retrocollis

retrocollis

 [ret″ro-kol´is] spasmodic torticollis in which the head is drawn back.

ret·ro·col·lic spasm

(ret'rō-kol'ik spazm) Torticollis in which the spasm affects the posterior neck muscles.
Synonym(s): retrocollis.

retrocollis

(re?trö-kol'is) [ retro- + collum] Torticollis with spasms affecting the posterior neck muscles. Synonym: retrocollic spasm