Joint malformation can be due to genetic predisposition and environmental factors which lead to: abnormal conformation, laxity in joint and surrounding tissues, lack of congruity between articular surfaces, femoral head subluxation, limited contact of femoral head with acetabulum, increased pressure of femoral head on the acetabulum between 10-2 o'clock, tissue fatigue and loss of elasticity, microfracture of acetabulum, pain associated with tearing of periosteum, and osteophyte formation on the acetabulum and femoral neck.