Volume 38 Issue 7
Jul.  2022
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Wang CD,Wang A,Sun JL,et al.Clinical effects of free peroneal artery perforator flaps in repairing forefoot skin and soft tissue defect wounds assisted with three-dimensional computed tomography angiography[J].Chin J Burns Wounds,2022,38(7):661-666.DOI: 10.3760/cma.j.cn501120-20210914-00317.
Citation: Wang CD,Wang A,Sun JL,et al.Clinical effects of free peroneal artery perforator flaps in repairing forefoot skin and soft tissue defect wounds assisted with three-dimensional computed tomography angiography[J].Chin J Burns Wounds,2022,38(7):661-666.DOI: 10.3760/cma.j.cn501120-20210914-00317.

Clinical effects of free peroneal artery perforator flaps in repairing forefoot skin and soft tissue defect wounds assisted with three-dimensional computed tomography angiography

doi: 10.3760/cma.j.cn501120-20210914-00317
Funds:

Scientific Research Program of Health Commission of Weifang City wfwsjk_2019_145

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  • Corresponding author: Wang Jianguo, Email: wjg3389@126.com
  • Received Date: 2021-09-14
  •   Objective  To investigate the clinical effects of free peroneal artery perforator flaps in repairing forefoot skin and soft tissue defect wounds assisted with three-dimensional computed tomography angiography (3D-CTA).  Methods  A retrospective observational study was conducted. From March 2017 to September 2019, 15 patients with skin and soft tissue defect wounds in the forefoot were treated in the Department of Burn and Plastic Surgery of Yidu Central Hospital of Weifang, including 12 males and 3 females, with age of 18-60 years. The wound area on admission was 3.0 cm×3.0 cm-9.0 cm×8.0 cm. The 3D-CTA examination before operation was performed to select the peroneal artery perforating vessels with appropriate length of vascular pedicle and good blood perfusion. According to the wound area and the perforating vessels of the peroneal artery located by 3D-CTA, the peroneal artery perforator flaps of 3.5 cm×3.5 cm-9.5 cm×8.5 cm carried with lateral sural cutaneous nerve was designed and cut, and the nerve was anastomosed with the nerve of the wound. The wound in the donor site of the flap was directly sutured or covered with medium-thickness skin graft from the thigh. The consistencies of type, diameter, and perforating position of perforating vessel of the peroneal artery detected by 3D-CTA before the operation with those of the actual measurement during operation were observed. The length of time for flap cutting and the survival of the flap after operation were recorded. During follow-up of 12 months after the operation, the patients were instructed to evaluate the foot function according to the Maryland foot function score standard, and the wound healing in the donor area and the occurrence of complications affecting the motor function of limb were observed. Data were statistically analyzed with paired sample t test.  Results  The types of peroneal artery perforating vessels in patients measured during the operation were septocutaneous perforator of 12 cases, musculocutaneous perforator of 2 cases, and musculomuscular septal perforator of 1 case, which were consistent with those measured by preoperative 3D-CTA. The diameter of the peroneal artery perforating vessel measured by preoperative 3D-CTA was (1.38±0.17) mm, which was close to (1.40±0.19) mm measured during the operation (t=0.30, P>0.05). The horizontal distance from the starting point of the perforating vessel to the outer edge of the shank was (42±6) mm, and the vertical distance from the starting point of the perforating vessel to the level of the lateral ankle tip was (219±14) mm measured by preoperative 3D-CTA, which were respectively close to (43±6) and (221±15) mm of intraoperative measurement (with t values of 0.46 and 0.38, respectively, P>0.05). The length of time for cutting flap was (31±6) min. All flaps survived post operation without vascular crisis. During follow-up of 12 months after the operation, the foot function was evaluated as excellent in 11 cases, good in 3 cases, and fair in 1 case, the donor site wound healed well, the scar was not noticeable with no contracture, and the motor function of joints was not affected.  Conclusions  Free peroneal artery perforator flap is one of the effective methods to reconstruct skin and soft tissue defect wounds in the forefoot, and the risk of surgery can be reduced when the anatomical location of the perforating vessels is confirmed by 3D-CTA.

     

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