Incidence and characteristics of physical disabilities in patients with postconcussion syndromefollowing mTBI

This study aimed to examine the incidence and characteristics of physical disabilities in patients with postconcussion syndrome (PCS) after a mild traumatic brain injury (mTBI). Of 203 patients diagnosed with PCS after mTBI, 10 patients with definite physical disabilities (worse than moderate disability on the Glasgow outcome scale [GOS], <4 points and inability to walk independently on the Functional Ambulation Category [FAC], <3 points) were enrolled. Ten of the 203 patients included in the analysis based on prespecified inclusion criteria were further evaluated. Seven patients had moderate disability on the GOS, whereas the remaining 3 showed severe disability. On the Modified Barthel Index, 5 patients were moderately dependent, and 2 patients were severely dependent. By the Motricity Index, 9 patients showed mild quadriparesis, and 1 had mild hemiparesis. All 10 patients could grasp-release their fingers as per the Modified Brunnstrom Classification. By contrast, 7 patients required verbal supervision for independent gait by the FAC, and the remaining 3 patients needed intermittent support from 1 person for independent gait. Approximately 5% of patients with PCS after mTBI had a definite physical disability, and most of these patients showed mild quadriparesis. These results suggest that a definite physical disability can occur in patients with PCS after mTBI.