Friday, September 28, 2018 1:00 PM–2:30 PM abstracts: achieving lumbar interbody fusion: 195. Preoperative PROMIS score is not predictive of postoperative pain, narcotics consumption, or patient-reported outcomes after minimally invasive transforaminal lumbar interbody fusion

Abstract

BACKGROUND CONTEXT Minimally invasive transforaminal lumbar interbody fusion (MIS TLIF) is an effective therapy for the treatment of lumbar degenerative disease. Recently, the Patient-Reported Outcomes Measurement Information System (PROMIS) has been utilized to quantify patients’ physical health prior to surgery. However, no study has identified if preoperative PROMIS score is associated with postoperative pain, narcotics utilization, or patient reported outcomes (PROs) after spinal procedures. PURPOSE To determine if preoperative physical health as measured by PROMIS is predictive of immediate postoperative patient pain, narcotics consumption, or PROs after MIS TLIF procedures. STUDY DESIGN/SETTING Retrospective cohort. PATIENT SAMPLE A total of 99 patients who underwent primary, single-level MIS TLIF from 2015 to 2017. OUTCOME MEASURES Oswestry Disability Index (ODI), Visual Analogue Scale (VAS) back, and VAS leg scores, postoperative inpatient narcotic consumption. METHODS A prospectively-maintained surgical registry was retrospectively reviewed. Patients who underwent primary, single-level MIS TLIF for degenerative pathology from 2015 to 2017 were identified. Patients were grouped by PROMIS score (≥35, RESULTS A total of 99 patients with complete PROMIS data were included. 58.6% (N=58) had PROMIS scores ≥35, while 41.4% (N=41) had PROMIS scores CONCLUSIONS Patient physical function, as defined by PROMIS, did not predict increased pain or narcotics consumption after MIS TLIF. While patients with worse physical function had higher preoperative disability and leg pain, this was not associated with decreased postoperative improvement.