Key result
Patients with within normal limit and Triad MMPI-2 profiles reported significantly more satisfaction with postsurgical improvement than those with Depressed-pathological or V-type profiles.
Why the study?
Does MMPI-2 profile type predict surgical outcomes in low-back pain patients?
Observational (n=201)
Does MMPI-2 profile type predict surgical outcomes in low-back pain patients?
Pre-surgical MMPI-2 personality profiles can help predict patient satisfaction and functional outcomes following back surgery.
MMPI-2 profiles were associated with postsurgical satisfaction in back pain; leaves open whether routine preoperative screening improves outcomes.
The purpose of this study was to investigate back surgery outcome differences based on Minnesota Multiphasic Personality Inventory-2 (MMPI-2) profile types. Four homogenous subgroups were found from a hierarchical cluster analysis of 201 MMPI-2 profiles. These four clusters consisted of a Depressed-pathological profile, a conversion V profile (V-type), a neurotic Triad profile, and a within normal limit (WNL) profile. Patients in the WNL and Triad subgroups reported significantly more satisfaction with postsurgical improvement than did patients in the Depressed-pathological or V-type subgroups. The Triad subgroup also gave a more favorable subjective rating of surgical outcome than did patients in the Depressed-pathological or V-type subgroups. These groups also differed on measures of work status and nonwork-related physical activity levels but not on indices of pain.
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Riley et al. (1995) conducted an observational in Low-Back Pain (n=201). MMPI-2 cluster profiles vs. Between-group comparisons (WNL, Triad, Depressed-pathological, V-type) was evaluated on Satisfaction with postsurgical improvement and subjective rating of surgical outcome. Patients with within normal limit and Triad MMPI-2 profiles reported significantly more satisfaction with postsurgical improvement than those with Depressed-pathological or V-type profiles.
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