Author's abstract: This paper discusses the case of a 46 year old male suffering from spasmodic dysphonia, a chronic disorder involving hyperadduction of the vocal mechanism and resultant vocal arrest. Attention is paid to the innervation of the intrinsic laryngeal musculature and postulated mechanisms of irritation, which may be amenable to chiropractic. At the time, the patient went to the chiropractor he had been suffering from this condition for six months and had consulted with numerous specialists and two teaching hospitals with no improvement in his condition. The chiropractor learned that upper cervical pain and stiff-ness and suboccipital headache appeared along with the vocal problem. After two weeks of upper cervical adjustments (5 visits) patient' the condition cleared up.
Wood KW. J Manipulative Physiol Ther. 1991 (Jul-Aug); 14 (6): 376-378