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<p>Meniscus loss and the resulting early-onset osteoarthritis are common causes of chronic pain and functional knee impairment. While conservative measures often demonstrate limited effectiveness, total knee arthroplasty (TEP) frequently fails to provide a&#xa0;satisfactory treatment option, particularly in younger patients with early or advanced stages of osteoarthritis. In this context, joint-preserving approaches such as knee joint distraction (KJD) and implantable shock-absorbing devices are gaining increasing attention as potential alternatives. Knee joint distraction is based on the temporary mechanical unloading of the joint using external fixation. Clinical studies have demonstrated significant short- to mid-term pain reduction and improvements in joint function. However, the relatively high incidence of soft tissue infections remains a&#xa0;notable clinical challenge. Implantable shock-absorbing systems offer joint-preserving unloading of the medial compartment without joint replacement. Preliminary clinical data indicate functional improvements and high patient satisfaction, particularly in cases with neutral or mildly malaligned limb axes. Nevertheless, the current evidence is limited, and robust comparative studies evaluating efficacy, risks, and cost-effectiveness are lacking. In summary, both knee joint distraction and implantable shock-absorbing systems represent joint-preserving alternative treatment options for younger patients with early or advanced knee osteoarthritis. However, their role compared to established conservative and surgical interventions must be further evaluated through high-quality comparative studies with long-term follow-up.</p>

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Implantierbare Federsysteme und Kniegelenksdistraktion – Indikation, Technik und Ergebnisse

  • 期刊论文

  • 发表日期：

    2025年6月24日

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  • Ahmed Ellafi,
  • Romed Vieider,
  • Johannes Holz,
  • Armin Runer

摘要

Meniscus loss and the resulting early-onset osteoarthritis are common causes of chronic pain and functional knee impairment. While conservative measures often demonstrate limited effectiveness, total knee arthroplasty (TEP) frequently fails to provide a satisfactory treatment option, particularly in younger patients with early or advanced stages of osteoarthritis. In this context, joint-preserving approaches such as knee joint distraction (KJD) and implantable shock-absorbing devices are gaining increasing attention as potential alternatives. Knee joint distraction is based on the temporary mechanical unloading of the joint using external fixation. Clinical studies have demonstrated significant short- to mid-term pain reduction and improvements in joint function. However, the relatively high incidence of soft tissue infections remains a notable clinical challenge. Implantable shock-absorbing systems offer joint-preserving unloading of the medial compartment without joint replacement. Preliminary clinical data indicate functional improvements and high patient satisfaction, particularly in cases with neutral or mildly malaligned limb axes. Nevertheless, the current evidence is limited, and robust comparative studies evaluating efficacy, risks, and cost-effectiveness are lacking. In summary, both knee joint distraction and implantable shock-absorbing systems represent joint-preserving alternative treatment options for younger patients with early or advanced knee osteoarthritis. However, their role compared to established conservative and surgical interventions must be further evaluated through high-quality comparative studies with long-term follow-up.