Scholarlink

Introduction <p>Total hip arthroplasty (THA) for hip developmental dysplasia (DDH) carries a high perioperative complication rate, with dislocation representing the most frequent adverse event. Monoblock dual-mobility (DMM) cups have demonstrated promising results in reducing prosthetic instability while ensuring long-term implant survival. However, data specifically addressing DMM THA in low-grade DDH remain scarce.&#xa0;The aim of this study was to evaluate clinical outcomes and complication rates at a minimum ten-year follow-up in patients undergoing DMM THA for low-grade DDH.</p> Materials and methods <p>A single-centre retrospective study was conducted, including all patients who underwent DMM THA for Crowe grade I or II DDH between 2008 and 2018. Clinical outcomes including the Harris Hip Score (HHS), Postel–Merle d'Aubigné (PMA) score, Devane score, visual analog scale (VAS), and range of motion (ROM) were assessed preoperatively, at one year, and at final follow-up. Implant survival was estimated using Kaplan–Meier analysis.</p> Results <p>Thirty-one THAs were performed in 25 patients (mean age 55.1 ± 13.4&#xa0;years; mean follow-up 10.06 ± 1,98&#xa0;years). All functional scores improved significantly at final follow-up (HHS 48 to 98, PMA 11 to 17, Devane 3 to 4, all <i>p</i> &lt; 0.001). No dislocation, loosening, periprosthetic fracture, or septic complication was recorded. Implant survival was 100% at ten years.</p> Conclusion <p>The DMM THA for low-grade DDH provides excellent long-term functional outcomes with a remarkably low complication profile, supporting the routine use of DMM cups in this indication.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Monoblock dual-mobility cups in total hip arthroplasty for low-grade hip dysplasia: a retrospective series with a mean ten years follow-up

  • 期刊论文

  • 发表日期：

    2026年4月29日

查看全文
  • Michel Tramini,
  • Pierre-Henri Vermorel,
  • Alban Stordeur,
  • Sebastien Lustig,
  • Frederic Farizon,
  • Remi Philippot

摘要

Introduction

Total hip arthroplasty (THA) for hip developmental dysplasia (DDH) carries a high perioperative complication rate, with dislocation representing the most frequent adverse event. Monoblock dual-mobility (DMM) cups have demonstrated promising results in reducing prosthetic instability while ensuring long-term implant survival. However, data specifically addressing DMM THA in low-grade DDH remain scarce. The aim of this study was to evaluate clinical outcomes and complication rates at a minimum ten-year follow-up in patients undergoing DMM THA for low-grade DDH.

Materials and methods

A single-centre retrospective study was conducted, including all patients who underwent DMM THA for Crowe grade I or II DDH between 2008 and 2018. Clinical outcomes including the Harris Hip Score (HHS), Postel–Merle d'Aubigné (PMA) score, Devane score, visual analog scale (VAS), and range of motion (ROM) were assessed preoperatively, at one year, and at final follow-up. Implant survival was estimated using Kaplan–Meier analysis.

Results

Thirty-one THAs were performed in 25 patients (mean age 55.1 ± 13.4 years; mean follow-up 10.06 ± 1,98 years). All functional scores improved significantly at final follow-up (HHS 48 to 98, PMA 11 to 17, Devane 3 to 4, all p < 0.001). No dislocation, loosening, periprosthetic fracture, or septic complication was recorded. Implant survival was 100% at ten years.

Conclusion

The DMM THA for low-grade DDH provides excellent long-term functional outcomes with a remarkably low complication profile, supporting the routine use of DMM cups in this indication.