This relieves pressure on the newly formed wrist joint of the pisiform, hamate and capitate.
It connects with the pisiform, hamate, and lunate bones.
The fourth and fifth metacarpals are connected to the hamate.
The fourth metacarpal is connected to the capitate and hamate, and the fifth metacarpal is connected to the hamate.
In the latter condition the joint between the hamate and the fourth and fifth metacarpal bones has a separate synovial membrane.
The formation of these centers roughly follows a chronological spiral pattern starting in the capitate and hamate during the first year of life.
The hook of hamate is particularly prone to fracture-related complications such as non-union due to its tenuous blood supply.
The lunate also articulates on its distal and medial surface with the hamate bone.
