Meng Zhong-hua, Zhang Kai, Chen Shi-wen, Chen Yong-feng, Wang Xiao-min, Wang Jun-ju
Department of Oral and Maxillofacial Surgery of the Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China.
Zhonghua Zheng Xing Wai Ke Za Zhi. 2010 Nov;26(6):448-52.
To study the anatomy of mandibular bone flap pedicled with temporal muscle for midfacial bone defects.
The shape and blood supply of the temporal muscle and mandibular ramus, as well as their relationship, were observed and measured in 30 sides of adult head specimens.
The temporal muscle has a fan-shaped main portion, then is scattered into three bundles as anterolateral, anteromedial, posterior bundles, which end respectively at anterior border of ramus, the temporal ridge and posterior portion of coronoid process. Then the muscle goes downward until it reaches the distal side of the third medial surface molar and attaches the 3/4 of medial surface of anterior portion of ramus. The blood supply of temporal muscle includes the medial temporal artery with external diameter of (0.76 +/- 0.20) mm, the anterior deep temporal arteries with external diameter of (0.79 +/- 0.21) mm, posterior deep temporal arteries with external diameter of (0.98 +/- 0.64) mm, the accessory deep temporal artery formed by many little branches. The anterior part of ramus is supplied by the periosteal arteries and the bony perforator of the deep temporal arteries. Rectangular ramus of mandible was divided into anterior portion and posterior portion by the line linking the lowest point of mandibular notch, mandibular foramen and mandibular canal. Anterior portion can supply a bone flap with a size of (46.67 +/- 6.85) mm x (17.98 +/- 2.64) mm x (11.49 +/- 0.99) mm.
The mandibular bone flap pedicled with temporal muscle has a reliable blood supply and abundant bone volume. It is feasible to design a mandibular bone flap pedicled with temporal muscle for midfacial bone defect.
研究颞肌蒂下颌骨瓣修复面中部骨缺损的解剖学特点。
在30侧成人头部标本上观察并测量颞肌、下颌支的形态、血供及其相互关系。
颞肌主要部分呈扇形，然后分散为前外侧束、前内侧束、后束3束，分别止于下颌支前缘、颞嵴和冠突后部。然后肌肉向下走行，直至到达第三磨牙近中面远中侧，附着于下颌支前部内侧面的3/4处。颞肌血供包括外径为（0.76±0.20）mm的颞中动脉、外径为（0.79±0.21）mm的颞深前动脉、外径为（0.98±0.64）mm的颞深后动脉以及由许多小分支形成的颞深副动脉。下颌支前部由骨膜动脉和颞深动脉的骨穿支供血。下颌骨矩形支以连接下颌切迹最低点、下颌孔和下颌管的线分为前部和后部。前部可提供大小为（46.67±6.85）mm×（17.98±2.64）mm×（11.49±0.99）mm的骨瓣。
颞肌蒂下颌骨瓣血供可靠，骨量丰富。设计颞肌蒂下颌骨瓣修复面中部骨缺损是可行的。
