<prompt> Treatment for fracture neck of femur in a 70 year old patient with avascular necrosis of head of femur?Total hip replacementTotal knee replacementUnicondylar knee replacementHemiahroplasty  <response>: THA Total Hip Ahroplasty is usually indicated for the patients with a femoral neck fracture who meet the following criteria: Poor general health or frailty. Pathological hip fracture. Severe osteoporosis. Inadequate closed reduction. Displaced fracture that is several days old. Pre-existing hip disease eg, rheumatoid ahritis, avascular necrosisof any age 