M66.4: Spontaneous rupture of other tendons

Spontaneous rupture of other tendons is a medical condition characterized by the sudden and unexpected tearing of a tendon, which is a type of strong, fibrous tissue that connects muscle to bone. Tendons located throughout the body could be affected, excluding the Achilles tendon which rupture is classified separately. The rupture often happens without any obvious injury, and is usually linked to certain activities that put stress on the tendon, like lifting a heavy object or making a sudden, forceful movement. Symptoms of a spontaneous tendon rupture may include a sharp, sudden pain in the affected area, inability to move the joint normally, and swelling or bruising. The condition typically progresses over time, potentially leading to difficulties in using the affected limb or joint, making day-to-day activities challenging. The human musculoskeletal system - muscles, bones, and joints - is primarily affected by this condition.