Surgical therapeutics and operative technique . h is so active in this region. 1. Ligature in the Hypoglosso-Hyoid Triangle—Operation—First Stage.—A horizontal incision of 5 centimetres in length in the submaxillary region,at equal distances from the hyoid bone and the lower border of the inferiormaxilla. Second Stage.—Incision of the superficial cervical aponeurosis, andexposure of the submaxillary gland. which is raised with a ring forceps.In the depth of the wound we notice the tendon of the digastric fixed to thehyoid bone by a fibrous expansion; and above it the hypoglossal nerve, alongwh
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Surgical therapeutics and operative technique . h is so active in this region. 1. Ligature in the Hypoglosso-Hyoid Triangle—Operation—First Stage.—A horizontal incision of 5 centimetres in length in the submaxillary region, at equal distances from the hyoid bone and the lower border of the inferiormaxilla. Second Stage.—Incision of the superficial cervical aponeurosis, andexposure of the submaxillary gland. which is raised with a ring forceps.In the depth of the wound we notice the tendon of the digastric fixed to thehyoid bone by a fibrous expansion; and above it the hypoglossal nerve, alongwhich run the superficial lingual veins. The distance between the hj^po- OPERATIONS ON THE HEAD 149 glossal nerve and the tendon of the digastric muscle is variable enough.We should take care to recognize, first, the tendon of the digastric, and thenthe nerve as it is about to disappear beneath the mylohyoid muscle. Wethen expose in the hypoglosso-hyoid triangle the fibres of the hyoglossusmuscle, which are directed upwards and forwards.. Fig. 261.—^Ligature of Lingual Artery in the Hypoglosso-Hyoid Triangle. Second, stage of the operation. Third Stage : Exposure of the Artery.—The tendon of the digastric isdrawn downwards with a retractor, and we grasp with clawed forceps thefibres of the hyoglossus muscle, which are then incised in a direction