[Rotation myoplasty using the sternocleidomastoid muscle, together with hemimandibulectomy].

Rotation myoplasty using the sternomastoid muscle in association with hemi-mandibulectomy would appear to be of value for two reasons:--functional, strengthening the wall of the buccal cavity and providing a contour capable of containing the prosthesis, following fibrous transformation of the muscle,--plastic, restoring the aesthetic symmetry of the lower half of the face.