A triscaphe joint, also known as the scaphotrapeziotrapezoid (STT) joint, is a joint in the wrist located between the scaphoid, trapezium, and trapezoid bones.
In more detail:
- Location: The triscaphe joint is found within the carpal bones of the wrist.
- Bones Involved: It's formed by the articulation of three carpal bones:
- Scaphoid: A boat-shaped bone on the thumb side of the wrist.
- Trapezium: One of the four bones in the distal row of the carpus, located on the thumb side.
- Trapezoid: Another bone in the distal carpal row, situated next to the trapezium.
- Formal Name: The formal anatomical term for this joint is the scaphotrapeziotrapezoid (STT) joint.
- Clinical Significance: This joint can be a site of arthritis, often resulting from trauma. Triscaphe arthritis can cause pain and limited range of motion in the wrist.
Therefore, the triscaphe joint is an important functional component of the wrist, facilitating complex hand movements.
