Shoulder impingement. This injury can happen from the force of an airbag colliding with a person’s shoulder. Over time, tendinitis may develop, preventing the victim from performing daily activities such as lifting their arms up to put on a shirt. Rotator cuff surgery may be required to repair the damage.nTorn anterior cruciate ligament (ACL). This type of knee injury is common in car accidents, especially in rollovers or rear-end collisions. Over time, the knee may swell, resulting in severe pain. An MRI can confirm the diagnosis of a torn ACL.nMedial collateral ligament (MCL) tear. This type of injury happens when the knee is bent in an unnatural position during a car accident. Swelling and stiffness can develop, resulting in a loss of stability when a person attempts to walk.