Abstract:

Objective　To provide a three-dimensional (3D) model that reveals detailed architecture of the perforators in the forearm that enables secure elevation of the personal perforator flap for clinic.　Methods Four adult male fresh forearms underwent lead oxide-latex injection. Spiral computed tomographic scanning was then performed and three-dimensional reconstructions were finished using Mimics 13.1. Specimens were then dissected by layers to document the individual perforators. We had accurately measured the number, length, diameter and distance from the ulnar and radial styloid process of perforators by way of providing evidence in support of flaps. Based on perforator region, we had got digital perforator flaps by segmentation of images.    Results    3D reconstructed visualization images could perfectly display the arteries, their perforator and perforator flaps in forearm. The number of radial, ulnar, and posterior interosseous artery perforators were 12～17, 10～15, 5～11 respectively.　Conclusions　As result of origin, course and branches of perforator flaps were constant by way of the study of reconstructed 3D images and measurement data. According to the distribution of perforating posterior interosseous artery, radial and ulnar arteries, we had designed the area of perforator flap. The study could guide operative design and operative procedure.

Key words: Digital medicine, Forearm, Perforator artery, Perforator flaps, 3D reconstruction