Abstract
To evaluate the reliability and utility of preoperative perforator planning using computed tomography angiography (CTA) in anterolateral thigh perforator flap (ALTPF) transplantation. Thirty-two consecutive patients who underwent extremity reconstruction using the ALTPF were retrospectively reviewed from 2008 to 2012. These patients were divided into two groups. In group I (n = 16), suitable perforators were designed based on four criteria using CTA. These were used for the operation and compared with the intraoperative findings. In group II (n = 16), all patients underwent operation using conventional methods without preoperative perforator planning. The surgical results of all patients were evaluated for flap complications, alteration of the donor site, donor site morbidity, and the incidence of reoperation. In group I, there were no statistically significant differences between the parameters, including the calibre and location of the origin (perpendicular and horizontal distance from the origin of the perforator to both the superior lateral border of the patella and the lateral region of the thigh) of all planning perforators and the operative measurement results (p-values were 0.3, 0.422, and 0.129, respectively). The types were consistent with the operative findings; the rate of the septocutaneous type was 31.25% (5/16), and the rate of the musculocutaneous type was 68.75% (11/16). The use of preoperative perforator planning in group I was associated with a significant reduction in flap complications (p = 0.009) compared with group II. There was no difference between the two groups in alteration of the donor site, donor site morbidity, or the incidence of reoperation (p-values were 0.225, 0.225, and 0.33, respectively). Preoperative perforator planning using CTA in ALTPF transplantation is a reliable and useful method resulting in safer operation with optimal outcome.
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