Syndesmosis

Syndesmosis is a type of joint that allows for little or no movement. It is a fibrous joint where the two adjacent bones are linked by a strong membrane or ligaments. This type of joint is found between bones that need to be firmly connected but also need to have some degree of flexibility.

Anatomy

The term syndesmosis is derived from the Greek words "syn" meaning together, and "desmos" meaning ligament. In the human body, syndesmosis is found between the two bones of the lower leg, the tibia and fibula. This is known as the tibiofibular syndesmosis. Other examples of syndesmosis include the connection between the ulna and radius in the forearm, and between the pubic bones in the pelvis.

Function

The main function of a syndesmosis is to provide stability while allowing some degree of flexibility. In the case of the tibiofibular syndesmosis, it allows for slight movement of the fibula relative to the tibia, which is necessary for normal walking and running.

Clinical significance

Injuries to the syndesmosis are relatively common, especially in athletes. These injuries, known as syndesmotic sprains or "high ankle sprains", can be caused by excessive outward twisting of the foot. They are often more serious than typical ankle sprains and require a longer recovery time.

Treatment

Treatment for syndesmotic injuries typically involves rest, ice, compression, and elevation (RICE). In more severe cases, surgery may be required to repair the damaged ligaments and stabilize the joint.

See also

• Fibrous joint
• Tibia
• Fibula

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Syndesmosis

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