Collateral Ligaments of the 4th MCP

Proximal/Superior Attachment

• Head of 3rd Metacarpal - Tubercle and Adjacent Depression on the Metacarpal

Distal/Inferior Attachment

• Base of 4th Proximal Phalanx of the Hand - Palmar Aspect of the side

Joints

• 4th Metacarpophalangeal Joint (4th MCP)