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Background: The purpose of this long-term (up to 17 years) follow-up study was to determine: (1) clinical results and evidence of clicking or squeaking sounds; (2) radiographic results, including rates of osseointegration, bone remodeling, and osteolysis; (3) rates of complications including thigh pain, periprosthetic fracture, and ceramic fracture; (4) rates of revision; and (5) survival rates of implants in patients younger than 30 years.Methods: We analyzed the results of 240 consecutive primary total hip arthroplasty in 180 patients (118 men and 62 women who had a mean age of 27 years (range, 21 to 30 years)). The mean follow-up was 16 years (range, 14 to 17 years).Results: Mean Harris hip score, Western Ontario and McMaster Universities score, and University of California, Los Angeles activity score were 93 points, 18 points, and 7 points, respectively, at final follow-up. Radiographically, all of the acetabular components and all but two femoral components were well-fixed at the final follow-up. No hip had osteolysis or exhibited Grade 3 stress shielding. All but two patients had no groin or thigh pain. No hip had a periprosthetic or ceramic fracture. Eight hips (3%) exhibited squeaking sounds. Two acetabular components and two femoral stems were revised. The survival of the acetabular and femoral component was 99.2% (95% confidence interval, 94 to 100%).Conclusion: The results of the present long-term study of ultra-short anatomic cementless femoral stems suggest excellent clinical and radiographic results in patients younger than 30 years. [ABSTRACT FROM AUTHOR]

Background: The purpose of this study is to determine the clinical and radiographic outcomes, mortality rate, complication rate, and revision rate of this ultra-short non-anatomic cementless femoral stem in elderly patients with a femoral neck fracture.Methods: We reviewed the results of 284 total hip arthroplasties performed with an ultra-short non-anatomic cementless stem in 280 previously active patients with a mean age of 72.8 ± 13 years (range 49-83). The mean follow-up was 9.3 years (range 7-13).Results: The mean Harris Hip Score was 86 ± 14 points at final follow-up. The mean Western Ontario and McMaster Universities Osteoarthritis Index score was 24 ± 6 points at the final follow-up. The mean University of California, Los Angeles activity score was 6 points at final follow-up. Osseointegration was seen in all acetabular (100%) and in 276 femoral components (97%). Kaplan-Meier survivorship analysis revealed that the survival rate of the femoral component at 8.3 years was 97% (95% confidence interval 91-100) and that of the acetabular component was 100% (95% confidence interval 94-100) with aseptic loosening or revision as the end point.Conclusion: An ultra-short non-anatomic cementless femoral stem in patients with good bone quality (Dorr A and some Dorr type B bone) is a safe treatment for femoral neck fracture. In patients with poor bone quality (Dorr C type), the results were very poor, and use of this stem should be avoided. [ABSTRACT FROM AUTHOR]

Background: Long-term result of the ultra-short anatomic cementless stem in the patients with idiopathic or ethanol-induced osteonecrosis of the femoral head has not been assessed. The aim of this study is to evaluate the long-term clinical, radiographic, computed tomography scan, and dual-energy X-ray absorptiometry scanning results, and survivorship of this specific femoral stem in patients with idiopathic or ethanol-induced femoral head osteonecrosis.Methods: Two hundred fifty-six patients (335 hips) with an average age of 49.8 years (range 20-63) were enrolled in the current study. All patients underwent dual-energy X-ray absorptiometry scanning of the acetabulum and proximal femur preoperatively and at final follow-up. Computed tomography scan was obtained in all patients at final follow-up. The mean follow-up was 14.7 years (range 13-16).Results: At final follow-up, the average Harris hip score, Western Ontario and McMaster Universities Osteoarthritis Index score, and University of California, Los Angeles activity score were 94 points, 12 points, and 8 points, respectively. Four stems (1%) underwent revision for aseptic loosening. One acetabular component (0.3%) was revised for recurrent dislocation. No hip was revised for squeaking or clicking sound. Survivorship of the femoral stem was 99.0% (95% confidence interval 94-100) and that of the acetabular component was 99.4% (95% confidence interval 95-100) at 14.7 years.Conclusion: Ultra-short proximal loading anatomic uncemented femoral stems with ceramic-on-ceramic bearings have excellent survivorship free from aseptic loosening and good clinical results at long term.Level Of Evidence: Level IV. [ABSTRACT FROM AUTHOR]