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Differences between functional versus organic low back pain patients.

Charles McCreary1, Judith Turner, Edgar Dawson

  • 1Departments of Psychiatry/Division of Medical Psychology, Psychology and Surgery/Division of Orthopedic Surgery, U.C.L.A. School of Medicine, Los Angeles, Calif. 90024 U.S.A.

Pain
|October 1, 1977
PubMed
Summary
This summary is machine-generated.

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Patients with functional low back pain show more emotional disturbance than those with organic pain, based on MMPI scores. However, personality data alone is insufficient for diagnosing individual cases due to significant overlap.

Area of Science:

  • Psychiatry
  • Orthopedics
  • Psychology

Background:

  • Contradictory findings exist regarding personality differences and emotional disturbance in functional versus organic low back pain.
  • Understanding these differences is crucial for accurate diagnosis and treatment.

Purpose of the Study:

  • To compare the personality profiles and emotional disturbance levels of patients with functional low back pain versus organic low back pain.
  • To investigate the utility of personality data in differentiating between functional and organic low back pain.

Main Methods:

  • The Minnesota Multiphasic Personality Inventory (MMPI) was administered to 42 patients with organic low back pain and 37 patients with functional low back pain.
  • MMPI scores were statistically compared between the two groups.

Related Experiment Videos

Main Results:

  • Functional low back pain patients scored significantly higher on the Hs, Hy, Pd, Sc, Ma, and Si scales compared to organic patients.
  • Organic low back pain patients scored significantly higher on the K scale than functional patients.
  • A high degree of overlap in personality data was observed between the two groups.

Conclusions:

  • Certain emotional disturbance symptoms are more characteristic of functional low back pain patients.
  • Personality data alone should be used with caution for diagnosing or predicting functional versus organic low back pain in individual patients.