How Facial Anatomy Varies — and Why It Matters for Deep Plane Facelift

No two faces are the same. That statement might sound obvious, but when I stand in the operating room and begin dissecting beneath the SMAS, the differences between one patient and the next become profoundly real. The thickness of the tissue, the strength of the retaining ligaments, the depth of fat compartments, the proximity of the facial nerve branches — every variable influences what I do and how I do it. A deep plane facelift is not a single, fixed operation. It is a framework that I adapt to each patient's unique anatomy. In this article, I want to explain how those anatomical variations shape my surgical planning and why understanding them is central to achieving natural, lasting results.

Why does facial anatomy vary between patients?

Facial anatomy is determined by a combination of genetics, ethnicity, lifestyle, and cumulative environmental exposure. When I examine a new patient during a consultation, I am reading the story their face tells — a story written by decades of biological events.

Genetics is the foundation. The underlying skeletal framework, the volume and distribution of facial fat compartments, the inherent thickness of the skin, and the baseline strength of the retaining ligaments are all genetically programmed. Some individuals inherit strong zygomatic projection and a well-defined mandible that supports soft tissue well into their sixties. Others begin with a more convex or flat midface and a less prominent chin, which means gravitational descent becomes visible earlier.

Ethnicity plays a significant role. In my practice in Istanbul, I operate on patients from diverse backgrounds — Turkish, Middle Eastern, European, Central Asian. Patients of Northern European descent tend to have thinner skin with less subcutaneous fat, which ages differently from the thicker, more sebaceous skin common in Mediterranean and Middle Eastern populations. African and East Asian skin often has greater collagen density and elastin resilience, which can delay visible laxity but creates different challenges during dissection. Each ethnic background also presents characteristic fat distribution patterns, from how the malar fat pad is positioned to how prominent the buccal fat pad tends to be.

Then there are lifestyle factors. Sun exposure degrades collagen and elastin in the deep dermis over years, producing what we call solar elastosis — skin that is thin, inelastic, and often covered in fine rhytids. Smoking constricts the microvasculature of the skin, thinning it further and impairing wound healing. Significant weight fluctuations stretch the skin and redistribute fat, sometimes creating isolated pockets of jowl fat while leaving the midface deflated. All of these variables shape the face I see when a patient first walks into my office, and they directly influence how I plan a deep plane facelift.

How does bone structure affect facelift planning?

The facial skeleton is the scaffold upon which every soft tissue structure hangs. When I assess a patient for deep plane surgery, one of the first things I evaluate is the quality of that scaffold.

A patient with a strong, well-projected mandible provides excellent skeletal support for the repositioned SMAS and deep plane flap. The jawline acts as a shelf — once I release the retaining ligaments and redrape the deep tissues, they settle over that shelf and stay there. The result is a clean, defined jawline that looks natural because it follows the underlying bone contour.

In contrast, a patient with a recessed or short mandible presents a different challenge. Without adequate bony projection, the soft tissues have less support. The jowl tends to form earlier in these patients because the mandibular ligament — which tethers the skin to the periosteum along the jawline — is working against gravity with less skeletal reinforcement. When I operate on these patients, I sometimes discuss chin augmentation as a complementary procedure. Even a modest implant can dramatically improve the longevity of a facelift by providing that missing structural support.

Malar projection is equally important. Patients with flat or deficient malar eminences often show early midface descent. The malar fat pad, which sits superficial to the orbicularis oculi in the midface, descends along the face because there is insufficient bony projection to hold it in place. In my deep plane dissection, I extend the release over the malar region specifically to mobilize this fat pad and reposition it back over the cheekbone. But if the cheekbone itself is deficient, I may recommend fat grafting to the malar region to create a more youthful convexity. This is where the concept of a composite approach becomes relevant — addressing not just laxity but also volume.

I also evaluate chin position relative to the lower lip. A retruded chin shifts the entire lower face balance backward, making even mild jowling appear more severe. These are the patients who benefit most from a comprehensive plan rather than a facelift in isolation.

What role does fat distribution play?

