Short scar facelift

Published on 22/05/2015 by admin

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Last modified 22/04/2025

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CHAPTER 9 Short scar facelift

History

The short scar facelift with lateral SMASectomy was developed out of a demand from younger female patients (aged mostly in their forties) who sought facial rejuvenation but were adamantly opposed to any scarring behind the ears. These patients objected to the posterior hairline distortion, hypertrophic scars, and hypopigmentation that they often observed in their friends or mothers who had undergone facelifts. They were embarrassed to wear their hair up or in a ponytail.

My first experience with short scar facelift occurred in 1990, when I operated on a young woman who had submental and submandibular fat and early jowling, but good cervical skin elasticity. I performed lipoplasty of the neck and jowls with wide subcutaneous undermining in the face, detaching the malar and masseterocutaneous ligaments. A pure skin lift was done with no retroauricular scars. The result was excellent, and this experience prompted me to adopt this procedure for all my younger patients with similar anatomic features.

In 1992 I began to incorporate the lateral SMASectomy technique to the facelift operation for women in their forties. I noticed that vertical elevation of the face had a beneficial effect on the cervical skin. Lax cervical skin was tightened because the soft tissues of the face and neck are linked anatomically. Between 1990 and 1998 I performed this operation, which had no retroauricular scars, on a total of 204 young female patients. The results were “ponytail friendly” for these young, active women.

Physical evaluation

See Figs 9.19.8.

Technical steps

Skin flap elevation

All skin flap undermining is carried out under direct vision with scissors dissection to minimize trauma to the subdermal plexus and preserve a significant layer of subcutaneous fat on the undersurface of the flap. I prefer subcutaneous dissection in the temporal region because the skin seems to redrape better. I believe that hair loss results primarily from tension rather than superficial undermining. Subcutaneous dissection in the temporal region must be performed carefully to avoid penetrating the superficial temporal fascia that protects the frontal branch of the facial nerve. All dermal attachments between the orbicularis oculi muscle and the skin are separated up to the lateral canthus (Fig. 9.10).

Dissection extends across the zygoma to release the zygomatic ligaments but stops several centimeters short of the nasolabial fold. I have never felt that further dissection provides significant benefits; on the contrary, the only result is increased bleeding. In the cheek, dissection releases the masseteric-cutaneous ligaments and, if necessary, the mandibular ligaments.

Subcutaneous dissection continues over the angle of the mandible and sternocleidomastoid for 5 to 6 centimeters into the neck. This exposes the posterior half of the platysma muscle. If a submental incision has been made, the facial and lateral neck dissection is connected through-and-through to the submental dissection.

Lateral SMASectomy including platysma resection

In the SMAS-platysma resection, the level of the resection is superficial to the parotid masseteric fascia that overlies the facial nerve branches. The outline of the SMASectomy is marked on a tangent from the lateral malar eminence to the angle of the mandible, essentially in the region along the anterior edge of the parotid gland. In most patients this involves a line of resection extending from the lateral aspect of the malar eminence toward the tail of the parotid gland. Frequently, orbicularis oculi muscle fibers are exposed at the superior limit of the excision. Usually a 2 to 4 centimeter segment of superficial fascia is excised, depending on the degree of SMAS-platysma laxity.

In SMAS resection, I like to pick up the superficial fascia in the region of the tail of the parotid, extending the resection from inferolateral to supero-medial in a controlled fashion. When SMAS resection is being performed, it is important to keep the dissection superficial to the deep fascia and avoid dissection into the parotid parenchyma. Note that the size of the parotid gland varies from patient to patient; consequently, the amount of protection for the underlying facial nerve branches will also vary. Despite this, as long as the dissection is carried superficial to the deep facial fascia, ensuring that only the superficial fascia is resected, facial nerve injury as well as parotid gland injury will be prevented. In essence, this is a resection of the superficial fascia in the same plane of dissection as one would normally raise a SMAS flap.

Vectors

The following vectors are illustrated: (1) vectors of elevation of the SMAS-platysma and (2) vectors of superolateral elevation of the SMAS-platysma and medial approximation of the anterior platysma in the submental area above the hyoid bone. The various vectors accomplish corrections of the anterior neck, the cervicomental angle, the jowls, and the nasolabial fold. The first key suture grasps the platysma at the angle of the mandible and advances it in a posterosuperior direction; it is secured with figure-of-eight 2-0 Maxon sutures (Davis & Geck, Danbury, CT) to the fixed lateral SMAS overlying the parotid gland. This lifts the cervical platysma and cervical skin, helps to define the jawline, and improves contouring in the submandibular region.

The lines of closure of the lateral SMAS-platysma in the cheek and the lateral neck and medial platysma approximation in the submental area are depicted. Excess fat in the mastoid and submandibular areas is removed by liposuction. After SMAS resection, interrupted 3-0 PDS buried sutures are used to close the SMASectomy; the fixed lateral SMAS is evenly sutured to the more mobile anterior superficial fascia. Vectors are perpendicular to the nasolabial fold. The last suture lifts the malar fat pad, securing it to the malar fascia. It is important to obtain a secure fixation to prevent postoperative dehiscence and relapse of the facial contour (Figs 9.12 and 9.13).

Skin closure, temporal fascia and earlobe dog-ears

After SMAS and platysma approximation, some tethering of the skin might appear at the anterior extent of the subcutaneous dissection because of the pull of the underlying SMAS. This can also occur in the lower eyelid with elevation of the malar fat pad. Further subcutaneous undermining is necessary to free these tethers, allowing the skin to redrape.

The first key skin suture rotates the facial flap vertically and posteriorly to lift the midface, jowls, and submandibular skin. Suture fixation is at the level of the insertion of the superior helix. I like to use a buried 3-0 PDS through the temporal fascia with a generous bite of dermis on the skin flap. Closure is under minimal to moderate tension. Staples are used to close any incisions in the hair. A wedge is usually removed at the level of the sideburn to preserve the hairline. If an anterior hairline incision has been made, I like to close it with buried 5-0 Monocryl sutures (Ethicon, Inc.) and 5-0 Nylon sutures. Extra time and attention must be spent on this closure to eliminate any dog-ears and obtain the finest scar.

Excess skin is then trimmed from the facial flap so that there is no tension on the preauricular closure. Wound edges should be “kissing” without sutures. Trimming at the earlobe must also be without tension, and the skin flap is tucked under the lobe with 4-0 PDS sutures, taking a bite of earlobe dermis, cheek flap dermis, and conchal perichondrium to minimize tension. A small dog-ear might be present behind the earlobe; this is easily trimmed and tailored into a short incision in the retroauricular sulcus. A closed suction drain is usually brought out through a separate stab in the retroauricular sulcus (Fig. 9.14).

Complications of the short scar facelift