以Hand Injury Severity Scoring System預測受傷後之手功能

Abstract

Purpose Hand strength is one of key components in human hand function. To evaluate post-injury hand functions, we conduct this study to assess the predictability of HISS (Hand Injury Severity Scoring) system to hand functions after a period of recovery. Methods In this retrospective study, eighty hand injured subjects were recruited. Hand strength tests measured by dynamometers were performed by subjects in ways of palmar pinch, lateral pinch and palmar grasp. Hand dexterity tests assessed by MMDT and Purdue pegboard tests. The logistic regression models were used to evaluate the risk of poor hand strength/dexterity among the severities represented by HISS scores. Results A negative correlation exists between the differences of the strength of two hands, and the severity shown by HISS system in the poorer half of subjects. The risk to be in poorer half of palmar pinch subtest is significant in severe/major subgroup of HISS severity. The risk to be in poorer half of palmar grasp subtest is significant in severe/major subgroup of HISS severity. The risk to be in poorer half of palmar pinch and palmar grasp subtests is significant in skeletal component of HISS system. No statistical significance is shown between HISS scores and MMDT/Purdue pegboard tests. Conclusions HISS is a descriptive severity scoring system to hand injury and also a useful instrument to predict functional outcome. This study revealed the low HISS scores may predict poor post-injury hand strength after adequate recovery.