Head rotation and forward movement muscle injury

Because the ratings are determined under § 4.56, the evidence most relevant to your rating is whatever shows the nature and extent of the muscle injury and its effect on function. Medical records documenting the original wound or injury, surgical reports, and imaging studies help establish the extent of muscle damage. Physical examination findings are central: a VA or private examiner's notes on muscle strength, range of motion of the head and neck, any signs of muscle wasting or scarring, and findings related to breathing or swallowing difficulties all bear directly on the rating criteria.

Your own statements, and statements from people who know you, describing how the injury affects daily activities, such as turning or lowering your head, eating, speaking, or breathing, can help show functional loss that may not be fully captured in clinical measurements. Records showing how symptoms affect your ability to work, particularly jobs requiring sustained head movement or physical exertion, are also relevant to demonstrating the severity of the condition.