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Purpose <p>This study aimed to contribute to the evidence base for computer-navigated TKA by providing long-term survivorship and functional outcomes in a large single-centre series, addressing the limited follow-up duration and sample sizes in existing literature.</p> Methods <p>This retrospective study analysed 1677 consecutive computer-navigated Columbus TKA procedures performed between 2005 and 2011. Patient-reported outcomes were assessed through 10 years, with survivorship assessed at average 14 years (maximum 18 years). Kaplan-Meier analysis and Cox regression identified revision risk factors.</p> Results <p>Mean patient age was 68.8 years with 57.2% female patients. Patient-adjusted survivorship was 98.7% (14 years) and 97.0% (18 years). Sixty-one revisions occurred (3.6%), predominantly due to infection. Significant revision predictors included younger age, greater preoperative varus deformity, and poorer one-year Oxford Knee Score.</p> Conclusion <p>Computer-navigated TKA demonstrates excellent long-term functional outcome and implant survivorship. Early functional outcomes showed predictive value for long-term survival, which could inform risk stratification approaches.</p>

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Ten-year functional outcomes and up to 18-year survivorship of computer-navigated total knee arthroplasty: analysis of 1677 cases from a high-volume centre

  • 期刊论文

  • 发表日期：

    2026年3月3日

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  • Swati Chopra,
  • Lokesh Chawla,
  • Amin Bolourchi,
  • Hollie Leonard,
  • Elizabeth Beck,
  • Joseph Baines,
  • David Allen,
  • Frédéric Picard

摘要

Purpose

This study aimed to contribute to the evidence base for computer-navigated TKA by providing long-term survivorship and functional outcomes in a large single-centre series, addressing the limited follow-up duration and sample sizes in existing literature.

Methods

This retrospective study analysed 1677 consecutive computer-navigated Columbus TKA procedures performed between 2005 and 2011. Patient-reported outcomes were assessed through 10 years, with survivorship assessed at average 14 years (maximum 18 years). Kaplan-Meier analysis and Cox regression identified revision risk factors.

Results

Mean patient age was 68.8 years with 57.2% female patients. Patient-adjusted survivorship was 98.7% (14 years) and 97.0% (18 years). Sixty-one revisions occurred (3.6%), predominantly due to infection. Significant revision predictors included younger age, greater preoperative varus deformity, and poorer one-year Oxford Knee Score.

Conclusion

Computer-navigated TKA demonstrates excellent long-term functional outcome and implant survivorship. Early functional outcomes showed predictive value for long-term survival, which could inform risk stratification approaches.