Meniscectomy within 1 year prior to TKA may be associated with poor functional outcomes
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Key takeaways:
- Meniscectomy within 1 year prior to knee arthroplasty may be a risk factor for poor functional outcomes.
- Meniscectomy within 6 months prior to knee arthroplasty may be a risk factor for aseptic revision.
Published results showed meniscectomy within 1 year prior to total knee arthroplasty may be a risk factor for poor functional outcomes compared with patients who had no history of meniscectomy.
Results also showed patients who undergo meniscectomy within 6 months before TKA may be at a significantly increased risk for aseptic revision.
Irfan A. Khan, MD, ATC, orthopedic surgery resident at Louisiana State University Health Sciences Center, and colleagues performed a retrospective cohort study of data from 589 patients who underwent meniscectomy prior to TKA and a control cohort of 1,767 patients who had no history of meniscectomy.
Overall, 82 patients underwent meniscectomy within 6 months before TKA, 125 patients underwent meniscectomy between 6 months and 1 year before TKA, 118 patients underwent meniscectomy between 1 year and 2 years before TKA and 264 patients underwent meniscectomy more than 2 years before TKA.
According to the study, the primary outcome measure was the Knee Injury and Osteoarthritis Outcome Score for Joint Replacement score.
Khan and colleagues found mean postoperative KOOS JR scores were significantly lower for patients who underwent meniscectomy within 6 months before TKA (68 points) and between 6 months and 1 year before TKA (71 points) compared with patients who had no history of meniscectomy (75 points).
They also found patients who underwent meniscectomy within 6 months before TKA had a significantly higher rate of aseptic revision compared with patients who underwent meniscectomy more than 6 months before TKA and patients who had no history of meniscectomy.
“Undergoing arthroscopic knee surgery may exacerbate existing synovitis and cause further elevation in pro-inflammatory cytokines, which may lead to an exacerbated pro-inflammatory state when undergoing primary TKA, leading to prolonged recovery and worse outcomes postoperatively,” Khan and colleagues wrote in the study.
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