Evaluating Prescriber Adherence to a Standardized Postoperative Opioid Prescription Protocol for Cubital Tunnel Surgery.

Purpose: Concerns regarding the ongoing opioid epidemic have led to the implementation of standardized postoperative opioid-prescribing protocols for many common hand surgical procedures. This study investigated patient- and procedure-specific factors affecting adherence to a standardized postoperative opioid-prescribing protocol after cubital tunnel surgery.

Methods: A retrospective review of patients who underwent primary cubital tunnel surgery within one academic medical system between October 1, 2016 (after the implementation of a standardized postoperative opioid-prescribing protocol) and March 1, 2020 was performed. Patients aged <18 years or with a history of revision surgery, prior traumatic ulnar nerve injury, additional concurrent surgical procedures, or a surgeon not participating in the protocol were excluded. Patient demographics, comorbidities, prior opioid history, and surgical variables were recorded. The primary outcome was adherence to the standardized postoperative opioid-prescribing protocol. A bivariate statistical analysis was performed.

Results: Ninety-eight patients were included. The median initial postoperative prescription amount was 75 morphine equivalent units (100% of protocol target) for 78 patients (80% of cohort) who underwent in situ decompression and 75 morphine equivalent units (50% of protocol target) for 20 patients (20% of cohort) who underwent decompression with ulnar nerve transposition. Forty-nine percent of initial opioid prescriptions adhered to protocol, compared with 26% below target and 26% above target. In the bivariate analysis, recent opioid prescriptions within 3 months preoperatively were associated with improved prescriber protocol adherence; longer tourniquet time and anterior transposition were associated with prescriptions below target, and in situ decompression was associated with prescriptions above target.

Conclusions: Variation in postoperative opioid-prescribing patterns persists despite the implementation of a standardized postoperative opioid-prescribing protocol. Recent opioid prescriptions were associated with protocol adherence, possibly reflecting increased provider vigilance in this patient population. Differing target prescription amounts for in situ decompression versus decompression with anterior transposition may be unnecessary.

Type Of Study/level Of Evidence: Therapeutic IV.