Magnetic Resonance Imaging Findings and Demographics Predict Surgical Versus Nonoperative Management of Rotator Cuff Injuries: A Natural Language Processing Analysis.
Authors
Affiliations (3)
Affiliations (3)
- School of Medicine, University of California San Francisco, San Francisco, California, U.S.A.
- Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, California, U.S.A.
- Department of Radiology, University of California San Francisco, San Francisco, California, U.S.A.
Abstract
To identify pathologic and demographic predictors of treatment selection and timing in patients with rotator cuff injuries using natural language processing of magnetic resonance imaging (MRI) reports. Data were retrospectively reviewed in our institution's Information Commons database. Adult patients who underwent shoulder MRI within 30 days of rotator cuff injury diagnosis (1996-2023) were identified using International Classification of Diseases codes and categorized by treatment. A Generative Pre-Transformer-4 model analyzed MRI reports using a reference list of shoulder pathologies, with validation against a human reference for 50 reports. χ<sup>2</sup> tests evaluated differences in shoulder pathology across treatment groups. Logistic regressions identified predictors of surgery-overall, as initial treatment, and after an initial trial of conservative management-while controlling for age, sex, insurance, race, and other imaging findings. A total of 3555 patients were identified, of whom 1139 underwent surgery. Natural language processing achieved 93.9% sensitivity and 99.3% specificity. Full-thickness supraspinatus tears predicted surgery overall (odds ratio [OR] 3.25; 95% confidence interval [CI], 2.54-4.17, P < .001) and after an initial trial of conservative management (OR 3.14; 95% CI, 2.23-4.41, P < .001). Full-thickness subscapularis tears also predicted surgery overall (OR 1.74; 95% CI, 1.14-2.66, P = .011). Female sex decreased the odds of surgery (OR 0.76; 95% CI 0.64-0.90, P = .001). No differences in surgical likelihood were observed by race (P = .272-.986) or between Medicare and private insurance (P = .735). MRI findings and demographics were associated with treatment selection and timing for patients with rotator cuff injuries. Natural language processing analysis of MRI reports enabled the identification of pathologic treatment predictors. Level III, retrospective prognostic cohort study.