Secondary toicollis may develop as a result of all the following except: (A) Skin scarring usually following burns, (B) Veebral injuries, (C) Prolapsed interveebral disc, (D) Sacroiliitis
Answer is D. Other causes of secondary toicolis are tuberculosis, pyogenic infection, ankylosing spondylitis, osteoid osteoma, intraspinal tumours, intracranial tumours of the posterior fossa etc.