We report the case of a 19-year-old male soldier, who sustained stress fractures of the hamate body and fourth metacarpal
base due to his daily knuckle push-up routine in the military. We introduce repetitive microtrauma due to daily knuckle push-ups
as an unusual, but potential trauma mechanism for metacarpal and carpal stress fractures.
Keywords Hamate body fracture - Knuckle push-ups - Stress fracture - Unusual trauma mechanism