46 years old adult male presented with dislocation of the prosthesis after total hip arthroplasty surgery. The surgery was done elsewhere and he came to OPD with complains of limb deformity and pain on weight bearing. His xray revealed a acetabular cup in unacceptable position. The cup was placed in too much retroversion. Also could […]
Hip Replacement
What Is Femoral Offset?
Femoral offset is the distance from the center of rotation of the femoral head to a line dissecting the long axis of the femur. In case of total replacement hip the the offset is considered as the distance from the center of rotation of the femoral head to a line bissecting the long axis of […]
Hip Biomechanics
Hip biomechanics are quite complex due to pelvic motion associated with it and range of movements it produces. During normal gait, on heel-strike, the hip moves into 3o degree of flexion and at toe-off [when the foot is finally off the ground] about 10° of extension. The range of abduction to adduction is about 11°, […]