Development and validation of a predictive nomogram for cage migration after posterior lumbar interbody fusion: a retrospective study of 517 patients

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Cage migration (CM) is a significant complication following posterior lumbar interbody fusion (PLIF), occurring in 8.9% of patients.
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Independent risk factors for CM identified include osteoporosis, spondylolisthesis, Modic type I changes, PI-LL mismatch, and preoperative hemoglobin levels.
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A predictive nomogram was developed based on five significant variables to assess the risk of CM in patients undergoing PLIF.
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The nomogram demonstrated strong discrimination and calibration, with an AUC of 0.874, indicating its effectiveness in predicting CM.
5

The nomogram can assist healthcare professionals in preoperative risk assessment and tailoring surgical plans to improve patient outcomes.

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