Abstract
V-Y flap is widely used in plastic surgery as an important technique for reconstructing deformities and improving appearance. In this paper, a geometrical parameter model and finite element analysis were used to study the rationale of the proposed V-Y flap design and the preoperative evaluation of the V-Y flap design. First, a geometric parameter model of the V-Y flap was established to analyze the five key geometric relationships affecting the flap structure and obtain a reasonable plan for the V-Y flap design through the crossing constraint relationship. Second, in order to verify the effectiveness of the V-Y flap design, the suture and release states of the V-Y flap during surgery were evaluated based on a simulation model of the V-Y flap generated by finite element analysis software. The results revealed that the approach proposed in this paper provides a feasible method for clinical V-Y flap design.
Highlights
As a barrier between the body and the external environment, human skin has an important role in protecting our body, regulating body temperature and sensing external stimuli
Geometric Model of V-Y Flap. e typical preoperative marking and suturing of a V-Y flap are displayed in Figures 1(a) and 1(b), respectively, and the corresponding geometric V-Y flap model was established as shown in Figure 2. e black dotted circle shows the tumor incision area and the area enclosed by the BC arc, and lines AB and AC represent the local flap. e curve enclosed by the B′C′ arc and lines A′B′ and A′C′ denotes the advancement position of the flap transplant
Considering the actual surgical process of ap advancement, this study focused on the two corresponding states, suturing and release: (1) Suturing: clinically, after the ap is advanced to a certain position before suturing, an arti cial external load is applied to the defect skin edge and the ap. erefore, the edges of the defect and ap are stretched and deformed
Summary
As a barrier between the body and the external environment, human skin has an important role in protecting our body, regulating body temperature and sensing external stimuli. Flaps are widely used in skin and plastic surgery because they can repair and reconstruct damaged skin [1,2,3,4]. E V-Y flap, which consists of an island-like skin with subcutaneous tissue connected to it, has been widely utilized in clinical trials as a local flap. In this approach, no rotation or deformation occurs during surgery and the site remains smooth [5,6]. The design and preoperative evaluation of the V-Y flap surgical approach currently rely entirely on the doctor’s experience. If the flap is not properly designed, it generally leads to dysfunction
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