Wrist Pain - Radial and Ulnar Collateral Ligament Injuries
By Ben Benjamin
The wrist is a frequently injured joint. The complex structure of this joint enables it to perform numerous diverse movements. The wrist contains many small bones and ligaments, which hold the bones together. The true wrist joint consists of the union of the two long bones of the forearm, the radius and the ulna, with the first row of small wrist bones.
The radius and ulna rotate around one another. The small bones of the wrist are each shaped differently, and they fit together like a jigsaw puzzle in two rows of four bones each. The row closest to the fingertips is referred to as the distal row, and the row nearest to the forearm is called the proximal row. These bones are held to one another and to the radius and ulna by an intricate network of ligaments. The ligaments provide stability while allowing movements among the individual wrist bones and between the wrist and arm bones.
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