Grade 3 hamstring strain is characterized by which of the following?

Grade 3 hamstring strain is characterized by which of the following?

• A. Diffuse swelling and bleeding
• B. Palpable mass of muscle tissue at tear site
• C. Extreme difficulty walking
• D. Complete tear of the muscle

Answer: (D)

Grade 3 hamstring strain is defined by a complete tear of the muscle fibers, resulting in a full-thickness rupture. The defining sign is a disruption of the muscle continuity that often creates a palpable defect where the muscle has torn and a rapid loss of strength and function. This level of injury typically produces substantial swelling and bruising, and many patients cannot bear weight or walk normally immediately after the injury, reflecting the severe loss of muscle integrity. While other signs like diffuse swelling or a hematoma can occur with strains, they are not specific to a complete tear. A palpable mass at the tear site might be due to a hematoma or swelling but does not capture the critical feature of a full rupture, and extreme difficulty walking can happen with severe strains but again is not as defining as the actual complete tear of the muscle.

Grade 3 hamstring strain is defined by a complete tear of the muscle fibers, resulting in a full-thickness rupture. The defining sign is a disruption of the muscle continuity that often creates a palpable defect where the muscle has torn and a rapid loss of strength and function. This level of injury typically produces substantial swelling and bruising, and many patients cannot bear weight or walk normally immediately after the injury, reflecting the severe loss of muscle integrity. While other signs like diffuse swelling or a hematoma can occur with strains, they are not specific to a complete tear. A palpable mass at the tear site might be due to a hematoma or swelling but does not capture the critical feature of a full rupture, and extreme difficulty walking can happen with severe strains but again is not as defining as the actual complete tear of the muscle.