Quantifying bone loss from the proximal femur after total hip arthroplasty

摘要: To define the natural history of bone loss around a femoral prosthesis, mineral content and density were measured for each femur in 28 patients with unilateral total hip arthroplasty, 18 age-matched controls, seven osteoarthritis. The areas inside lesser trochanter 4.8 cm distal to it. contralateral served as control. Three years after arthroplasty there was 40% average trochanter, 28% distally medial cortex. At 14 operation, had lost proximally 49% distally. data suggest that this may progress proximal-to-distal fashion, could account 50% decrease mass surgery.