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Background <p>Unicompartmental knee replacement (UKA) is an established treatment option for end-stage medial-compartment knee osteoarthritis, offering excellent functional outcomes and implant longevity. The borderline indications for this procedure particularly require a&#xa0;nuanced indication strategy, careful patient selection, and precise knowledge of the implant being used.</p> Treatment <p>UKA remains a&#xa0;successful treatment option even in cases with a&#xa0;borderline indication. Due to its low perioperative morbidity and mortality and good functional outcomes, it should be an integral part of individualized treatment decisions.</p> Results <p>UKA following osteotomy is technically demanding but offers numerous advantages over total knee arthroplasty. Cementless implants can also be used in cases of osteonecrosis, if secure primary fixation can be ensured. Medial osteoarthritis with an anterior cruciate ligament (ACL) lesion without clinical instability does not contraindicate the use of medial UKA. Medial meniscal root tears without advanced osteoarthritis represent an absolute borderline indication for medial UKA.</p>

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Grenzindikationen für den medialen unikondylären Gelenkersatz

  • 期刊论文

  • 发表日期：

    2025年8月6日

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  • Wenzel Waldstein,
  • Conradin Schweizer,
  • Christian Merle,
  • Peter R. Aldinger

摘要

Background

Unicompartmental knee replacement (UKA) is an established treatment option for end-stage medial-compartment knee osteoarthritis, offering excellent functional outcomes and implant longevity. The borderline indications for this procedure particularly require a nuanced indication strategy, careful patient selection, and precise knowledge of the implant being used.

Treatment

UKA remains a successful treatment option even in cases with a borderline indication. Due to its low perioperative morbidity and mortality and good functional outcomes, it should be an integral part of individualized treatment decisions.

Results

UKA following osteotomy is technically demanding but offers numerous advantages over total knee arthroplasty. Cementless implants can also be used in cases of osteonecrosis, if secure primary fixation can be ensured. Medial osteoarthritis with an anterior cruciate ligament (ACL) lesion without clinical instability does not contraindicate the use of medial UKA. Medial meniscal root tears without advanced osteoarthritis represent an absolute borderline indication for medial UKA.