Fat is one of the most misunderstood elements of facial aging. Many patients come to me believing their face simply needs to be "tightened." In reality, the problem is often a combination of fat descent, fat atrophy in some compartments, and fat hypertrophy in others. Understanding these patterns is critical for planning a deep plane facelift.

The malar fat pad is a key structure. It sits in the midface, just beneath the skin and above the SMAS layer, and it is one of the first fat compartments to descend with aging. When it slides downward, it deepens the nasolabial fold and creates a tired, hollow appearance in the cheek region. In a deep plane facelift, I release the ligamentous attachments that have allowed this descent and physically reposition the malar fat pad superiorly and laterally — back to where it sat when the patient was younger. This is one of the primary advantages of the deep plane technique over more superficial SMAS procedures: the fat pad moves with the flap because it remains attached to the deeper tissues.

Jowl fat is a separate issue. The jowl forms because fat accumulates below the mandibular ligament while the tissues above it remain relatively tethered. This creates a visible step-off along the jawline. I find it important to distinguish jowl fat from buccal fat. The buccal fat pad is a deep structure that sits within the buccinator space. Some patients have naturally prominent buccal fat, which can contribute to a round or heavy lower face but is anatomically distinct from the superficial fat that creates the jowl. During a deep plane facelift, I address jowl fat through ligament release and tissue repositioning rather than direct fat removal — the goal is to redistribute, not to hollow.

Volume loss is the other side of the equation. As patients age, they lose fat from the temples, the periorbital region, the buccal area, and the lateral cheek. This deflation exaggerates the appearance of sagging because there is simply less volume to fill out the skin envelope. When I see significant volume loss, I incorporate fat grafting into the surgical plan. Harvested fat, carefully processed and injected into the deep planes of the face, restores the three-dimensional fullness that no amount of lifting alone can achieve. The combination of deep plane repositioning with strategic fat grafting — sometimes called a composite approach — yields results that look genuinely rejuvenated rather than simply pulled.

How do retaining ligament variations affect the procedure?

The retaining ligaments of the face are the structures that anchor the skin and SMAS to the underlying bone and deep fascia. They are the reason your face does not simply slide off your skull under the force of gravity. But these ligaments vary enormously from patient to patient, and those variations have direct consequences for how I perform a deep plane facelift.

The key retaining ligaments I encounter during surgery are the zygomatic ligament, the masseteric ligament, the mandibular ligament, and the platysma-auricular ligament. There is also a critical area called McGregor's patch — a condensation of fibrous tissue overlying the parotid gland at the anterior border of the masseter muscle. McGregor's patch is not a single discrete ligament but rather a zone of adhesion, and its density varies considerably between patients.

In some patients, particularly those who age early with deep nasolabial folds and pronounced jowling, I find that the retaining ligaments are inherently weaker. These are the patients whose faces seem to "fall" in their forties, even without excessive sun exposure or weight loss. The zygomatic ligaments in these individuals may be thin and easily released, while the masseteric ligaments are similarly attenuated. For these patients, a deep plane facelift produces dramatic improvement because the tissues are highly mobile once the ligaments are divided.

Other patients — often those with thicker, more fibrous tissue — have remarkably strong retaining ligaments. In these cases, dissection through McGregor's patch requires more careful and deliberate work. The zygomatic ligament can be dense and broad, requiring precise release to allow the malar fat pad to be repositioned without excessive tension. I sometimes encounter patients whose masseteric ligaments are the dominant tethering force, creating a characteristic pattern where the midface ages relatively well but the lower face and jawline deteriorate early.

Understanding which ligaments are dominant in a given patient helps me predict where the most significant release is needed. If the zygomatic ligaments are the primary restraint, the midface will benefit most from the procedure. If the mandibular ligament and masseteric ligaments are dominant, the jawline and jowl correction will be the highlight of the result. In my experience, the most common pattern is a combination — some degree of laxity at all ligament points, but with one or two areas that are particularly affected.

This variability is also why some patients age asymmetrically. The retaining ligaments on one side of the face can be stronger than on the other, leading to uneven descent. During surgery, I often release ligaments to different degrees on each side to achieve symmetry — a nuance that requires careful preoperative assessment and intraoperative judgment.

