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Knee prosthesis shows good outcomes at 7 years
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Researchers reported good clinical and radiological outcomes using the Advance Medial Pivot total knee prosthesis at 7-year follow-up, according to this study.
Two surgeons performed 160 consecutive total knee arthroplasty (TKA) surgeries with 172 Advance Medial Pivot (Wright Medical Technology; Arlington, Tenn.) Total Knee Arthroplasty implants, according to the abstract. Researchers analyzed the clinical and radiological outcomes at mean 7 years using the American Knee Society Score and the Knee Society Total Knee Arthroplasty Roentgenographic Evaluation and Scoring System. The patients were treated for end-stage idiopathic arthritis in 91.3% of cases. Other cases of arthritis included rheumatoid arthritis, post-traumatic arthritis and psoriasic arthritis.
“The targets for a successful knee replacement are pain relief and restoration of normal function and stability,” the researchers stated in the study. “In our study, 88.9% of the patients undergoing TKA with the Advance-Medial Pivot were free of pain or had occasional activity-related mild pain.”
Researchers found the Knee Society score improved in these patients from 77.6 points to 152.8 points; range of motion also increased from 97.7° to 112.5°, according to the abstract. Ninety-six percent of patients returned to daily activities after surgery and 90% of patients reported satisfactory stability and comfort. Overall, the Kaplan-Meier survivorship was 98.6% and excellent or good functional scores in 85.8% of cases and good knee scores in 82.4% of cases.
Disclosure: The authors have no relevant financial disclosures.
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