Q Angle
Original Editor - Venus Pagare
Top Contributors - Venus Pagare, Andeela Hafeez, Abdallah Ahmed Mohamed, Sehriban Ozmen, Ehtisham Panhwar, Laura Ritchie, Ben Kasehagen, WikiSysop, Nikhil Benhur Abburi, Admin, Kim Jackson, Claire Knott, Evan Thomas, George Prudden and Wanda van Niekerk
Background[edit | edit source]
Measurement[edit | edit source]
The knee is fully extended, but not hyper-extended,during measurements.
The Q angle is acute angle formed between:
- A line representing the resultant line of force of the quadriceps, made by connecting a point near the ASIS to the mid-point of the patella
- A line representing a long axis of the patellar tendon, made by connecting a point on the tibial tuberosity with the mid-point of the patella.
Normative Values[edit | edit source]
Factors affecting 'Q' Angle[edit | edit source]
Increases in q-angle are associated with [1]:
- Femoral anteversion
- External tibial torsion
- Laterally displaced tibial tubercle
- Genu valgus
Clinical Importance[edit | edit source]
References[edit | edit source]
- ↑ http://moon.ouhsc.edu/dthompso/namics/qangle.htm
- ↑ Horton MG, Hall TL. Quadriceps Femoris Muscle Angle:Normal Values and Relationships with Gender and Selected Skeletal Measures. Phy Ther 1989; 69: 17-21
- ↑ Levangie, P.K. and Norkin, C.C. (2005). Joint structure and function: A comprehensive analysis (4th ed.). Philadelphia: The F.A. Davis Company.