Fractures
Fractures to the first metacarpal bone account for 30-40% of all hand fractures and 25% of all metacarpal fractures (second to fractures to the fifth metacarpal bone). 80% of fractures to the first metacarpal occur at its base.
Common fractures to the thumb metacarpal include Bennett's fracture and Rolando's fracture.
Read more about this topic: First Metacarpal Bone