eMedicine Specialties > Orthopedic Surgery > Hand & Upper Extremity
Wrist Arthrodesis: Workup
Updated: Jun 25, 2008
Workup
Laboratory Studies
- Prealbumin results should be greater than 18 for normal wound healing.
- Absolute lymphocyte count should be greater than 1500 for normal wound healing.
Imaging Studies
- Radiography
- The standard 3 views of the wrist should identify the intracarpal and intercarpal joints with arthrosis. Radiographs should be examined for loss of joint intervals, subchondral reactive bone formation, subchondral cysts, and osteophyte formation. Particular attention should be paid to joints that are not going to be fused, such as the distal radioulnar joint and the thumb, index, ring, and small finger carpal-metacarpal joints. Pain from arthropathy in these joints is not affected by fusion and can lead to suboptimal outcome. Contralateral wrist radiography can be used to assess ulnar variance of the pathologic side. Standard radiography with 3 views of the wrist (ie, anteroposterior, lateral, and oblique) is necessary to determine which, and to what extent each, of the carpal articulations is involved.
- Scaphoid view radiography should be obtained to determine whether an occult nonunion of the scaphoid exists.
- The clenched-fist view stresses the intercarpal ligaments and may reveal an incompetent scapholunate ligament. Failure to address this problem at operation results in the failure of a scaphotrapezoid-trapezial (STT) fusion.
- CT scanning of the wrist: On the rare occasion that plain radiography appears to be inadequate to identify all of the bony pathology accurately, CT scanning of the wrist can be helpful by exposing malalignment of bony columns and underlying arthropathy.
More on Wrist Arthrodesis |
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Workup: Wrist Arthrodesis |
| Treatment: Wrist Arthrodesis |
| Follow-up: Wrist Arthrodesis |
| Multimedia: Wrist Arthrodesis |
| References |
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References
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Further Reading
Keywords
wrist fusion, limited intercarpal arthrodesis, limited intercarpal fusion, subtotal arthrodesis, arthropathy of the wrist, wrist joint arthritis, bone-on-bone contact between the carpal bones and the distal radius, bony consolidation, midcarpal fusion
Workup: Wrist Arthrodesis