. Normal range N ormal range of values for men is about 10° to 14 and Normal range of values for women is about 15° to 23°. Females generally have a greater Q-angle than males. Mean values of q angle are - 17 degrees for women 12 degrees for men

6. Factors which may increase q angle Muscle imbalance Iliotibial band tightness Genu Valgum Medial femoral torsion (femoral anteversion) Lateral tibial rotation

7. Summary

8. Questions ?

9. Reference Pamela k. Levangie , Cynthia C Norkin Joint Structure and Function 5 th edition A comprehensive analysis 2011 Peggy A. Houglum, Dolores B. Bertoti Brunnstrom’s Clinical Kinesiology 6 th e dition

10. Thank you