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Timing-specific Debridement, Antibiotics, and Implant Retention and 2-Stage Revision for Megaprosthesis-Related
Rajeev K Sharma1, Imelda Lumban-Gaol2, Udit Vinayak1
1Institute of Orthopaedics & Joint Replacement, Moolchand Medcity, New Delhi, India.
Background:
This study aimed to evaluate the outcomes of debridement, antibiotics, and implant retention (DAIR) procedures and 2-stage revision surgeries in patients with periprosthetic joint infection following megaprosthesis, including treatment failure; the patient-reported outcomes; and to determine the survival rates of the revised megaprosthesis.
Methods:
A retrospective study of 30 patients diagnosed with periprosthetic joint infection following megaprosthesis between 2018 and 2023, with minimum 1-year follow-up. Patients with previous unsuccessful debridement in other institutions were excluded. Patients presenting within 4 weeks of megaprosthesis implantation underwent the DAIR procedure, while those presenting after this window were taken for a 2-stage revision surgery. The primary outcome was treatment failure, defined as persistent wound complication or the need for subsequent surgical intervention. The secondary outcomes included patient-reported outcomes, assessed with the Oxford Hip Score and Oxford Knee Score, and the survival rates of the revised megaprosthesis.
Results:
The mean follow-up duration for all patients was 38 ± 12.6 months. Improvement was found for Oxford Hip Score and Oxford Knee Score with mean 34.22 ± 9.2 and 32.40 ± 8.1, respectively, at the 1-year follow-up. DAIR achieved an 81% success rate (13 out of 16) and 2-stage exchange had a 71.4% success rate (10 out of 14).
Conclusions:
Both DAIR and 2-stage exchange procedures yielded favorable functional outcomes with satisfactory 2-year survival function. Careful patient selection and indication management are crucial for optimal results.
Level Of Evidence:
Level IV.
Insights
This study compared debridement, antibiotics, and implant retention (DAIR) with 2-stage revision for periprosthetic joint infection after megaprosthesis implantation. Both methods showed good functional outcomes and survival rates, emphasizing careful patient selection.
Area of Science:
- Orthopedic surgery
- Infectious diseases
- Biomaterials science
Background:
- Periprosthetic joint infection (PJI) following megaprosthesis implantation presents significant treatment challenges.
- Evaluating the efficacy of different surgical strategies is crucial for improving patient outcomes.
Purpose of the Study:
- To compare the outcomes of debridement, antibiotics, and implant retention (DAIR) versus 2-stage revision surgery for PJI after megaprosthesis.
- To assess treatment failure rates, patient-reported outcomes, and implant survival.
- To determine the effectiveness of these interventions in a real-world clinical setting.
Main Methods:
- Retrospective study of 30 patients with PJI following megaprosthesis (2018-2023).
- Patients treated with DAIR (within 4 weeks of implantation) or 2-stage revision (after 4 weeks).
- Outcomes assessed included treatment failure, Oxford Hip/Knee Scores, and implant survival rates.
Main Results:
- Mean follow-up was 38 months.
- Significant improvement in Oxford Hip/Knee Scores at 1 year.
- DAIR success rate: 81% (13/16); 2-stage exchange success rate: 71.4% (10/14).
Conclusions:
- Both DAIR and 2-stage exchange offer favorable functional outcomes and satisfactory 2-year survival for PJI after megaprosthesis.
- Careful patient selection and precise indication management are essential for optimizing surgical results.
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