Broken Wrist Anatomy
To better understand wrist fracture, it helps to understand the anatomy of the wrist joint.
The wrist is made of 10 bones: 8 carpal bones and 2 forearm bones. The carpal bones include the scaphoid, lunate, trapezoid, trapezium, hamate, capitate, triquetrum, and pisiform. The forearm bones include the radius and ulna. Ligaments hold the bones together during movement.
Structures of the wrist include:
- Goldfarb CA, Ricci WM, Tull F, Ray D, Borrelli J Jr. Functional outcome after fracture of both bones of the forearm. J Bone Joint Surg Br. 2005 Mar;87(3):374-9. 
- Kelsey JL, Prill MM, Keegan TH, Tanner HE, Bernstein AL, Quesenberry CP Jr, Sidney S. Reducing the risk for distal forearm fracture: preserve bone mass, slow down, and don't fall! Osteoporos Int. 2005 Jun;16(6):681-90. 
- Oskam J, Kingma J, Klasen HJ. Fracture of the distal forearm: epidemiological developments in the period 1971-1995. Injury. 1998 Jun;29(5):353-5.