The safety and efficacy of one-stage bilateral metal-on-metal hip resurfacing arthroplasty

The objective of this study was to report the perioperative safety and efficacy of single-stage, bilateral hip resurfacing arthroplasties (HRAs) in 104 patients. The mean preoperative ASA grade was 1.7 +/- 0.6, and the mean total operative time was 3 hours and 31 minutes (+/- 32 mins). 13 patients (12.5%) required a homologous blood transfusion. Local complications included 5 patients with unilateral, serous, incisional drainage after postoperative day 3, with 1 patient (0.9%) requiring a superficial irrigation and debridement. One systemic complication (0.9%) was noted, as one patient developed atrial fibrillation. There were no episodes of femoral neck fracture, deep venous thrombosis, or pulmonary embolism, although routine screening for thromboembolic disease was not performed. Hospital length of stay averaged 4.1 +/- 0.9 days, with 76% of patients discharged home. A single-stage procedure carries an acceptable complication risk, requires a low rate of homologous blood transfusion, and has a low rate of local and systemic complications when performed in the appropriately selected patient.