Study of Survivorship and Functional Outcome of Total Hip Arthroplasty in Avascular Necrosis of Femur Head

Osteonecrosis of the femoral head is not a specific diagnostic entity, but rather the final common pathway of a series of derangements that produce a decrease in blood flow, leading to cellular death within the femoral head. It can present with a number of clinical manifestations. The most common complaint is a deep, intermittent, throbbing pain in the groin region which has an insidious onset. In the early stages, prophylactic measures are used to prevent further progression of the disease. When the patient is diagnosed in later stages, the collapse and distortion of the femoral head can be seen, for which a reconstructive procedure is the treatment of choice. The goals of total hip arthroplasty are to relieve pain, to provide motion with stability and to correct deformity so that they are able to return to their normal daily activities. Total hip arthroplasty can be the first treatment of choice. especially in the advanced stages of hip osteonecrosis, or can be reserved as a salvaging procedure when other more conservative treatments fail. Total Hip Arthroplasty is a good modality of treatment for patients with very poor pre-surgical functional scores combined with an excellent long term survival of the cement-less implants.