Total hip replacement: a retrospective multicentric analysis on re-intervention rate after single component revision

Area of Science:

• Orthopaedic Surgery
• Biomedical Engineering

Background:

• Total hip arthroplasty (THA) revision addresses implant component failure.
• Re-revision may be necessary after initial THA revision.
• Evaluating implant stability is key to successful revision procedures.

Purpose of the Study:

• To assess the benefits of single component THA revision.
• To determine the impact of component stability on revision outcomes.
• To evaluate the efficacy of preoperative and intra-operative assessments in guiding THA revision strategies.

Main Methods:

• Multicentre study analyzing 242 THA revisions from 2007-2016.
• Exclusion of septic/traumatic loosening, and dual component revisions.
• Implant stability assessed via preoperative X-rays and intra-operative mechanical stress tests.

Main Results:

• 93% (226 patients) underwent single component revision (193 acetabular, 33 femoral).
• 7% (16 patients) required multiple revision procedures.
• Single component revisions demonstrated favorable outcomes when the remaining component was stable.

Conclusions:

• Single component THA revision is the preferred approach when the contralateral component shows no signs of loosening.
• Thorough radiological evaluation and intra-operative testing are essential for optimal treatment selection in THA revision.
• This study supports component-specific revision strategies based on stability assessment.