Operative surgery . ration.—An angular or crescent-shaped incision is carriedalong the base of the lower jaw (Fig. 739, b) extending between the anteriorborders of the masseter muscles, avoiding the facial arteries. A verticalincision is then made from the center of this to the median line of thehyoid bone. The flaps are reflected, the mucous membrane, the attachmentsof the lingual, hyoid, and digastric muscles divided from the inner surfaceof the lower jaw, and the tongue is freed laterally from the anterior pillarsas in other methods. The tongue is then drawn through the opening andsevered b
Operative surgery . ration.—An angular or crescent-shaped incision is carriedalong the base of the lower jaw (Fig. 739, b) extending between the anteriorborders of the masseter muscles, avoiding the facial arteries. A verticalincision is then made from the center of this to the median line of thehyoid bone. The flaps are reflected, the mucous membrane, the attachmentsof the lingual, hyoid, and digastric muscles divided from the inner surfaceof the lower jaw, and the tongue is freed laterally from the anterior pillarsas in other methods. The tongue is then drawn through the opening andsevered by the knife or scissors, the bleeding points being secured as fast asthey appear. The Haps are united, the wound is drained, and the remainingraw surfaces are allowed to heal by granulation. Billroth made a somewhat curved submental incision (Fig. 739, c) only,and extended it at either side so as to permit ligature of the lingual arteriesand removal of the infected glandsbefore extirpation of the tongue ()..
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