Simultaneous dislocation of the scaphoid and hamate bones

Axial-Radial-Ulnar Carpal Dislocation with Divergent Intermetacarpal Dislocations, Peritrapezoid and Scaphotrapezial Dislocations: A Case Report

We report a patient with a severe axial-radial-ulnar (ARU) fracture dislocation of the carpus, involving multiple intermetacarpal dislocations as well as divergent carpometacarpal dislocations involving the index, long, ring and small fingers and peritrapezoid and scaphotrapezial dislocations. She also had a degloving injury involving the dorsal hand. Emergent debridement followed by open reduction and internal fixation of all injuries was performed, followed by soft tissue management. At 6-year follow-up, the patient had adequate active range of motion with the ability to make a full fist and was able to use her wrist and hand for most activities of daily living. Disabilities of the arm, shoulder and hand (DASH) score was 47.5. Michigan hand outcomes questionnaire (MHQ) score was 66.8. Mayo wrist score was 65. Patient-rated wrist evaluation (PRWE) score was 42. Severe ARU fracture dislocations of the carpus can result in adequate functional recovery on long-term follow-up. Level of Evidence: Level V (Therapeutic).

Isolated scaphoid dislocation: A case report and review of literature

BACKGROUND

Isolated dislocations of the scaphoid are extremely rare types of injuries, commonly associated with severe ligament disruptions, and are occasionally misdiagnosed. Treatment options for dislocations of the scaphoid mainly include closed reduction, with or without internal fixation, and open reduction with ligament repair.

CASE SUMMARY

A 59-year-old male worker sustained a twisting trauma of his right wrist, caused by a moving belt while he was operating a machine. When he presented at our emergency department, the patient complained of swelling, tenderness, and restriction of movement of the right wrist. Radiographs confirmed a primary complex partial radial dislocation of the scaphoid and some chip fractures of the capitate and hamate. Closed reduction with K-wire internal fixation was performed with the assistance of arthroscopy, and an excellent prognosis was achieved.

CONCLUSION

Arthroscopy-assisted reduction is a minimally invasive method to reduce the dislocated scaphoid and maintain the blood supply.

Palmar scaphoid dislocation associated with dorsal perilunate dislocation: case report

Most dislocations of the carpal bones present as a lunate or perilunate dislocation. We report a case of a palmar scaphoid dislocation combined with a dorsal perilunate dislocation.

Combined reverse perilunate and axial-ulnar dislocation of the wrist: a case report

A 31 year-old professional motorcycle racer had an accident, resulting in an axial-ulnar dislocation of his right dominant wrist with derangement of the trapeziocapitate joint and dorsal dislocation of the capitate together with the triquetrum, the hamate and the corresponding metacarpals. Open reduction and wire fixation obtained excellent functional results at 1 year. This pattern of carpal derangement has not been previously described in the literature.

Complex carpal dissociation with open, complete, and divergent trapezium, capitate, and hamate dislocation: a case report

We report a patient with a unique complex carpal dissociation involving complete and divergent dislocation of the hamate, capitate, and trapezium with total ligamentous disruption of the distal carpal row and midcarpal joint, associated with a transverse shaft fracture of the fifth metacarpal. The mechanism of injury was a sustained torsional force resulting in a simultaneous distraction and bidirectional dorsopalmar (ulnar)-palmodorsal (radial) crushing force at the carpus.

Isolated scaphoid dislocation associated with axial carpal dissociation: an unusual injury report

We present a report of a patient with an isolated scaphoid dislocation associated with a hyperextension and axial loading injury of the carpus required a careful and extensive clinical and radiographic evaluation leading to surgical intervention to reduce and stabilize the scaphoid and to reduce and hold internally the axial carpal injury. Knowledge of the anatomy and the potential injury patterns of the carpus will aid the hand surgeon with injury recognition and proper treatment.