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Purpose <p>To evaluate the association between preoperative MRI imaging and clinical outcomes following Unicompartmental knee arthroplasty (UKA).</p> Methods <p>We searched PubMed, Scopus, Web of Science, and Embase for studies related to preoperative MRI abnormalities and clinical outcomes in patients undergoing UKA. The quality assessment was done by the National Institutes of Health’s (NIH) Study Quality Assessment Tools. A random-effects model with Hedges’g (standardized mean difference, SMD) and 95% confidence intervals (CIs) was used to assess the impact of meniscal injury and bone marrow lesions (BMLs) on clinical outcomes.</p> Results <p>18 studies (2751 patients) were included. The meta-analysis found that preoperative meniscal injury (Hedges’ <i>g</i> = − 0.060, <i>p</i> = 0.544) and bone marrow lesions (Hedges’ <i>g</i> = − 0.197, <i>p</i> = 0.386) did not significantly impact clinical outcomes following UKA. Other MRI abnormalities, such as those affecting the anterior cruciate ligament (ACL) integrity, did not impact the functional outcomes. However, findings regarding cartilage defects were inconsistent.</p> Conclusion <p>Preoperative MRI features such as meniscus injury, BML, and ACL integrity did not result in equivalent clinical outcomes following UKA and may not necessitate altering the surgical plan. Surgeons should integrate MRI findings with clinical assessment and patient-specific factors rather than relying solely on these imaging abnormalities to guide decision-making.</p>

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Preoperative MRI abnormalities are not associated with poor outcomes or altered surgical planning in unicompartmental knee arthroplasty: a systematic review and meta-analysis

  • 期刊论文

  • 发表日期：

    2025年8月22日

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  • Ali Salmani,
  • Yashar Khani,
  • Mohammadkazem Shojaei,
  • Farid Rashidid,
  • Ramila Abedi-Azar,
  • Ali Darzi Dehkalani,
  • Mohamad Ghazanfari Hashemi,
  • Khazar Adibmoradi Langroudi,
  • Amir Mehrvar

摘要

Purpose

To evaluate the association between preoperative MRI imaging and clinical outcomes following Unicompartmental knee arthroplasty (UKA).

Methods

We searched PubMed, Scopus, Web of Science, and Embase for studies related to preoperative MRI abnormalities and clinical outcomes in patients undergoing UKA. The quality assessment was done by the National Institutes of Health’s (NIH) Study Quality Assessment Tools. A random-effects model with Hedges’g (standardized mean difference, SMD) and 95% confidence intervals (CIs) was used to assess the impact of meniscal injury and bone marrow lesions (BMLs) on clinical outcomes.

Results

18 studies (2751 patients) were included. The meta-analysis found that preoperative meniscal injury (Hedges’ g = − 0.060, p = 0.544) and bone marrow lesions (Hedges’ g = − 0.197, p = 0.386) did not significantly impact clinical outcomes following UKA. Other MRI abnormalities, such as those affecting the anterior cruciate ligament (ACL) integrity, did not impact the functional outcomes. However, findings regarding cartilage defects were inconsistent.

Conclusion

Preoperative MRI features such as meniscus injury, BML, and ACL integrity did not result in equivalent clinical outcomes following UKA and may not necessitate altering the surgical plan. Surgeons should integrate MRI findings with clinical assessment and patient-specific factors rather than relying solely on these imaging abnormalities to guide decision-making.