What question did this study set out to answer?

To determine whether restricting positive discography criteria to low injection pressures effectively eliminates false-positive results in individuals without significant low back pain illness.

February 23, 2006Spine

Low-Pressure Positive Discography in Subjects Asymptomatic of Significant Low Back Pain Illness

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Authors

ECEugene J. CarrageeUniversity of Hawaiʻi at Mānoa TATodd F. AlaminSprint (United States)JCJohn M. CarrageeBechtel (United States)

Discussion

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Implication

Retrospective review reveals a 25% false-positive rate during low-pressure discography in individuals without chronic back pain, suggesting pressure criteria do not prevent misdiagnosis.

Key Points

To determine whether restricting positive discography criteria to low injection pressures effectively eliminates false-positive results in individuals without significant low back pain illness.
Retrospective review comparing 69 asymptomatic or non-chronic back pain volunteers across 4 subgroups (no pain, chronic non-back pain, prior discectomy, minor backache) to 52 clinical chronic low back pain patients.
Blinded raters evaluated disc injection pressure (defining low-pressure positive as significant pain elicited at <22 psi above opening pressure), morphology, imaging, and psychometric scores.
At least one low-pressure positive disc occurred in 17 of 69 (25%) experimental subjects compared to 14 of 52 (27%) clinical low back pain patients.
Subgroup positive rates were 0 of 10 (0%) in pain-free subjects, 5 of 14 (36%) in those with chronic non-back pain, 5 of 20 (25%) post-discectomy, and 7 of 25 (28%) with minor backache.
Positive low-pressure injections correlated with anular disruption, abnormal psychometric profiles, and preexisting chronic pain states.

Cite This Study

Carragee et al. (2006) studied this question.

synapsesocial.com/papers/6a8431eb002ab1506fb2a159 https://doi.org/10.1097/01.brs.0000201242.85984.76

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Implication

Retrospective review reveals a 25% false-positive rate during low-pressure discography in individuals without chronic back pain, suggesting pressure criteria do not prevent misdiagnosis.

Low-Pressure Positive Discography in Subjects Asymptomatic of Significant Low Back Pain Illness

Discussion

Member takes

Implication

Key Points

Cite This Study

Low-Pressure Positive Discography in Subjects Asymptomatic of Significant Low Back Pain Illness

Discussion

Member takes

Implication

Key Points

Cite This Study

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