Visualisation of the pisotriquetral joint through standard portals for arthroscopy of the wrist: a clinical and anatomical study.
Disorders of the pisotriquetral joint are well recognised as the cause of pain on the ulnar side of the wrist. The joint is not usually examined during routine arthroscopy because it is assumed to have a separate joint cavity to the radiocarpal joint, although there is often a connection between the two. We explored this connection during arthroscopy and in fresh-frozen cadaver wrists and found that in about half of the cases the pisotriquetral joint could be visualised through standard wrist portals. Four different types of connection were observed between the radiocarpal joint and the pisotriquetral joint. They ranged from a complete membrane separating the two, to no membrane at all, with various other types of connection in between. We recommend that inspection of the pisotriquetral joint should be a part of the protocol for routine arthroscopy of the wrist. (+info)
Fractures of the scaphoid, capitate and triquetrum in a child: a case report.
Carpal fractures in children are rare, especially with a combination of scaphoid, capitate, and triquetrum fractures. We report one such case in a 10-year-old boy who was successfully treated with Kirschner wires. (+info)
Non-union of the triquetrum with pseudoarthrosis: a case report.
We report a case of symptomatic non-union of the triquetrum with pseudoarthrosis in a 34-year-old man. Motion of the pseudoarthrosis was noted from radial to ulnar deviation. The patient was treated with bone grafting and screw fixation. The non-union healed and the symptoms subsided. The Mayo wrist score had improved from 65 (fair) to 90 (excellent). (+info)
In vivo triquetrum-hamate kinematics through a simulated hammering task wrist motion.
Osteoblastoma of the trapezoid bone and triquetral bone: report of two cases.
Osteoblastoma is a benign local aggressive tumor mostly localized in the vertebra or long bones. Carpal location and recurrence are extremely rare. Treatment options include either curettage or wide en bloc resection which causes functional disability in the hand and wrist and should be reserved only for recurrence. We present a case of recurrent trapezoid osteoblastoma previously treated with curettage of the trapezoid bone and a case of primary triquetral osteoblastoma. (+info)