Trans-styloid, trans-hamate dorsal lunate dislocation: A case report

Lunate dislocation is a rare and serious injury, frequently due to high-energy trauma such as a fall from height or a motor vehicle accident. Lunate dislocation is usually in the volar direction; however, dorsal dislocation of the lunate is extremely rare.

We report a case of 55-year-old male who sustained a high-energy trauma; he was hit by a car while crossing the street. The patient was referred to department of Plastic Surgery for left wrist dorsal dislocation of the lunate and bilateral multiple carpal bone fractures. He was managed by open reduction and internal fixation with scapholunate ligament repair for the left wrist, while the right wrist was treated conservatively.

Such cases must be treated urgently to avoid complications such as avascular necrosis of the lunate, median nerve injury, complex regional pain syndrome, and chronic carpal instability.

This case is one of few cases reported in the literature highlighting the rarity of this injury pattern.