A blow to the face, neck or head can result in an injury to the brain which can cause the rabbit to have a head tilt. Trauma even could result from a panic reaction. Depending upon the severity of the trauma, an anti-inflammatory might be helpful to speed recovery. In adults, acute torticollis can be caused by many different conditions. Occasionally, no specific cause is found. Trauma to the neck or spine can lead to torticollis. You can even get torticollis in adults. What Is Torticollis in Adults? Torticollis happens when the neck is tilted to one side. On one side of the neck, the muscles are really tight. On the other side, they are really weak. The main muscle affected is the sternocleidomastoid muscle that runs along the back and side of the neck. There are .