What about skin thickness and quality?

Skin is the visible envelope of the face, and its properties significantly influence both the surgical approach and the final aesthetic result. When I examine a patient's skin, I am evaluating thickness, elasticity, texture, and the degree of photodamage.

Thin-skinned patients — typically those of Northern European descent, with fair complexions and a history of sun exposure — present a particular set of challenges. Their skin shows every contour irregularity beneath it. If the SMAS repair or deep plane flap has even a subtle ridge or step-off, it may be visible through thin skin. For these patients, I am especially meticulous about creating a smooth, even deep plane flap without bunching or folding. The advantage of thin skin is that it redrapes beautifully; the disadvantage is that it tolerates no imprecision.

Thick-skinned patients have the opposite profile. The skin itself is heavier, which means gravity exerts more force on the underlying soft tissues. Thick skin is also more forgiving of minor irregularities in the deep layers — it camouflages well. However, it is more resistant to redraping and can be more prone to edema in the postoperative period. Patients with thick, sebaceous skin — common in certain Mediterranean and Middle Eastern populations — often retain swelling longer after surgery, and I counsel them to expect a somewhat slower recovery timeline.

Sun-damaged skin has lost much of its elastic recoil. The collagen network is fragmented, the elastin fibers are degraded, and the dermis is often thinner than its age-matched counterparts who avoided excessive UV exposure. In my experience, these patients benefit enormously from a deep plane facelift because the procedure addresses the deeper structural causes of aging rather than relying on skin tension. But they may also need adjunctive treatments — laser resurfacing, chemical peels, or topical retinoids — to improve the quality of the skin envelope itself.

Smoker skin deserves special mention. Chronic nicotine exposure constricts the dermal microvasculature, which thins the skin and impairs its ability to heal. I require all my patients to stop smoking at least four weeks before surgery and six weeks after. Even with cessation, the cumulative damage to the skin's vascular supply affects flap viability. In smokers, I may modify my dissection to leave a thicker subcutaneous layer attached to the skin flap, preserving the subdermal plexus that their compromised skin depends on for survival.

How does the facial nerve position influence technique?

The facial nerve is the structure that every facelift surgeon respects above all others. Injury to any of its five branches — temporal, zygomatic, buccal, marginal mandibular, or cervical — can cause functional and aesthetic deficits ranging from brow ptosis to an inability to smile symmetrically. Understanding how the nerve's position varies between patients is essential to safe deep plane surgery.

The facial nerve exits the skull through the stylomastoid foramen and travels through the parotid gland before dividing into its terminal branches. The most vulnerable branches during facelift surgery are the temporal (frontal) branch, which crosses the zygomatic arch, and the marginal mandibular branch, which courses along the lower border of the mandible.

What many people do not realize is that the deep plane technique is actually designed to protect the facial nerve, not endanger it. In a traditional SMAS plication or SMASectomy, the surgeon works directly on the surface of the SMAS, where the nerve branches emerge. In a deep plane facelift, I dissect beneath the SMAS — the nerve branches travel on the deep surface of this layer or within its substance, which means they are lifted away from me as I work in the sub-SMAS plane. I am essentially working on the other side of the protective barrier that the SMAS provides.

However, the nerve's branching pattern varies between individuals. Some patients have a single temporal branch; others have two or three. The marginal mandibular branch may run well below the inferior border of the mandible in some patients — as much as two centimeters below in the neck — while in others it hugs the bone closely. These variations mean that I must maintain constant anatomical awareness during dissection, particularly around known danger zones.

The area around the zygomatic ligament is one such danger zone. When I release this ligament to mobilize the midface, I am working near where the zygomatic and buccal branches of the facial nerve cross the masseter. My approach here is deliberately cautious — I use direct visualization, stay in the correct plane, and release the ligament incrementally. The masseteric ligament area is similarly sensitive, as the buccal branch often courses nearby.

In my experience, the patients at highest risk for nerve-related complications are not those undergoing deep plane surgery — they are those undergoing aggressive superficial SMAS techniques or poorly planned secondary facelifts where scar tissue has distorted the normal anatomy. The deep plane approach, performed correctly, places the surgeon in what I consider the safest anatomical corridor for facial rejuvenation surgery.

