Anatomical study on arteries of fasciae in the forearm fasciocutaneous flap.

The arteries of the forearm flap were studied systematically and quantitatively to determine the survival mechanism of fasciocutaneous flaps and provide morphological basis for clinical application. Fourteen forearms from fresh adult cadavers were investigated by methods of dissection under operating and biological microscopes, tissue clearing, tissue sectioning, and image analysis. There were four arterial types in the forearm flaps in which the intermuscular space cutaneous artery was predominant in number. Both intermuscular space cutaneous arteries and intermuscular septal cutaneous arteries anastomosed by branches as arterial chains along the intermuscular spaces and septa where the stem arteries ran through. Arteries of each type gave off epi- and subfascial branches to the deep fascia, and the former were greater in number and larger in diameter. In the same way, the vascular network was thicker in the epifascial level than that in the subfascial level. The percentage of the area of blood vessels in deep fascia (Aa%) was larger than that of the superficial fascia. In the forearm, the deep fascial vasculature is the main pathway through which the fasciocutaneous flap gains its blood supply, and the epifascial vascular network is especially important. It would be better to select the fascial pedicle where the arterial chain exists.

[Clinical application study of intraoral high-level mandibular neurotomy: Reported of 19 cases]

Trigeminal neuralgia is a common disease in clinical practice. The recurrence rate after avulsion is relatively high. In order to reduce the recurrence rate, the author developed a new method and operated on 19 cases with intraoral high level trigeminal neurotomy based on 21 cases of adult human skull anatomy. The method is simple, safe and in good condition. The author emphasized that the proper management of the buccal branch during operation may have a close relation with the post-operative recurrence rate.