The triquetrum bone is a small, pyramidal-shaped bone located on the medial (inner) side of your wrist.
Anatomy and Location
Its name, derived from the Latin word "triquetrus" meaning "three-cornered," accurately describes its shape. It's one of eight carpal bones forming the wrist joint. You can find it nestled between the lunate bone and the pisiform bone.
- Shape: Pyramidal (three-sided)
- Location: Medial side of the wrist
- Adjacent Bones: Lunate and pisiform bones
Sometimes, it's also referred to as the triquetral bone, triangular bone, or cuneiform bone. These alternative names all reflect its distinctive triangular shape.
Clinical Significance
While relatively small, the triquetrum plays a crucial role in wrist stability and movement. Injuries to this bone, such as fractures or dislocations, can cause significant pain and limitations in wrist function.
