Differentiating minimum clinically important difference for primary and revision lumbar fusion surgeries

Abstract

The MCID values were similar for the revision and primary lumbar fusion groups, even when subgroup analysis was done for different diagnostic etiologies, simplifying interpretation of clinical improvement. The results of this study further validate the use of patient-reported HRQOLs to measure clinical effectiveness, as a patient's previous experience with care does not seem to substantially alter an individual's perception of clinical improvement.

Changes in quality of life after elective surgery: an observational study comparing two measures

“…Similar to previous studies in both general[28, 29] and surgical populations [13, 30], which found a MCID of approximately five points, we calculated the MCID for PCS to be approximately four and MCS approximately six. While MCIDs are traditionally reported separately for PCS and MCS, the global assessment asks patients to rate their overall quality of life, not the physical or mental components.…”

“…As a result, the minimum clinically important difference (MCID) for change in quality of life has been established for a range of specific surgical populations (approximately five points) [13, 14], but not for an unselected surgical population. Similarly, few studies have compared the change in quality of life across multiple surgical specialties.…”

Comparative effectiveness of open versus minimally invasive sacroiliac joint fusion

“…The percentage of patients who reached the threshold for an MCID of 12.8 points28–31 indicates that the change was not only statistically significant but also clinically significant. However, the MIS group experienced over four times greater improvement in ODI score (median 42 versus 9, respectively) and 82% of patients exceeded MCID values (versus 45% in the open group).…”

Neck Pain and Low Back Pain in Medical Students: A Cross-Sectional Study

“…Minimal Clinically Important Difference (MCID) scores, a minimal threshold of clinically meaningful improvement that is distinguished from statistically significant improvement, were utilized for VAS neck, VAS back and ODI to estimate the effect size for the power analysis [24,25]. MCID values used in the power analysis were 2 points for VAS neck, 2 points for VAS back and 9 points for ODI [26,27]. For PSS-10, a difference of 7 in score was used as a conservative estimate of effect size for the power analysis [23].…”