How do I check knock knees? How do they check it in the armed forces?
Knock Knee is a term used to describe the condition of knees when the both the knees touch each other when legs are straightened it also includes a large gap between the knees.Genu valgum is the scientific name given to knock knee, in Medical Exams of Service Selection Boards candidates are examined for knock knees and those candidates who are found with knock knee are not eligible to join the Indian Defence Forces.Knock Knee TestTo test whether you have knock knee or not you have to just stand on floor forming a "V" shape and if there is Small Gap between your knees then it's fine but if the gap is too much or your knees are touching each other then you must consult a doctor.As shown in the picture the person P1 has knock knee as his both the knees are touching each other while the person P3 also have a deformities in his knees as the gap between his knees is quite large when they are standing making a shape of V and the person P2 have a normal Knees as his both Knees are having a small gap.The degree of knock knee is determined by an angle called Qangle. It is angle formed by a line drawn from the anterior superior iliac spine through the center of the patella and a line drawn from the center of the patella to the center of the tibial tubercle. The Q angle for men should be less than 18 degrees with the knee in extension and less than 8 degrees with the knee in 90 degrees of flexion and for Women it should be less than 22 degrees with the knee in extension and less than 9 degrees with the knee in 90 degrees of flexion.