Ulnar carpal collateral ligament
(Redirected from Ulnar collateral ligament of wrist joint)
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Latin | ligamentum collaterale carpi ulnare |
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TA98 | |
TA2 | |
FMA | |
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The ulnar carpal collateral ligament is a key ligament located in the wrist, specifically on the ulnar side, which is the side of the wrist closest to the little finger. This ligament plays a crucial role in stabilizing the wrist joint by connecting the ulna to the triquetral bone and the pisiform bone.
Anatomy
The ulnar carpal collateral ligament is a strong band of fibrous tissue. It originates from the styloid process of the ulna, which is a bony projection on the distal end of the ulna. From there, it extends to attach to the triquetral and pisiform bones, which are two of the eight small bones that make up the carpal bones of the wrist.
Function
The primary function of the ulnar carpal collateral ligament is to provide stability to the ulnar side of the wrist joint. It helps to prevent excessive lateral movement of the wrist, which can occur during activities that involve gripping or twisting motions. This ligament is particularly important in maintaining the integrity of the wrist during activities that place stress on the ulnar side, such as racket sports or manual labor.
Clinical Significance
Injuries to the ulnar carpal collateral ligament can occur due to trauma, such as a fall on an outstretched hand, or due to repetitive stress. Such injuries can lead to pain, swelling, and instability in the wrist. Diagnosis of ligament injuries often involves physical examination and imaging studies such as MRI.
Treatment for injuries to this ligament may include rest, immobilization with a splint or brace, physical therapy, and in severe cases, surgical repair.
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