Department of Plastic Surgery, Center for Advanced Medical Education by BK21 Project, Inha University School of Medicine, Incheon, Korea.
Microsurgery. 2010 Nov;30(8):646-8. doi: 10.1002/micr.20819. Epub 2010 Sep 14.
The aim of this study was to elucidate the exact course of the terminal branches of the plantar digital artery (PDA) to the nail bed of the second toe. Thirteen second toes from seven fresh Korean cadavers were dissected (age range 74-92 years, four men and three women). The terminal segmental branches (TSB) branched off from the PDA at 7.6 ± 0.7 mm proximal to the nail fold. The fibro-osseous hiatus branch (FHB) branched off from the PDA at 3.3 ± 0.7 mm from the nail fold. They were 3.8 ± 1.0 mm lateral to the paronychium. Diameters of TSB and FHB were 0.8 ± 0.2 mm and 0.7 ± 0.1 mm, respectively. Diameter of PDA was 1.4 ± 0.2 mm. Surgeons should stay at least 4 mm proximal to the nail fold to avoid injury to the terminal branch. We believe that second toenail with minimum amount of soft tissue may be transferred using FHB-based vascularized toenail flap. Perfusion study and clinical application should be followed.
本研究旨在阐明足底动脉（PDA）终末支至第二趾甲床的确切行程。从 7 具韩国新鲜尸体的 13 个第二趾进行解剖（年龄范围 74-92 岁，4 男 3 女）。终端节段分支（TSB）从距甲襞近端 7.6±0.7mm 处的 PDA 分出。纤维骨裂分支（FHB）从距甲襞 3.3±0.7mm 处从 PDA 分出。它们位于甲沟外侧 3.8±1.0mm 处。TSB 和 FHB 的直径分别为 0.8±0.2mm 和 0.7±0.1mm，PDA 的直径为 1.4±0.2mm。外科医生应至少距甲襞近端 4mm 以避免损伤终末支。我们认为，采用基于 FHB 的带血管化趾甲瓣可转移最小量软组织的第二趾甲。应进行灌注研究和临床应用。
