Greater trochanteric bone flap grafting with vascular pedicles for the treatment of femoral head osteonecrosis in patients with systemic lupus erythematosus: A retrospective study
Abstract Background: Osteonecrosis of the femoral head is a complication of systemic lupus erythematosus,that affect the patient's quality of life seriously.This article reviewed the radiographs of osteonecrosis of the femoral head in patients with systemic lupus erythematosus and assessed the effect of using the greater trochanteric bone flap grafting with vascular pedicles.Methods: We retrospectively reviewed 17 patients (26 hips) with systemic lupus erythematosus who underwent the greater trochanteric bone flap grafting with vascular pedicles for the treatment of osteonecrosis of the femoral head. According to Ficat and Arlet classification, 16 hips were in stage II; 10 hips were in stage III. All patients were followed up for a mean of 32 months (ranging 12~48 months) and were assessed clinically and radiologically according to Harris scoring.Results: No hips were treated with total hip arthroplasty in the follow-up. The mean HHS was improved from preoperative 69.1 points (ranging 52–83 points) to postoperative 89.4 points (ranging 56–100 points). At the latest follow-up, of 26 hips, radiographically 21 hips (80.77%) were improved, 3 hips (11.54%) were unchanged and just 2 hips (7.69%) were worse.Conclusion: The greater trochanteric bone flap grafting with vascular pedicles was successful in maintaining joint function and in delaying the need for joint replacement procedure.