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SAS Journal of Surgery | Volume-10 | Issue-05
The Use of the Galea Flap for the Reconstruction of Forehead Defects
H. El Kamch, Achraf Brahmi, Anas Mesbahi, J. Hafidi, N. Gharib, A. Abassi, S. Elmazouz
Published: May 10, 2024 | 37 34
DOI: 10.36347/sasjs.2024.v10i05.007
Pages: 556-561
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Abstract
The forehead, a vital anatomical unit of the face, is delimited by the anterior hairline superiorly and by the nasal root, eyebrows, and a horizontal line through the lateral canthus inferiorly. Malignant tumors like basal cell carcinomas frequently afflict this region, necessitating meticulous reconstruction techniques to preserve aesthetics and functionality. This article presents an in-depth exploration of the galea flap graft’s efficacy in addressing tissue defect on the forehead, especially in cases of basal cell carcinomas. The surgical procedure involves a wide excision with a 1 cm safety margin, including the frontal muscle and periosteum, followed by exposing the frontal bone. A meticulous approach is taken in tracing the midline, marking the hairline, and planning the left hemi coronal incision to ensure optimal outcomes. The galea flap, vascularized by branches of the superficial temporal artery, is meticulously lifted and transposed downwards to cover the tissue defect, while ensuring the viability of the flap. Postoperative monitoring reveals no signs of cutaneous or vascular damage, with preserved sensory and motor functions attributed to the preservation of the frontal branch of the facial nerve. The discussion delves into the intricate anatomy of the forehead, emphasizing its vascularization, innvervation, and aesthetic subunits such as the glabella and eyebrows. Various surgical techniques, including direct suturing, directed healing, skin grafts, advancement flaps, and two-stage scalp flaps, are examined in light of their efficacy and limitations in forehead reconstruction. The galea flap emerges as a preferred option due to its reliable vascular supply, ease of lifting, and versatility in covering tissue defects while preserving aesthetics. Future research directions are suggested, focusing on refining surgical techniques to achieve optimal outcomes in forehead tissue reconstruction, balancing esthetic results with functional integrit.