Long-term survival of a semi-constrained implant following revision for infection.
retrospective_cohort · Level III
Where this comes from
- Record sourced from PubMed, PMID 25769740.
- Also identified by DOI 10.1016/j.arth.2014.10.037.
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Abstract
Revision total knee arthroplasty (TKA) in prosthetic joint infections (PJI) is a challenging problem. We evaluated our institutional experience with a semi-constrained implant placed in a PJI setting. Seventy-eight TKAs in 75 patients with a history of a PJI were identified. The average follow-up was 7.5 years. Twenty-three (29%) underwent repeat revision surgery. Five and 10 year survivals were 71% and 64%, respectively. The most common reason for repeat revision surgery was recurrent infection (78%). Smoking and elevated BMI increased the risk of repeat revision surgery. Significant improvements were maintained long term in pain and range of motion (P < 0.01 and P = 0.02). In the absence of repeat infection, long term pain relief and improved function may be expected with the semi-constrained implant.
Medical subject headings
- Arthroplasty, Replacement, Knee
- Infections
- Knee Prosthesis
- Prosthesis Failure
- Reoperation
Anatomy
- knee