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Failed back surgeries and minnesota multiphasic personality inventory (MMPI) profiles
L A Bieliauskas1, G P Graziano, K Kullgren
1University of Michigan, 48109, Ann Arbor, Michigan.
Journal of Clinical Psychology in Medical Settings
|November 15, 2013
Summary
The Minnesota Multiphasic Personality Inventory (MMPI) somatogenic profile is not a reliable predictor for back pain surgery outcomes, regardless of previous surgical history. Increased surgeries did not correlate with MMPI scale changes.
Area of Science:
- Psychological assessment
- Spine surgery outcomes
- Pain management
Background:
- Previous surgeries for back pain are common.
- The Minnesota Multiphasic Personality Inventory (MMPI) is used to assess psychological factors in surgical patients.
- A somatogenic profile on the MMPI is often associated with poorer surgical outcomes.
Purpose of the Study:
- To investigate the relationship between MMPI profiles and the number of prior surgeries in patients seeking surgical treatment for back pain.
- To determine if MMPI characteristics can predict outcomes based on surgical history.
Main Methods:
- 105 prospective surgical patients with a history of back pain surgery were evaluated.
- Patients were grouped by the number of previous surgeries (0, 1, 2, 3, or 4+).
- MMPI profiles, including validity and clinical scales, were analyzed for each group.
Main Results:
- All patient groups exhibited a characteristic somatogenic MMPI profile.
- No significant differences were found between groups based on MMPI validity or clinical scales.
- The number of previous surgeries did not correlate with MMPI scale characteristics.
Conclusions:
- The somatogenic MMPI profile suggests a non-optimistic prognosis for surgical intervention in back pain patients.
- MMPI characteristics do not appear to be related to the extent of previous failed surgical experiences for back pain.
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