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Objective: This study aimed to determine whether preoperative frailty assessed using the five-item modified frailty index (mFI-5) in patients undergoing posterior lumbar interbody fusion for lumbar spinal stenosis can predict poor patient outcomes.Methods: We retrospectively included 192 patients aged 18 years or older who were diagnosed with lumbar spinal stenosis and underwent posterior lumbar interbody fusion at a single hospital between March 2009 and February 2021. We calculated mFI-5 scores for these patients based on the following five comorbidities: (1) hypertension requiring medication, (2) diabetes mellitus, (3) history of chronic obstructive pulmonary disease or pneumonia, (4) history of congestive heart failure in the 30 days before surgery, and (5) partially or totally dependent functional health status at the time of surgery. The patients were categorized into three groups according to their mFI-5 scores, and these groups were analyzed. A P |
