Trends in the Management of Traumatic Upper Extremity Amputations

Treatment for upper extremity amputations includes revision amputation or attempted replantation. The rate of digital replantation has been declining in the United States. Prior studies discovered the presence of socioeconomic disparities associated with these injuries. The goals of this study were to investigate yearly trends of traumatic upper extremity amputations and evaluate the presence of disparities with access to care in these injuries.

The 2008 to 2014 New York Statewide Planning and Research Cooperative System (SPARCS) inpatient and outpatient databases were utilized to identify patients who had traumatic upper extremity amputations. We queried the database for patient characteristics, resource utilization characteristics, insurance status, major in-hospital complications, and mortality. Patients at low-, medium-, and high-volume institutions were compared. We performed multivariable logistic regressions for the binary variable replantation (yes/no) controlling for age, sex, race, insurance status, amputation level, admission hour, and comorbidities.

A total of 2,492 patients met our inclusion criteria: 92.1% sustained digital amputations and 7.9% sustained arm amputations. The annual rate of inpatient finger amputations decreased significantly (1.9 per 100,000 people in 2008 vs 1.4 per 100,000 people in 2014) during the study period while that of outpatient finger amputations increased significantly (12.0 per 100,000 people in 2008 vs 15.5 per 100,000 people in 2014). Multivariable analysis demonstrated incrementally lower odds for replantation with increasing age and increased odds for replantation in patients with private insurance (odds ratio, 1.64; 95% confidence interval, 1.08-2.50). The number of replantation surgeries at medium-volume institutions decreased by 45% while remaining steady in low- and high-volume institutions.

Our findings corroborate the findings of other studies that underscore the existence of disparities with respect to insurance status in these injuries. Replantations occur more frequently at high-volume hospitals and are more common in younger patients with private insurance. This finding suggests that patients with traumatic amputations may benefit from treatment at high-volume institutions. Further research to help improve access to such institutions is warranted.

Prognostic II.