Favorable midterm clinical results of medial unicompartmental knee arthroplasty guided by coronal limb alignment using an image-free navigation system

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  • 1

    Medial unicompartmental knee arthroplasty (UKA) offers excellent outcomes but is prone to malpositioning and alignment issues with conventional techniques.

  • 2

    Image-free navigation is utilized in this study to enhance coronal limb alignment and minimize tibial resection during medial UKA.

  • 3

    The study included 144 knees with a mean follow-up of 63.1 months, focusing on midterm clinical outcomes and implant-related complications.

  • 4

    Postoperative goals include achieving a hip-knee-ankle angle of 2°–5° varus to improve patient satisfaction while avoiding excessive deformity.

  • 5

    Results indicate that alignment-guided medial UKA using image-free navigation can lead to favorable clinical outcomes and low complication rates.

Original Source(s)

Favorable midterm clinical results of medial unicompartmental knee arthroplasty guided by coronal limb alignment using an image-free navigation system

  • by Kengo Shimozaki, Shingo Shimozaki, Eiji Shimozaki

  • March 13, 2026

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