Radial collateral ligament of wrist joint

Radial collateral ligament of wrist joint

Ligaments of the wrist. Anterior view. (Radial collateral ligament not labeled, but visible at left.)
Latin	ligamentum collaterale carpi radiale

The radial collateral ligament of the wrist joint is a key ligament that provides lateral stability to the wrist. It is one of the several ligaments that support the complex structure of the wrist, allowing for a wide range of motion while maintaining joint stability.

Anatomy

The radial collateral ligament is located on the lateral side of the wrist. It originates from the distal end of the radius, which is one of the two bones of the forearm. The ligament then extends distally to attach to the scaphoid and the trapezium, two of the carpal bones in the wrist.

Function

The primary function of the radial collateral ligament is to stabilize the wrist joint by preventing excessive lateral movement. It acts as a check against ulnar deviation, which is the movement of the wrist towards the ulna or the medial side of the forearm. This ligament, along with other ligaments of the wrist, helps maintain the alignment of the carpal bones and supports the wrist during various activities.

Clinical Significance

Injuries to the radial collateral ligament can occur due to trauma, such as falls or direct impacts to the wrist. Such injuries may result in pain, swelling, and instability of the wrist joint. Diagnosis is typically made through physical examination and imaging studies such as X-rays or MRI. Treatment may involve rest, immobilization, physical therapy, or in severe cases, surgical intervention.

Also see

• Ulnar collateral ligament of wrist joint
• Scaphoid fracture
• Wrist joint
• Carpal bones