Background: Auricular reconstruction poses as a unique challenge, auricular defects must be reconstructed so that contours are maintained, symmetry and structural integrity is preserved. Helical defects pose as a reconstructive dilemma because even small alterations in helical contour can be very apparent. Reconstructive options include local cutaneous flaps and two-stage reconstruction. Among the helical rim reconstructive options available, the Antia-Buch chondrocutaneous advancement flap remains a cornerstone technique in plastics and reconstructive surgery. History and Development: The flap was first described in 1967 by Antia and Buch, introduced as a single-stage reconstructive option for full-thickness marginal helical rim defects. The technique is based on the advancement of chondrocutaneous segments – mobilizing cartilage and skin as a composite unit. Prior to this, multi-staged tubed flaps and graft-based reconstructions were more commonly utilized. Modern day adaptations have enabled reconstruction of larger defects through extending posterior skin mobilization and local advancement techniques. Contemporary Applications: The Antia-Buch flap remains particularly suited for reconstruction following excision of non-melanoma skin cancers of the helical rim, such as basal cell and squamous cell carcinoma. Defects up to 2.5-3 cm can be reconstructed reliably in a single stage procedure and under local anesthetic. Advantages include excellent cosmetic result due to colour match and preservation of auricular landmarks and lack of graft/donor site. However, patients may complain of reduction in auricular circumference and notching. Conclusion: After its introduction more than five decades ago, the Antia-Buch flap remains a foundational technique for helical rim reconstruction following ear cancer excision.