Randomized controlled trial shows no superior clinical outcomes for PSI versus MPI in unicompartmental knee arthroplasty, despite learning curve challenges for inexperienced surgeons.
The PSI-assisted UKA performed by inexperienced surgeon on a learning curve can yield excellent radiographic and functional outcomes in short-term follow-up, despite not demonstrating superior clinical outcomes to MPI-assisted UKA performed by an experienced surgeon. The PSI could potentially serve as an alternative instrumentation for UKA beginners with low-volume surgical caseload.
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Deng et al. (2025) studied this question.
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