Facts about Wrist radiocarpal joint
- 09
A synovial joint of the condyloid type, the radiocarpal joint is formed by the distal end of the radius articulating with the scaphoid, lunate, and triquetrum bones.
- 08
Lunotriquetral ligament injuries account for approximately 25 percent of wrist radiocarpal joint instabilities and often go undiagnosed on initial radiographs.
- 07
Flexor carpi radialis and flexor carpi ulnaris muscles provide dynamic stability to the radiocarpal joint during forceful gripping activities exceeding 50 pounds of pressure.
- 06
Dorsal radiocarpal ligaments provide primary stability to the wrist radiocarpal joint and resist volar displacement of the carpus during extension movements.
- 05
In 1912, anatomist Henry Gray documented that the radiocarpal joint receives blood supply from branches of the radial and ulnar arteries that form anastomotic networks around the wrist capsule.
- 04
Scaphoid fractures account for approximately 60 percent of all carpal bone injuries affecting the wrist radiocarpal joint complex.
- 03
Ulnar deviation reaches approximately 30 degrees at the wrist radiocarpal joint, while radial deviation achieves only 20 degrees due to the styloid process of the radius limiting lateral movement.
- 02
The radiocarpal joint's articular surface area spans approximately 5 to 6 square centimeters, making it one of the body's most frequently used condyloid joints.
- 01
Approximately 65 degrees of flexion and 70 degrees of extension occur at the wrist radiocarpal joint during normal daily activities.