Abstract
The purpose of this study was to measure the relationship between severity of injury and sensibility outcome. This was done by a retrospective study of 37 digital nerve repairs in 26 patients, with a mean follow-up of 35 months. All patients underwent complete hand examination and standard nerve testing, including static and moving two-point discrimination, Semmes-Weinstein monofilaments (SWMF), object recognition, and the pick-up test. A hand injury severity scoring system based on wound characteristics, mechanism of injury, and number of structures involved was then developed. Severity grading led to three classes, and each study group was well matched. Subjectively, all patients considered their outcome as either good or excellent. Objective results are reviewed individually for each test, with the overall combined result of static and moving two-point discrimination being excellent (Highet S4) in 81% for class I, 41% for class II, and 31% for class III, all different at a statistically significant level. We concluded that the severity of injury in the hand can be graded and does have a relationship to the functional end result of digital nerve repair.
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