Pisohamate ligament

Pisohamate Ligament

The Pisohamate Ligament is a small fibrous band in the human hand that connects the pisiform bone to the hamate bone. It is one of the several ligaments that contribute to the complex structure of the wrist and hand.

Etymology

The term "Pisohamate" is derived from the names of the two bones it connects: the pisiform and the hamate. The pisiform bone is a small bone found in the proximal row of the carpus (wrist bones), while the hamate bone is a wedge-shaped bone in the distal row of the carpus.

Anatomy

The Pisohamate Ligament is located in the wrist, specifically in the carpus, which is the eight small bones that make up the wrist. It extends from the pisiform bone, a small bone that is part of the ulnar side of the wrist, to the hamate bone, which is found on the same side of the wrist.

Function

The Pisohamate Ligament plays a crucial role in maintaining the stability of the wrist. It helps to keep the pisiform and hamate bones in place, preventing them from moving excessively or dislocating. This ligament also contributes to the overall strength and flexibility of the hand.

Clinical Significance

Injury to the Pisohamate Ligament can lead to pain, swelling, and limited movement in the wrist and hand. It can also result in carpal instability, a condition where the small bones in the wrist are not properly aligned. Treatment for Pisohamate Ligament injuries typically involves rest, immobilization, and physical therapy. In severe cases, surgery may be required.

Related Terms

• Carpus
• Pisiform bone
• Hamate bone
• Ulnar
• Carpal instability

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