Disparities in Treatment of Closed Distal Radius Fractures in Patients Aged 18-64 Years and ≥65 Years by Insurance Type.

purposeType of and time to definitive treatment for distal radius fractures can influence the outcomes. The impact of social determinants of health (eg, insurance type) on distal radius fracture care remains unknown despite having health equity implications. Thus, we evaluate the association between insurance type and rate of surgery, the time to surgery, and the complication rate for distal radius fractures.

methodsWe conducted a retrospective cohort study using the PearlDiver Database. We identified adults with closed distal radius fractures. Patients were divided into subgroups by age (18-64 years, 65+ years) and further stratified on the basis of the insurance type (Medicare Advantage, Medicaid-managed care, and commercial). The primary outcome was the rate of surgical fixation. Secondary outcomes included the time to surgery and 12-month complication rates. Logistic regression modeling was used to calculate the odds ratios for each outcome, adjusting for age, sex, geographic region, and comorbidities.

resultsIn patients aged ≥65 years, a lower proportion of Medicaid patients underwent surgery within 21 days of diagnosis compared with Medicare or commercially insured patients (12.1% vs 15.9% or 17.5%, respectively). Complication rates did not differ between Medicaid and other insurance types. In patients aged <65 years, fewer Medicaid patients underwent surgery compared with commercially insured patients (16.2% vs 21.1%). However, in this younger group, Medicaid patients had higher adjusted odds of malunion/nonunion (adjusted odds ratio [aOR] = 1.39 [95% CI, 1.31-1.47]) and subsequent repair (aOR = 1.38 [95% CI, 1.25-1.53]). DISCUSSION: Although older Medicaid patients experienced lower surgical rates, this may not lead to differential clinical outcomes. However, Medicaid patients aged <65 years experienced lower surgical rates that correlated with the increased rates of malunion or nonunion. CLINICAL RELEVANCE: In younger patients with a closed distal radius fracture and Medicaid insurance, system and patient-directed efforts should be considered to address delayed time to surgery and a higher odds for malunion/nonunion.