Prior investigations have shown a decrease in periprosthetic bone mineral density (BMD) of the calcar following total hip arthroplasty (THA). The purpose of this investigation was to study proximal femur BMD in a cohort of young, active patients following THA at 1 year postoperatively using a recently introduced stem design.
This was a prospective, IRB-approved investigation of patients with an age <65 years, BMI <35 kg/m
31 patients (mean age of 52.6 + 6.5 years, BMI of 27.9 + 3.9 kg/m
This study demonstrates the maintenance of medial calcar bone density at 1 year postoperatively in young, active patients undergoing THA. Further longitudinal analysis of this stem design is necessary to elucidate the significance of this finding.