METHOD FOR ELIMINATING PARALYSIS OF MIMIC MUSCLES Russian patent published in 2022 - IPC A61B17/00 

FIELD: medicine.

SUBSTANCE: invention relates to medicine, namely, to maxillofacial surgery. A bed for an autologous graft is formed; the masticatory branch of the trigeminal nerve is isolated in the mandibular notch region; a preauricular incision is made on the healthy side, mobilising the skin-fat flap. The buccal branch of the facial nerve is then isolated. An autograft of the sural nerve is then taken and passed using a neural guide from injections on the vestibular surface of the upper lip from the affected side to the healthy side; 0.5 of the diameter of the buccal branch of the facial nerve on the healthy side is dissected. The previously passed autograft of the sural nerve is sutured to the buccal branch of the facial nerve on the healthy side, a skin incision is made on the lesion side along the anterior axillary fold, and the lateral edge of the pectoralis major muscle is visualised. After that, the pectoralis major muscle is lifted and retracted in the medial direction, and the neurovascular bundle of the lateral edge of the pectoralis minor muscle is visualised. Then, the vessels and the nerve are isolated in the proximal direction up to the point of origin from the axillary artery, vein, and medial bundle of the brachial plexus, part of the pectoralis minor muscle is resected from the coracoid scapular process, then the tendinous part of the muscle is sutured to prevent separation thereof. The lower edge of the lateral bundle of the pectoralis minor muscle is taken in holders, sutured 3 cm below the entry of the neurovascular pedicle, and crossed. Cleavage of the pectoralis minor muscle is performed by separating the lateral portion together with the neurovascular bundle from the mid- and medial portions, ligation of the vascular bundle is performed, the medial pectoral nerve is resected in the proximal regions, the flap is resected and transferred to the recipient zone on the face. The edges of the wound of the donor zone are aligned and sutured in layers. The autologous graft of the pectoralis minor muscle is put in the prepared bed in the recipient zone, followed by fixing the costal part of the pectoralis minor muscle in the temporal region and fixing the tendinous part in the oral commissure region.

EFFECT: significant improvement in the aesthetic and functional results, lower injury rate and donor damage, shorter rehabilitation time for the patients.

1 cl, 2 dwg, 1 ex