Establishing surgical volume benchmarks for Orthopaedic Trauma Association (OTA)-accredited fellowship training

Case volumes of trauma centers and surgeons influence clinical outcomes following orthopaedic trauma surgery. This study quantifies surgical volume benchmarks for Orthopaedic Trauma Association (OTA)-accredited fellowship training in the United States.

This was a retrospective cross-sectional study of orthopaedic trauma fellows graduating between 2018 and 2019 to 2022-2023. Case volume percentiles were calculated across categories and variability defined as the fold-difference between 90th and 10th percentiles. Temporal trends were assessed with linear regression.

446 orthopaedic trauma fellows were included in this study. Mean reported case volume increased from 898 ± 245 in 2018-2019 to 974 ± 329 in 2022-2023 (P = 0.066). Mean case volume was 924 over the study period and mostly consisted of other (418 cases, 45 %), subtrochanteric/intertrochanteric femoral neck (84 cases, 9 %), open fracture debridement (72 cases, 8 %), pelvic ring disruption / fracture (55 cases, 6 %), acetabular fracture (41 cases, 4 %), tibial shaft fracture (39 cases, 4 %), and femoral shaft fracture (38 cases, 4 %) cases. Overall variability in total reported case volume was 2.0. Variability was greatest in distal radius fracture (14.8), amputation (9.5), fasciotomy (8.0), and proximal humerus repair (5.0).

Graduates from OTA-accredited fellowship training perform 924 cases on average, which exceeds the current minimum requirement of 600 cases. Case volume benchmarks can assist trainees and faculty align training goals with fellowship program strengths. More research is needed to determine evidence-based case minimum requirements for core competency training in orthopaedic trauma surgery.