“…6 Another problem is inadvertent injury to the PIN when dissecting and ligating the PIA near its origin ( Figure 9). 8,19,20 The PIA chain-link perforator flap ( Figure 10) has some advantages in common with the traditional reverse PIA flap (Figure 9), such as good texture, simple operation, ease of survival, and no need for sacrificing the main vessels, 5,8,9,15,16,29 but it also has some unique features. First, it reduces operation time.…”