Operative treatment of bilateral retrocollis.

A surgical method for bilateral retrocollis (BR) is presented: Selective resection of specific posterior cervical muscles for the treatment of bilateral retrocollis is described. The operative procedure includes partial resection of the upper part of the trapezius, part of the splenius muscles of both sides, part of the semispinalis capitis and semispinalis cervicis muscles of both sides. 15 cases were treated surgically during 1980-1989. Postoperative follow up (3-10 years) showed that the abnormal movements were abolished completely or for the greater part in 13 patients (87%) while preserving the normal posture and mobility.