Comparative biomechanics IC VS QUAD SOCKET -by Sibasis pattanayak
Comparative Biomechanics IC vs Quad Comparative biomechanics – Quad socket This design does not provide a M-L skeletal support to maintain equilibrium • G.Medius fires and moves the femur laterally . • Pelvis moves medially • The perineal tissue is compressed until equilibrium is reached. • Support interior to ischial tuberosity may cause anterior rotation of the pelvis • Excessive anterior rotation can lead to lower back pain. • Anterior rotation must be countered by the anterior wall • The anterior wall may force against the structures of the femoral triangle (N.A.V.)
