Quadriceps-sparing total knee arthroplasty using the posterior stabilized TKA design.

Minimally invasive TKA is in the early stages of development. Healthy skepticism is appropriate until long-term data has been reported. Early results with the quadriceps-sparing technique are encouraging. It appears to be less painful and entail a shorter recovery time. We hope the results will remain stable as the follow-up time increases.