Directly anterior approach for total hip arthroplasty with an acetabular structural bone graft for developmental dysplasia of the hip (Crowe III and IV): a concise 5-year follow-up evaluation

This study evaluated the results of total hip arthroplasty (THA) via the direct anterior approach (DAA) in the lateral decubitus position combined with acetabular reconstruction via a bulk autograft for patients with developmental dysplasia of the hip (Crowe III and IV). A retrospective study was conducted to analyse 16 patients (16 hips) with Crowe type III and IV developmental dysplasia of the hip (DDH) who underwent THA from June 2016 to July 2021. We recorded and analysed variables such as age, sex, height, body mass index (BMI), length of surgical incision, duration of surgery, intraoperative blood loss, Harris hip score, visual analogue scale (VAS) score, lower limb length, and pelvic radiograph analysis. The mean age of the patients was 59.3 years, the mean BMI was 22.8 kg/m , and the Crowe classification was type III in 13 hips and type IV in 3 hips. Sixteen patients were followed up with a mean follow-up time of 56.6 (32-92) months. The Harris hip score increased from 48.6 ± 7.5 points preoperatively to 89.6 ± 4.4 points at the final follow-up (t = -18.8, P