Dr Scott J Turner | Specialist Plastic Surgeon (FRACS) | Sydney
Anatomy, Techniques and Variations
SMAS stands for Superficial Musculoaponeurotic System. It’s a deeper support layer beneath the facial skin, and it sits at the centre of how most modern facelifts are planned. Understand the SMAS and a lot of the confusing terminology falls into place: SMAS facelift, deep plane facelift, lower facelift and the rest are, in large part, descriptions of how a surgeon handles this one layer.
This article is educational. It explains the anatomy, how SMAS-based techniques developed, the main variations, and how I currently think about SMAS surgery compared with deep plane facelift. For procedure-specific information about candidacy, recovery, risks, cost and consultation requirements, see SMAS facelift surgery in Sydney.
Dr Scott J Turner is a Specialist Plastic Surgeon (FRACS) consulting in Bondi Junction and Manly, Sydney.
Quick Answer: What Is a SMAS Facelift?
A SMAS facelift is a facelift that works on the Superficial Musculoaponeurotic System, the supportive fibromuscular layer beneath the skin and superficial fat, rather than tightening the skin alone. The SMAS can be folded (plication), partly removed (SMASectomy), or mobilised more extensively (high SMAS and extended SMAS). Working on this layer rather than the skin is what gives the result its structural support, and it’s the feature SMAS techniques share with the deep plane facelift, which works one layer deeper still.
What Is the SMAS?
The SMAS is a continuous fibromuscular layer beneath the skin and superficial fat. It connects regions of the face and neck, blending with the platysma muscle below and the temporal fascia above, and it’s one of the structural layers a surgeon considers when planning a facelift. Deeper again sit the facial retaining ligaments, which tether the soft tissue to bone, and the facial nerve branches, which is why dissection below this level demands particular care.
The short version: skin is the surface, the SMAS is the support layer underneath, and the difference between facelift techniques largely comes down to how that support layer is handled.
How Facelift Surgery Evolved From Skin-Only to SMAS-Based Techniques
Facelift surgery has changed considerably over the decades, and the direction of travel has been steadily deeper.
Skin-Only Facelifts
Earlier operations often focused mainly on redraping skin. Tightening the surface can do only so much, though, and pulling on skin alone tends not to hold, which is part of why techniques moved on.
Toward the SMAS
The description of the SMAS as a distinct anatomical layer influenced the development of later techniques. Once surgeons were working on this layer rather than relying on skin tension, the support for a result came from structure rather than surface, and the SMAS-based family of operations followed: plication, SMASectomy, high SMAS, extended SMAS, and, working beneath the SMAS entirely, the deep plane facelift.
The Main SMAS Facelift Variations
“SMAS facelift” is really a family of techniques, not one operation. They differ in how the layer is handled.
SMAS Plication
The SMAS is folded on itself and secured with sutures. No tissue is removed. It’s a less extensive way of working with the layer, and it may be considered in selected cases where the SMAS quality supports a fold holding well.
SMASectomy
Here a strip of SMAS is removed and the edges are sutured together. Rather than folding the layer, the surgeon takes length out of it, which tightens the SMAS along the line of excision. The two approaches can produce a similar effect by different routes.
High SMAS
The SMAS is mobilised higher on the face. That higher point of work is what can bring the midface into the operation, which a lower SMAS approach may not reach, so high SMAS is sometimes discussed when midface involvement is part of the picture.
Extended SMAS
The most extensive of the SMAS-based techniques. The layer is mobilised more widely, sometimes with partial release of the retaining ligaments, so it can be repositioned over a broader area. It begins to approach, though it does not become, the territory of the deep plane. The distinction is real: extended SMAS still works within and on the layer, while a deep plane facelift releases the retaining ligaments and works beneath the SMAS entirely. Close cousins, not the same operation.
For procedure-specific discussion of these variations and which may suit particular anatomy, see SMAS facelift surgery in Sydney.
How the Choice Between SMAS Techniques Is Made
The technique isn’t chosen from the name. It follows the assessment. What gets weighed: the pattern of descent across the face, skin quality, the thickness and quality of the SMAS itself, how much the neck is involved, whether there’s been prior surgery that has altered the tissue planes, and the broader surgical plan including any procedures being combined in the same operation. Two patients who both look like candidates for a SMAS-based operation can still be planned differently once those factors are weighed. SMAS thickness is a good example: a thin, attenuated layer may not hold a plication the way a robust one will, which can steer the choice toward removing tissue rather than folding it, or toward working in a different plane altogether.
Dr Turner’s Clinical View: SMAS vs Deep Plane Facelift
Since this question comes up in almost every consultation, I’ll answer it directly. In my clinical opinion, deep plane facelift is usually my preferred technique for many suitable patients. I consider it to offer aesthetic and longevity advantages over SMAS facelift in many patients, because it works beneath the SMAS layer and allows selected retaining ligaments to be released so the deeper tissues can be repositioned as a composite unit rather than held by surface tension.
