Are preoperative health-related quality of life scores predictive of clinical outcomes after lumbar fusion?
STUDY DESIGN: Prospective longitudinal cohort. OBJECTIVE: This study evaluated the effect of preoperative Mental Component Summary (MCS), preoperative Physical Component Summary (PCS), preoperative Oswestry Disability Index (ODI), back pain predominance, body mass index (BMI), age, smoking status, and workers’ compensation on health-related quality of life after lumbar fusion. These factors were selected as they are readily available and may influence a surgeon’s decision-making process. SUMMARY OF BACKGROUND DATA: Measures of health-related quality of life are increasingly used to evaluate treatment effectiveness. However, their use as a predictive tool to determine which patients will improve has been limited. METHODS: The Short Form 36 (SF-36) and ODI were collected before surgery and two years after surgery in 489 patients undergoing lumbar fusion for degenerative disorders. Linear regression modeling was used to determine the effect of preoperative MCS, preoperative PCS, preoperat
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