Syndesmosis Joints: Definition, Examples & Function

A syndesmoses joint is a fibrous joint in which bones are connected by interosseous ligaments. The ligaments can be formed by aponeuroses from muscles or deep fascia that envelop both bones involved in the articulation. Some examples of syndesmoses joints include:

- The interosseous membrane of the forearm connecting the radius and ulna

- The interosseous ligaments of the leg, between the tibia and fibula.

- The sacroiliac ligaments, connecting the sacrum and ilium

Syndesmoses joints typically allow only slight movement or none at all and provide added stability and strength to the skeletal structure. It should also be noted that the tibiofibular joints consist of both syndesmoses and synovial components for joint flexibility when required during certain movements.