Pisohamate ligament: Difference between revisions

Latest revision as of 05:51, 16 February 2025

Pisohamate Ligament[edit]

The pisohamate ligament is a fibrous band in the human wrist that plays a crucial role in the stability and function of the hand. It connects the pisiform bone to the hamate bone, specifically to the hook of the hamate, and is part of the complex network of ligaments that support the carpal bones.

Anatomy[edit]

The pisohamate ligament is located on the ulnar side of the wrist. It is a continuation of the flexor carpi ulnaris tendon, which inserts into the pisiform bone. From the pisiform, the ligament extends to the hook of the hamate, forming a strong connection between these two carpal bones.

Structure[edit]

The ligament is composed of dense regular connective tissue, which provides it with the strength and flexibility needed to withstand the mechanical forces exerted during wrist movements. The pisohamate ligament is part of the ulnar canal (also known as Guyon's canal), through which the ulnar nerve and ulnar artery pass.

Function[edit]

The primary function of the pisohamate ligament is to stabilize the pisiform and hamate bones, contributing to the overall stability of the ulnar side of the wrist. It also plays a role in the transmission of forces from the forearm to the hand, particularly during gripping and lifting activities.

Clinical Significance[edit]

Injuries to the pisohamate ligament can occur due to trauma or overuse, leading to pain and dysfunction in the wrist. Such injuries may be associated with conditions like ulnar tunnel syndrome, where compression of the ulnar nerve occurs within Guyon's canal. Diagnosis of pisohamate ligament injuries often involves clinical examination and imaging studies such as MRI or ultrasound.

Related Pages[edit]

@@ Line 1: / Line 1: @@
-'''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.
+[[File:Ligamentumpisohamatum.png|thumb|right|Illustration of the Pisohamate Ligament]]
-==Etymology==
+The '''pisohamate ligament''' is a fibrous band in the human wrist that plays a crucial role in the stability and function of the hand. It connects the [[pisiform bone]] to the [[hamate bone]], specifically to the hook of the hamate, and is part of the complex network of ligaments that support the [[carpal bones]].
-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==
+== 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 is located on the ulnar side of the wrist. It is a continuation of the [[flexor carpi ulnaris]] tendon, which inserts into the pisiform bone. From the pisiform, the ligament extends to the hook of the hamate, forming a strong connection between these two carpal bones.
-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==
+=== Structure ===
-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.
+The ligament is composed of dense regular connective tissue, which provides it with the strength and flexibility needed to withstand the mechanical forces exerted during wrist movements. The pisohamate ligament is part of the [[ulnar canal]] (also known as Guyon's canal), through which the [[ulnar nerve]] and [[ulnar artery]] pass.
+=== Function ===
+The primary function of the pisohamate ligament is to stabilize the pisiform and hamate bones, contributing to the overall stability of the ulnar side of the wrist. It also plays a role in the transmission of forces from the forearm to the hand, particularly during gripping and lifting activities.
+== Clinical Significance ==
+Injuries to the pisohamate ligament can occur due to trauma or overuse, leading to pain and dysfunction in the wrist. Such injuries may be associated with conditions like [[ulnar tunnel syndrome]], where compression of the ulnar nerve occurs within Guyon's canal. Diagnosis of pisohamate ligament injuries often involves clinical examination and imaging studies such as [[MRI]] or [[ultrasound]].
+== Related Pages ==
-==Related Terms==
-* [[Carpus]]
 * [[Pisiform bone]]
 * [[Hamate bone]]
-* [[Ulnar]]
+* [[Flexor carpi ulnaris]]
-* [[Carpal instability]]
+* [[Ulnar nerve]]
+* [[Ulnar tunnel syndrome]]
-[[Category:Anatomy]]
-[[Category:Hand]]
-[[Category:Ligaments]]
-{{stub}}
+[[Category:Ligaments of the upper limb]]