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TECHNICAL OF PIVOT POINT SELECTION FOR RETROGRADE LATERAL SUPRAMALLEOLAR FLAP
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Abstract
Background: Retrograde lateral supramalleolar flap is used to cover soft tissue defects at the ankle and foot. There is no article that suggests the pivot point of this flap to support clinical surgeons in designing the flap preoperative aim to estimate this option's feasibility. Objectives: Determining the pivot point based on the anastomosis between the descending branch with the anterolateral malleolar artery and the anastomosis between the anterolateral malleolar artery and the anterior tibia artery. Materials and methods: 24 fresh amputated legs. Case series study. This research was conducted from Jan 2020 to Dec 2022 at the microsurgery laboratory of Hospital for Traumatology and Orthopedic, Ho Chi Minh City. Gathered information about the location of anastomosis points and the total length of the flap. Results: There has been the existence of vessel anastomosis to supply retrograde blood flow to the lateral supra malleolar flap. The mean total length of a flap from the anastomosis point between the descending branch with anterolateral malleolar artery was 19.5 cm, from the anastomosis point between the anterolateral malleolar artery with the anterior tibia artery was 21.9 cm. Conclusion: Retrograde lateral supramalleolar flap is nourished by the anastomosis between the descending branch with anterolateral artery and anterolateral artery with anterior tibia artery. The maximum total length of a flap is 30 cm, as the pivot point is based on the anastomosis of the anterolateral malleolar artery with the anterior tibia artery.
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Keywords
Lateral supramalleolar flap, descending branch, anterolateral malleolar artery
References
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