Cai Xiao-yan, Li Zhi-ming, Xu Yang-bin, Cheng Gang, Luo Peng
Department of Burn and Plastic Surgery, the First People's Hospital of Shunde , Southern Medical University, Foshan 528300, China.
Zhonghua Zheng Xing Wai Ke Za Zhi. 2009 Nov;25(6):456-9.
To explore the anatomical features of supratrochlear artery which is related to the blood supply of paramedian frontal flap in nasal reconstruction.
10 adult head specimens (20 sides) were used for observation of the course, layer and anastomosis of the supratrochlear artery. The horizontal line of supraorbital rim and the frontal middle line were used as X and Y axis to locate the position of supratrochlear artery.
Supratrochlear artery is directed medially and upward after it gets out from orbit. Some arteries (9/20) have one sharp bend at the beginning. The frontal muscle penetration point of the artery is (15.2 +/- 2.6) mm above the X axis and (12. 1 +/- 1 .4) nun lateral to the Y axis. The artery goes subcutaneously after muscle penetration point. It goes more superficially and is anastomosed to the supraorbital artery and frontal branches of the superficial temporal artery at the same side, and also the contra-lateral supratrochlear artery.
The pedicle of the paramedian frontal flap should not be too narrow. The dissection of the pedicle should not be too near to the artery, so as to protect the bend at the beginning. The flap elevation must be performed beneath the frontal muscle, when it is 2-3 cm above the supraorbital rim.
探讨滑车上动脉的解剖学特点，及其与鼻再造正中旁额部皮瓣血供的关系。
采用10例成人头部标本（20侧），观察滑车上动脉的走行、层次及吻合情况。以眶上缘水平线及额部中线为X、Y轴，确定滑车上动脉的位置。
滑车上动脉出眶后向内上方走行，部分动脉（9/20）起始处有一明显弯曲。动脉穿额肌点位于X轴上方（15.2±2.6）mm，Y轴外侧（12.1±1.4）mm。动脉穿肌点后走行于皮下，位置较浅，与同侧眶上动脉及颞浅动脉额支吻合，也与对侧滑车上动脉吻合。
正中旁额部皮瓣的蒂部不宜过窄。蒂部解剖时不宜过于靠近动脉，以保护起始处的弯曲。皮瓣掀起应在眶上缘上方2～3cm处，在额肌深面进行。
