Work-related chronic low back pain-return-to-work outcomes after referral to interventional pain and spine clinics.

STUDY DESIGN

A retrospective cohort study.

OBJECTIVE

To evaluate return-to-work outcomes in patients with chronic, work-related low back pain referred to pain treatment centers and/or spine clinics (PTCs/SCs).

SUMMARY OF BACKGROUND DATA

Return-to-work outcomes in cases of work-related chronic low back pain after referral to PTCs and/or SCs have not been previously studied.

METHODS

A retrospective chart review of 230 consecutive patients was conducted from an occupational medicine program. Of these, 122 patients were referred to a PTC/SC and 108 patients were not. Multivariate logistic regression was used to develop a model to predict improvement in functional status and pain level after 1 year.

RESULTS

At the 1-year evaluation, there was functional improvement in the nonreferral group (P < 0.001) and no change in the referral group (P = 0.21). The change in pain level was similar. Time from injury to initial evaluation seemed to be the major factor contributing to poor outcomes in both groups.

CONCLUSION

Referral to a PTC/SC did not yield improved functional outcomes in this cohort. A major factor contributing to this finding was the length of time to referral to PTC/SC after the initial injury.