Then safety, which is where deep plane is most often misunderstood. I consider the profile similar to SMAS facelift when the operation is performed by an appropriately trained Specialist Plastic Surgeon. Yes, the plane sits closer to the facial nerve branches. The technique demands specific training and regular practice. But in competent hands I don’t regard it as the riskier choice, and the qualifier in that sentence is doing real work.
I want to be clear about what that is and isn’t. It’s my clinical opinion and surgical judgement, formed in practice. It is not a universal rule proven in the literature, where the comparison remains genuinely debated, and it does not mean deep plane is the right operation for every patient. SMAS facelift remains an established, valuable technique, a common comparison point, and the appropriate choice in selected cases. The right operation for you depends on your anatomy, tissue position, skin quality, neck involvement, prior surgery, medical history and what consultation finds. If you want the full side-by-side, the deep plane vs SMAS facelift comparison guide sets it out.
Where SMAS Surgery Sits in the Facelift Cluster
SMAS terminology turns up across several procedures because the SMAS is simply part of facial anatomy, but each page has a distinct role. The SMAS facelift page covers SMAS-based surgery specifically; the deep plane facelift page covers the sub-SMAS approach; the lower facelift and short scar facelift pages address more focused concerns; the Vertical Restore Facelift covers multi-area planning; and the facelift surgery hub ties them together. This article exists to explain the anatomy behind all of them, not to replace any one page.
SMAS Technique and Facelift Longevity
Facelift longevity varies between patients. Technique matters, but it isn’t the only factor, and it may not be the largest one. Anatomy, skin quality, tissue quality, weight stability, smoking status, sun exposure, general health and ongoing ageing all influence how a result changes over the years. In my opinion deep plane surgery may offer longevity advantages for many suitable patients, but expected duration still varies, and I’d discuss it against your anatomy at consultation rather than quote a number here. A figure on a website implies a precision that facelift longevity simply doesn’t have, because the patient sitting across from me matters more to the answer than the technique name does. The how long does a facelift last guide covers this in full.
Risks and Realistic Expectations
All facelift surgery carries risks. SMAS-based techniques may involve bleeding or haematoma, infection, delayed wound healing, scarring, altered sensation, asymmetry, facial nerve injury, anaesthetic risks and the possible need for further surgery. Outcomes vary between patients.
The point worth holding onto: a technique shouldn’t be chosen because of the marketing language attached to it. The operation needs to match your anatomy and your risk profile, which is the entire purpose of the assessment. For procedure-specific risk discussion, see SMAS facelift surgery in Sydney.
SMAS Facelift FAQs
What is a SMAS facelift?
A SMAS facelift is a facelift that works on the Superficial Musculoaponeurotic System, the supportive layer beneath the facial skin and superficial fat, rather than tightening skin alone. The layer may be folded, partly removed or mobilised more extensively depending on the technique. Working on this layer is what gives the result structural support rather than relying on surface tension.
What does SMAS stand for?
SMAS stands for Superficial Musculoaponeurotic System. It is a continuous fibromuscular layer beneath the skin and superficial fat that connects regions of the face and neck, blending with the platysma in the neck. It is one of the structural layers a surgeon considers when planning a facelift, and several facelift techniques are defined by how they handle it.
What is the difference between SMAS plication and SMASectomy?
SMAS plication folds the SMAS layer on itself and secures it with sutures, without removing tissue. SMASectomy removes a strip of the SMAS and sutures the edges together, tightening the layer by taking length out of it. Both work on the same layer; they differ in whether tissue is folded or removed, and the choice depends on individual assessment.
Does Dr Turner prefer SMAS or deep plane facelift?
In Dr Turner’s clinical opinion, deep plane facelift is usually his preferred technique for many suitable patients, because he considers it to offer aesthetic and longevity advantages while maintaining a similar safety profile when performed by an appropriately trained Specialist Plastic Surgeon. This is his clinical opinion rather than a settled fact in the literature, and it does not mean deep plane is right for every patient. Technique selection follows individual assessment.
Is SMAS facelift still used?
Yes. SMAS facelift remains an established and widely used technique, and it is an important comparison point for understanding facelift surgery generally. It may be the appropriate choice in selected cases depending on anatomy, tissue position and the surgical plan. The right technique for any individual patient is determined at consultation rather than by the popularity of a procedure name.
Next Steps
Where next? It depends on what you’re researching. If it’s SMAS facelift surgery specifically, the dedicated SMAS facelift surgery in Sydney page covers candidacy, recovery, risks, cost and consultation requirements. If you’re weighing SMAS against deep plane, the deep plane vs SMAS facelift comparison guide and the deep plane facelift page go further.
To discuss facelift surgery in Sydney, book a consultation with Dr Scott J Turner, Specialist Plastic Surgeon (FRACS). Consultations are available in Bondi Junction and Manly.
A GP referral is required before a cosmetic surgery consultation, and AHPRA-required steps apply before any procedure, including a minimum of two consultations and a 7-day cooling-off period.
Call 1300 437 758 or visit the contact page to request an appointment.
