The radio carpal joint, also known as the wrist joint, is an ellipsoid synovial joint formed by the proximal row of carpal bones attaching to the distal end of the radius and articular disk. It is stabilized by four ligaments that prevent excessive displacement and ensure the hand follows the movements of the forearm. The radio carpal joint allows for flexion, extension, adduction, and abduction movements of the wrist. Common injuries to this joint include scaphoid fractures from axial compression or hyperextension and lunate dislocations resulting from high impact injuries.

1. RADIO CARPAL JOINT
By:
Hariom Singhani
Somesh Saurabh
Sonu Verma
Suraj Mahulikar
A Project on

2. Introduction
Also called as Wrist Joint.
An Ellipsoid & Synovial joint.
BONES:
 Formed by proximal row of Carpal bones-
Scaphoid, Lunate and Triquetrum and
distal end of radius, and articular disk.
 Carpal bones form a convex surface which
attaches to the concave surface of radius
and articular disk by tendons.

3. Ligaments-
Fours ligaments
1.Palmar Radiocarpal- on palmar(anterior) side of hand
-increases stability & it ensures that hand follows
forearm during supination.
2.Dorsal Radiocarpal- on dorsum(posterior)side of hand
-increases stability & ensures that hand follows
forearm during pronation.
3.Ulnar Collateral- Runs from ulna to triquetrum and pisiform
-prevents excessive lateral joint displacement.
4.Radial Collateral-Runs from radius to scaphoid and trapezium
-prevents excessive lateral joint displacement.
Movements-
1.Flexion
2.Extension
3.Adduction
4.Abduction

4. 1.Scaphoid Fracture
-direct axial compression or hyperextension
of wrist
-diagnosed as pain or swelling at the base
of thumb
-occurs commonly in young males and athletes.
Injuries-
2.Lunate Dislocation
-Due to fall from a height or and
automobile collision
-lunate bone get dislocated
-swelling, pain and limited motion of wrist
and hand.