Journal of craniovertebral junction & spine
Preoperative step count as a predictor of early postoperative mobility and patient-reported outcomes following lumbar spine surgery
By Song J, Katz AD, Hoang T and 10 others.
Abstract
Objectives
Objective activity monitoring may provide scalable, real-world functional data in lumbar spine surgery patients. We evaluated whether preoperative daily step count predicts early postoperative ambulation and patient-reported outcomes (PROs).
Materials and methods
We performed a retrospective cohort study of adults undergoing elective lumbar decompression, discectomy, or fusion with remote monitoring of daily step counts (preoperative days 7-1 and postoperative days [PODs] 1-28) and longitudinal PROs (Patient-Reported Outcomes Measurement Information System [PROMIS] - Pain/Physical/Mental and Oswestry Disability Index [ODI] at baseline, 6 weeks, 12 weeks, 6 months, and 1 year). Patients were stratified by mean preoperative step count into low activity (<2500 steps/day) versus normal activity (≥2500 steps/day). Between-group comparisons used the Chi-square tests for categorical variables and independent t-tests for continuous variables (P < 0.05).
