Current concepts of the anatomy of the thumb trapeziometacarpal joint.
review · Level V
Where this comes from
- Record sourced from PubMed, PMID 21193137.
- Also identified by DOI 10.1016/j.jhsa.2010.10.029.
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Abstract
This review article describes the anatomy of the thumb trapeziometacarpal joint. In the final phase of opposition screw home torque rotation of the volar beak of the thumb metacarpal in the pivot area of the trapezium recess and tension on the dorsal ligament complex create stability for power pinch and power grip. The resulting compressive shear forces can lead over time to trapeziometacarpal joint osteoarthritis.
Medical subject headings
- Carpometacarpal Joints
- Finger Joint
- Thumb
Anatomy
- hand