Determinants of disability after fingertip injuries

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.

The aim of this study was to determine which factors account for variation in disability 1 month after fingertip injuries.

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.

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.

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.