Can a seatbelt cause a shoulder injury in a car accident?
Yes. The seatbelt is the most common cause of shoulder injury in a frontal car accident. The diagonal restraint loads the shoulder, collarbone, and AC joint with hundreds of pounds of force during impact, frequently causing AC joint sprains, clavicle contusion, rotator cuff strain, and soft-tissue bruising along the seatbelt path. The injury is real even when no fracture appears on X-ray.