The Zygorbicular Dissection in Composite Rhytidectomy: An Ideal Midface Plane

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Composite rhytidectomy added the repositioning of the orbicularis oculi muscle to the deep plane face lift to achieve a more harmonious appearance of the face by adding periorbital rejuvenation. By not separating the orbicularis oculi from the zygomaticus minor and by extending the dissection under medial portions of the zygomaticus major and minor muscles, a more significant improvement in composite rhytidectomy can now be achieved. A thin nonrestrictive mesentery between the deep plane face lift dissection and the zygorbicular dissection still allows vertical movement of the composite face lift flap without interrupting the intimate relationship between the platysma, cheek fat, and orbicularis oculi muscle. This modification eliminates the occasional prolonged edema and occasional temporary dystonia previously observed. It allows the continuation of the use of the arcus marginalis release, which has also been modified by resetting the septum orbitale over the orbital rim. These two modifications allow a more predictable and impressive result. They reinforce the concept of periorbital rejuvenation as an integral part of facial rejuvenation, which not only produces a more harmonious immediate result but prevents the possible unfavorable sequelae of conventional rhytidectomy and lower blepharoplasty. (Plast. Reconstr. Surg. 102: 1646, 1998.)

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