[Transtrapezoid carpal dislocation: a case report].

Fracture dislocations of the STT joint are extremely rare. We present the case of a 50-year-old worker, who sustained a crush injury of his left hand with a dorsal fracture dislocation of the trapezoid bone and the associated second metacarpal bone at the STT, and a concomitant compartment syndrome of the hand. The fracture was reduced immediately and compartment release was performed, followed by percutaneous stabilisation using three K-wires. Material removal after six weeks was followed by intensive physical therapy. At the final follow-up examination after three months, we observed a good recovery of hand function compared to the unaffected right side with 75 % grip strength, 90 % ROM in extension/flexion and full thumb opposition (Kapandji score 9/10). Immediate surgical treatment of this rare injury can lead to a good functional result of the hand.