Applied Anatomy of Ligaments of Trapeziometacarpal Joint: A Cadaveric Study
Cao Thi, Nguyen Chi Nguyen, Nguyen Van Huy, Tran Huu Thanh

Background: There are some current controversies in anatomy of ligaments of trapeziometacarpal joint. Understanding the anatomy of the ligaments of trapeziometacarpal joint is essential for anatomical reconstruction of these ligaments. Objective: To identify and describe the anatomical characteristics of ligaments of trapeziometacarpal joint. Materials and methods: Dissection of 30 hands from 15 fresh-frozen cadavers. Results: Five principal ligaments of trapeziometacarpal joint were identified. One volar ligament: anterior oblique ligament; three dorsal deltoid-shaped ligaments: dorsal radial, dorsal central, posterior oblique; and one ulnar ligaments: intermetacarpal. Dimensions of ligaments, of origin and insertion footprints were calipered. Conclusions: There are two systems of ligament at trapeziometacarpal joint: AOL on volar aspect and DRL, DCL and POL on dorsal aspect. In which, DCL is the strongest.

Full Text: PDF     DOI: 10.15640/ijmp.v6n1a1