Determinants of disability after fingertip injuries.

ABSTRACT

BACKGROUND: Psychological factors, such as depression, catastrophic thinking, and self-efficacy, account for more of the variation in upper extremity disability than motion and other impairments, but their influence in the setting of hand trauma is less well studied. OBJECTIVE: The aim of this study was to determine which factors account for variation in disability 1 month after fingertip injuries. METHODS: We enrolled 82 patients with finger injuries distal to the proximal interphalangeal joint, and 70 patients completed the study. Questionnaires and measurements were taken at the initial visit and approximately 1 month later. Patients completed the short version of the Disabilities of the Arm Shoulder and Hand questionnaire, the pain self-efficacy questionnaire, and the Patient Health Questionnaire to assess depressive symptoms. Bivariate and multivariable analyses determined factors associated with QuickDASH scores. RESULTS: The mean disabilities of the arm shoulder and hand questionnaire score was 35 at the initial visit (the U.S. norm is 10) and 17 approximately 1 month later. The best model explained 54% of the variation in disabilities of the arm shoulder and hand questionnaire 1 month after injury and included symptoms of depression (Patient Health Questionnaire; partial R2 0.43) and injury mechanism (saw injury compared with sport injury; partial R2 0.14). The criterion symptoms of depression was also the factor most strongly associated with both pain intensity and time off work. CONCLUSIONS: In patients with fingertip injury, symptoms of depression account for most of the variability in hand and arm-specific disability, pain intensity, and days to return to work. Identification and treatment of symptoms of depression might facilitate recovery from fingertip injuries.