Anatomy and Biomechanics of the Thumb Carpometacarpal Joint.
review · Level V
Where this comes from
- Record sourced from PubMed, PMID 35465931.
- Also identified by DOI 10.1016/j.hcl.2021.11.001.
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Abstract
This review discusses the anatomy and biomechanics of the thumb carpometacarpal (CMC) joint. This articulation between the trapezium and first metacarpal is integral for opposition and other complex movements necessary for pinch and grasp maneuvers. Fortunately, this joint is well equipped to handle the extreme forces imposed by these movements, as it is stabilized by an elaborate arrangement of ligaments and muscles. Without this stability, thumb subluxation would occur with loading during pinch and grasp, and human prehension would be impossible. Understanding the interactions occurring within this joint is essential for adequately treating pathology arising in this crucial joint.
Medical subject headings
- Carpometacarpal Joints
- Metacarpal Bones
- Trapezium Bone
Anatomy
- hand
- wrist