Time to Amputation After Traumatic Digital Injury Does Not Affect Complication Rates: A Retrospective Multi-Institutional Analysis.

Abstract

Background: Revisionary digital amputations are often performed after partial or full traumatic digital amputation to minimize complications while preserving as much length and functionality as possible. Many surgeons attempt revisionary procedures swiftly after initial injury. The aim of this study was to investigate the effects of time from injury to surgery on rate of complications and reoperation in revisionary traumatic digital amputations.

Methods: This was a retrospective chart review of all patients undergoing revisionary digital amputation for initial traumatic amputation at a single hospital from January 1, 2007 to December 31, 2021. Demographics, comorbidities, surgical details, complications, and time from injury to surgery were collected. Five-factor modified fragility index scores were also computed for each patient. Primary outcomes of interest included complications and need for additional procedures. Secondary outcomes of interest included development of neuroma, phantom limb, and referral to a long-term pain specialist.

Results: A total of 97 patients were identified as meeting all inclusion criteria. The average time to surgery was 14.4 days. Body mass index, comorbidities, and time to surgery were not associated with increased risk of complication. Increasing time to surgery was not significantly associated with increased risk of complications, development of neuroma, phantom limb, or a referral to long-term pain service. The only factors which were significantly associated with reoperation were absence of diabetes and hypertension.

Conclusion: Increasing time to surgery after initial injury was not significantly associated with increased risk of complications or reoperation. Surgeons should consider this when assessing urgency of surgery in patients after traumatic digital amputation.