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KMID : 1040920220070010125
Journal of Minimally Invasive Spine Surgery and Technique
2022 Volume.7 No. 1 p.125 ~ p.131
Do Patient Expectations Represent a More Important Clinical Difference? A Study of Surgical Outcomes in the Cervical Spine
Lynch Conor P.

Cha Elliot D. K.
Jacob Kevin C.
Patel Madhav R.
Geoghegan Cara E.
Vanjani Nisheka N.
Pawlowski Hanna
Prabhu Michael C.
Singh Kern
Abstract
Objective: This study aims to compare the impact of achieving an MCID or meeting preoperative expectations on patient satisfaction following cervical spine procedures.

Methods: A surgical database was retrospectively reviewed for cervical spine surgery patients from 2016 to 2020. Inclusion criteria were primary or revision, single- or multilevel cervical disc arthroplasty or anterior cervical discectomy and fusions (ACDF). Visual analogue scale (VAS) neck and arm pain was assessed preoperatively and postoperatively (6-week, 12-weeks, 6-months, 1-year). Preoperative patient expectation and postoperative satisfaction were recorded. MCID achievement was determined using previously established values. Expectations met and MCID achievement were compared as possible predictors of satisfaction.

Results: One hundred and six cervical spine patients were included. Both meeting expectations and achieving MCID were significant predictors of satisfaction for arm pain at 6-weeks and 12-weeks (all p¡Â0.007). Achieving MCID significantly predicted satisfaction for neck pain at all timepoints (all p¡Â0.007) and meeting expectations predicted satisfaction for neck pain at 6-weeks, 12-weeks, and 1-year (all p¡Â0.003). Comparison of coefficients revealed no significant difference in effect size between meeting expectations and achievement of MCID as predictors of patient satisfaction (all p>0.050).

Conclusion: MCID achievement and meeting expectations were significant predictors of satisfaction for neck pain and short-term arm pain. Both measures may be similarly useful for interpretation of patient outcomes and the optimal choice of metric may depend on practice-specific factors.
KEYWORD
Total disc replacement, Minimal clinically important difference, Patient reported outcome measures, Patient satisfaction, Cervical vertebrae
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