knock knee, bow legs, flat foot and pes cavus among children: A prevalence study

Q angle will be measured by keeping a thread over the ASIS and midpoint of patella and another line will be drawn from tibial tuberosity and midpoint of patella and angle between them will be measured. And longitudinal arch angle will be measured by marking points over the centre of medial malleolus, navicular tuberosity and first metatarsal head.

Then line will be drawn between these points and angle will be measured of each child.