Application of the suture embedding ligation delayed technique by ligaturing blood vessels in facial wound repair with ex-pansion skin flaps of the cervical cutaneous branch of transverse cervical artery
Objective To investigate the time-delay method of embedding and ligating of the vessels around the expanded skin flap with the cutaneous branch of the transverse carotid artery and improve the overall survival rate of the flap.Methods From March 2012 to December 2021,a total of 14 patients with facial scars,giant facial nevus,facial hemangioma,and facial trauma were treated in our hospital.In Phase I,according to the conditions of facial raw surface,the size and shape of the cutaneous branch flap of the transverse carotid artery were designed,the appropriate expander was selected and embedded,and the skin was expanded with water injection as planned.4 weeks before the transposition of the flap,the flaps were placed on the dilated flap with a flashlight to show the blood supply,and the flaps except the transverse carotid artery were ligated by embedding suture around the dilated sac to supply blood vessels.After the ligation delay of 4 weeks,the facial lesion was removed and the skin flap was removed and transpositioned to repair the wound.Results All 14 patients survived after flap transposition,except 1 case with slightly delayed healing at the distal edge,and none had necrosis.The overall survival rate of the flap was 100％,the patient satisfaction rate was 92.9％.Conclusion The suture embedding ligation delay technique is simple,easy to operate,less invasive,the overall survival rate of the expanded transverse carotid artery flap is high,and patient satisfaction is high,which is worthy of clinical application.
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