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Simultaneous dorsal trapezium-scaphoid and trapezoid-carpal subluxations
1Division of Plastic and Reconstructive Surgery, University of Rochester Medical Center, NY 14642.
The Journal of Hand Surgery
|March 11, 1992
Summary
Rare combined wrist injuries involving the trapezium, scaphoid, trapezoid, and capitate bones are presented. This case required both closed and open treatments for distinct subluxations and dislocations.
Area of Science:
- Orthopedic surgery
- Hand and wrist anatomy
- Traumatology
Background:
- Trapezium-scaphoid-trapezoid (TST) subluxations and trapezoid-capitate-scaphoid-trapezium (TCST) subluxations/dislocations are uncommon wrist injuries.
- Combined injuries of these carpal bones are exceptionally rare in clinical practice.
Observation:
- A unique case involving simultaneous TST subluxations and TCST subluxations/dislocations is described.
- The injury mechanism is hypothesized to involve axial loading of the wrist in either extension or flexion.
Findings:
- The presented case highlights the complexity of combined carpal bone injuries.
- Two distinct treatment modalities, closed reduction and open surgical intervention, were necessary to address the separate TST and TCST injuries.
Implications:
- This case expands the understanding of rare carpal instability patterns.
- It underscores the need for tailored, multi-modal treatment approaches for complex wrist trauma.
- Further research into the biomechanics and management of combined carpal subluxations/dislocations is warranted.