Surgical Outcome Predictor in Degenerative Lumbar Spinal Disease Based on Health Related Quality of Life Using Euro-Quality 5 Dimensions Analysis
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초록
Purpose: We aim to introduce the predictive value of a quantitatively described formula model in a multicenter prospective analysisusing the EuroQol-5 dimensions (EQ-5D) health scale to anticipate postoperative improvement in patients with degenerativelumbar spine disease (DLSD). Materials and Methods: Quality of life was evaluated in 376 patients from 17 tertiary hospitals before and after spinal decompressionand fusion surgery. The five items of the EQ-5D, mobility (M), self-care (S), usual activities (A), pain/discomfort (P), and anxiety/depression (D), were checked as level 1, 2, or 3, with 3 being the worst. A minimal significant change in the calculated EQ-5D(cEQ-5D) was set as 0.05. Logistic regression analysis was performed to predict the highest successful outcome (cEQ-5D improvementafter operation >0.05) with the given sets of 5 items of the EQ-5D. Results: In the cEQ-5D analysis, among patients with a formula score of S+A+2×P+D≤8, 18/68 (27%) showed significant improvementin the cEQ-5D at 1 year postoperatively (p<0.05). However, in patients with a formula score of ≥9, 265/308 (86%) demonstratedsignificant improvements in the cEQ-5D at 1 year postoperatively (p<0.05). Conclusion: We suggest that S+A+2×P+D≥9 in the EQ-5D can quantitatively describe the better surgical outcome predictors forDLSD. With a definite DLSD lesion confirmed by an imaging study, patients who meet the formula scores of 9 or over and haverefractory symptoms to non-operative treatment could be better surgical candidates resulting in satisfactory surgical outcomes ofover 86%, than those who scored 8 or lower.
Abstract
Purpose: We aim to introduce the predictive value of a quantitatively described formula model in a multicenter prospective analysisusing the EuroQol-5 dimensions (EQ-5D) health scale to anticipate postoperative improvement in patients with degenerativelumbar spine disease (DLSD). Materials and Methods: Quality of life was evaluated in 376 patients from 17 tertiary hospitals before and after spinal decompressionand fusion surgery. The five items of the EQ-5D, mobility (M), self-care (S), usual activities (A), pain/discomfort (P), and anxiety/depression (D), were checked as level 1, 2, or 3, with 3 being the worst. A minimal significant change in the calculated EQ-5D(cEQ-5D) was set as 0.05. Logistic regression analysis was performed to predict the highest successful outcome (cEQ-5D improvementafter operation >0.05) with the given sets of 5 items of the EQ-5D. Results: In the cEQ-5D analysis, among patients with a formula score of S+A+2×P+D≤8, 18/68 (27%) showed significant improvementin the cEQ-5D at 1 year postoperatively (p<0.05). However, in patients with a formula score of ≥9, 265/308 (86%) demonstratedsignificant improvements in the cEQ-5D at 1 year postoperatively (p<0.05). Conclusion: We suggest that S+A+2×P+D≥9 in the EQ-5D can quantitatively describe the better surgical outcome predictors forDLSD. With a definite DLSD lesion confirmed by an imaging study, patients who meet the formula scores of 9 or over and haverefractory symptoms to non-operative treatment could be better surgical candidates resulting in satisfactory surgical outcomes ofover 86%, than those who scored 8 or lower.
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