Modular tibial plate for minimally invasive total knee arthroplasty
Benazzo, F., Rossi, S.M.P.Knee
Purpose
Aim of the study was to evaluate the clinical and radiological results of a modular tibial plate purposely designed for minimally invasive total knee arthroplasty.
Methods
We prospectively assessed the results of 200 primary total knee replacements performed through a minimally invasive approach using a dedicated modular tibial plate, a posterior stabilized knee prosthesis, and a fixed bearing in 175 patients (139 women and 36 men), undergoing surgery between 2005 and 2009 presenting knee osteoarthritis. Median age at the time of surgery was 69 years (52–88).
Results
No patients were lost at follow-up. 3 implants underwent revision. At a mean 3 years (1–5 years) follow-up, the HHS and KSS score showed a significant improvement, increasing, respectively, from a median value of 35–95 (78–100) and from 31 points in the “knee” and 45 points in the “function” score to a median of 95 (83–100) and 94 (81–100). Using the Kaplan–Meier method, the survival rate at 5 years was 97.9% with a 95% confidence interval.
Conclusion
The implant showed good results in either clinical or radiological assessment at a short/midterm follow-up with a high survival rate.
Level of evidence
Therapeutic study, Level IV.
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