Os Triquetrum (Noun)
Meaning
A wrist bone that articulates with the pisiform and hamate and lunate bones.
Classification
Nouns denoting body parts.
Examples
- The triquetrum is one of the carpal bones that provides additional stability to the wrist during pronation and supination movements.
- Radiographs confirmed that the os triquetrum bone in the wrist had sustained a small avulsion fracture due to a severe twisting motion.
- As one of the bones of the proximal carpal row, the os triquetrum facilitates flexion, extension, abduction, and adduction at the wrist.
- Excessive use or trauma may lead to dislocation of the os triquetrum from the hamate bone or disruption of its relationship with the pisiform and lunate.
- It's known that avascular necrosis rarely occurs in the wrist but most frequently in the os triquetrum when such incidents arise.