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Revision Total Ankle Arthroplasty Using the INBONE II System.
Kevin A Wu1, Albert T Anastasio1, Dongoh Lee2
1Division of Foot and Ankle, Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, NC, USA.
Foot & Ankle International
|March 6, 2024
Summary
Revision total ankle arthroplasty (TAA) using the INBONE II system shows high complication rates but fair clinical outcomes. The 3-year survivorship from reoperation was 92%, indicating potential for this salvage procedure.
Area of Science:
- Orthopedic Surgery
- Biomaterials Engineering
Background:
- Total ankle arthroplasty (TAA) is increasingly used for severe ankle osteoarthritis.
- Primary TAA failure necessitates a rise in revision TAA procedures.
- Evaluating revision TAA outcomes is crucial for limb salvage strategies.
Purpose of the Study:
- To assess the clinical results of revision TAA using the INBONE II system.
- To evaluate early experiences with revision TAA in a presumed noninfected patient cohort.
- To determine implant survival and complication rates following INBONE II revision TAA.
Main Methods:
- Retrospective analysis of 60 patients undergoing revision TAA with the INBONE II system.
- Data collection included demographics, implant details, concurrent procedures, and complications.
- Kaplan-Meier analysis was used to estimate implant survival and survivorship free from reoperation/major complications.
Main Results:
- High complication rates were observed in 36.7% of patients (22/60).
- Common complications included persistent pain, nerve injury, infection, fracture, and implant failure.
- The 3-year survivorship rate from reoperation was 92.0%, and from major complications was 90.4%.
Conclusions:
- Revision TAA with the INBONE II system yields generally fair clinical results despite high complication rates.
- The system demonstrates a reasonable survivorship, suggesting its utility as a salvage option.
- Further research may focus on mitigating complications in revision TAA procedures.
