阴囊皮肤多源性血供系统应用解剖学研究

目的探讨阴囊皮肤血供模式，明确可能的阴囊皮瓣供区。方法对10具(20侧)成年男尸阴囊皮肤进行解剖学研究。结果阴囊前动脉来自阴部外浅动脉，于阴茎根部侧方分成内、外侧支，分布于阴囊前外侧皮肤，内侧支口径为(0.54±0.34)mm和(0.69±0.09)mm；来自闭孔动脉前皮支的阴囊外侧动脉出现率为85％，外径(0.62±0.19)mm]分布于阴囊外侧中1/3区皮肤；阴囊后动脉于阴囊后极处，分成阴囊后动脉外侧支与阴囊中隔动脉，前者外径(0.8±0.1)mm]分布于阴囊后外侧区皮肤，后者外径(0.9±0.2)mm]分布于阴囊中隔及阴囊中缝侧方皮肤。结论上述4组血管均在阴囊肉膜层内走行，其终末支血管相互吻合，在每一侧阴囊形成一个较为完整的动脉网络，由此提出4种类型的阴囊皮瓣切取方式，其他类型的阴囊皮瓣是上述阴囊皮瓣切取方式的变化形式。

Anatomic study of the circular blood supply system of the scrotal skin

Objective To investigate the pattern of blood supply of scrotal skin and define the potential flap donor sites of it. Method Scrotal skin dissection was performed on 10 cadavers(20sides). All afferent and efferent vessels were measured and recorded. Results Anterior scrotal artery coming from superficial external pudendal arteries is divided into medial and lateral branches at lateral penile base and spread out on lateral and anterior surface of scrotum. Diameter of internal branches are(0.54±0.34)mm and (0.69±0.09)mm. Lateral scrotal artery(100% present rate, 0.62±0.19mm in diameter)originating from obturator artery distributes to lateral side of scrotum.Posterior scrotal artery is separated into lateral branches and septal scrotal artery at posterior scrotal ploe. The former(0.8±0.1mm in diameter)spreads to lateral and posterior region of scrotum. The latter(0.9±0.2mm in diameter)runs outside when reaching scrotal dartos in scrotal raphe and spreads out in scrotal septal skin. Conclusions The arteries mentioned above all run in the scrotal dartos and its terminal branches anastomose with each other to form a integrated circular blood supply system of scrotal skin. Four different types for socrtal skin flap elevation have been then posed.