How I adapt the deep plane technique to each patient

Everything I have described above converges during the surgical planning phase. When a patient comes to me for a deep plane facelift consultation, I conduct a systematic assessment that accounts for every anatomical variable.

It begins with standardized photographs — frontal, oblique, and lateral views — taken under consistent lighting. I study these images carefully, noting the degree of midface descent, the depth of the nasolabial fold, the volume and position of the jowl, the definition of the jawline, and the condition of the neck. I evaluate the platysma muscle bands, the submental fat, and the cervicomental angle. I assess the periorbital region for excess upper or lower eyelid skin, herniated orbital fat, and midface-lid junction hollowing — findings that might indicate the need for concurrent blepharoplasty.

From these photographs and the physical examination, I develop a surgical plan that specifies which ligaments I will release, how far I will extend the deep plane dissection, whether fat grafting is indicated, and whether additional procedures are needed.

For a patient with strong skeletal support, moderate midface descent, and good skin quality, my plan might be a focused deep plane facelift with release of the zygomatic and masseteric ligaments, repositioning of the malar fat pad, and a conservative skin redraping. This is the "standard" deep plane procedure, and it accounts for perhaps forty percent of my cases.

For a patient with significant volume loss, weak malar projection, deep nasolabial folds, and thin skin, I plan a more extensive operation: a deep plane facelift with extended ligament release, fat grafting to the malar and submalar regions, and possibly a concurrent lower blepharoplasty to address the midface-lid junction. This composite approach — combining structural repositioning with volume restoration — produces a more complete rejuvenation.

For the patient with a heavy lower face, prominent buccal fat, a recessed chin, and thick skin, the plan shifts again. Here, the deep plane dissection may need to extend further inferiorly to address the jawline and neck. I may perform a platysmaplasty to tighten the platysma muscle in the midline, correct platysmal banding, and redefine the cervicomental angle. The mandibular ligament release becomes particularly important in these patients. If the chin is significantly recessed, I discuss augmentation options.

The key principle is that the deep plane technique is not a rigid protocol — it is a philosophy of dissection that can be modulated in extent, direction, and complementary procedures based on what each individual face requires. In my operating room, I make real-time decisions based on what the tissues show me. If a ligament is stronger than expected, I adapt. If the fat pads are more atrophied than the photographs suggested, I adjust the fat grafting plan. If the orbicularis muscle appears more lax than anticipated, I may incorporate a muscle suspension that was not part of the original plan.

This adaptability is what distinguishes a surgeon-centered approach from a technique-centered approach. The goal is not to perform the perfect deep plane facelift — the goal is to produce the most natural, harmonious, and long-lasting result for each individual patient. And that requires understanding anatomy not as a textbook diagram, but as a living, variable, uniquely personal structure.

References

1. Mitz V, Peyronie M. The superficial musculo-aponeurotic system (SMAS) in the parotid and cheek area. Plast Reconstr Surg. 1976;58(1):80-88.
2. Stuzin JM, Baker TJ, Gordon HL. The relationship of the superficial and deep facial fascias: relevance to rhytidectomy and aging. Plast Reconstr Surg. 1992;89(3):441-449.
3. Mendelson BC, Freeman ME, Wu W, Huggins RJ. Surgical anatomy of the lower face: the premasseter space, the jowl, and the labiomandibular fold. Aesthetic Plast Surg. 2008;32(2):185-195.
4. Rohrich RJ, Pessa JE. The fat compartments of the face: anatomy and clinical implications for cosmetic surgery. Plast Reconstr Surg. 2007;119(7):2219-2227.
5. Furnas DW. The retaining ligaments of the cheek. Plast Reconstr Surg. 1989;83(1):11-16.

Further reading

• SMAS Anatomy and Its Role in Modern Facelift Surgery
• Retaining Ligaments in Deep Plane Facelift
• Deep Plane Facelift in Istanbul — Procedure Overview
• Composite Facelift vs Deep Plane: What Is the Difference?