Which of the following symptoms indicates a third degree sprain?

A third-degree sprain is characterized by a complete tear of the ligament, which leads to significant dysfunction in the affected joint. This type of injury presents with symptoms such as an evident loss of stability in the joint, severe pain, and tenderness at the injury site. As the ligament is completely torn, the joint may be unable to support the body’s weight or perform normal movements, indicating a critical loss of function.

The presence of significant swelling or bruising may accompany the injury, but the primary indicator is the complete loss of function and the resulting tenderness. Recognizing these symptoms is essential for proper assessment and treatment, which may involve referral for imaging studies or surgical evaluation depending on the severity of the injury and the patient's functional needs.