Relationship Between Flap Surgery for Amputated Fingers, Injury Level, and Injury Pattern

Abstract

　We investigated the relationship between flap surgery techniques for amputated fingers and the corresponding injury level and injury pattern. A total of 150 fingers treated with flap surgery between 2019 and 2024 were retrospectively analyzed. The oblique triangular flap was the most frequently used technique (68%) , applied across all injury patterns in Tamai zonesⅠtoⅢ. In contrast, in zonesⅢto V, cases commonly involved heat press injuries, degloving injuries, and avulsion amputations. For these severe soft tissue injuries, pedicle groin flaps were preferred due to their suitability. Accurate assessment of injury level and pattern is critical for selecting the most appropriate flap surgery and optimizing treatment outcomes.