A zygapophyseal joint sprain, also known as a facet joint sprain, occurs when one of the small joints between vertebrae in the spine becomes inflamed or injured. These joints, called zygapophyseal joints, allow for spinal flexibility and movement. When sprained, they can cause significant discomfort, especially in the neck or lower back (1). Symptoms The symptoms of a zygapophyseal joint sprain often resemble other spinal … Continue reading Zygapophyseal joint sprain