Surgical Planning

Breast Implant Placement: Dual Plane vs Subfascial

UNE Plastic Surgery · Dr. Kim Uigeon, board-certified plastic surgeon · Published 2026-09-21 · Updated 2026-09-21

1. The four layers an implant can sit in

The breast is layered, from the surface inward: skin, breast (glandular) tissue, fascia, and the pectoralis major muscle. Which of these you open becomes the name of the technique. The best layer depends on the shape and development of the pectoralis muscle, so knowing the options first makes consultation far easier.

Many people ask, “Isn’t dual plane the same as submuscular?” They are different. In full submuscular placement the whole implant sits under the pectoralis, so the muscle presses on the lower implant too — the shape looks firm and deforms strongly with every muscle contraction. Placement is also a separate decision from incision: both subfascial and dual plane can be combined with an inframammary or an axillary (underarm) incision. The two standards used in practice are dual plane and subfascial, and the rest of this article compares those two.

2. Dual plane: not a location but a degree of separation

What matters in dual plane is not “where you put it” but how far the pectoralis is released. The implant goes under the muscle, but along the lower edge the muscle is detached from the gland over a defined area. That creates two layers at once within a single breast.

• Upper part: the pectoralis covers the implant, so the upper-breast line runs smoothly and, even in a lean body, edge visibility and rippling are hidden.
• Lower part: the muscle is released so the implant meets the gland directly, and lower-pole volume rounds out.

The name comes from using two different planes in one patient. It is a concept Tebbetts organized while operating on 468 patients from January 1992 to March 1998 and published in 2001 (Tebbetts, Plastic and Reconstructive Surgery, 2001).^[1] The starting point of that paper was the observation that using any single layer always exacts a price. Retromammary, partial retropectoral, and total submuscular placement each have their indications, but each also has clear drawbacks — and in a gland that has dropped, or a breast with a tight, constricted lower pole, no single layer produced a good shape. Mixing two layers in one patient was the answer: secure upper-tissue coverage while letting the implant and tissue meet naturally below.

Dual plane has its own costs

It is not a technique with advantages only. Four downsides are worth stating up front.

• Recovery is a little longer: because muscle is dissected, early pain and activity restriction last longer than with subfascial.
• The shape can change with pectoralis use: in movements that use the chest directly, such as push-ups or bench press, the implant can look compressed or pushed upward.
• Dissection accuracy drives the result: since how far you release is the result, the same-named operation varies between surgeons; more muscle dissection also means more bleeding, so hemostasis matters too.
• Muscle thins over time: with age or weight loss the muscle cover thins, and an edge hidden at first may show later.

3. What separates Dual Plane I, II, and III

Dual plane is not one technique but a classification. By how far the muscle is separated from the gland, it divides into Dual Plane 1, 2, and 3 — Type I, II, and III. The higher the number, the wider the release.

Three things narrow down the Type, and all three can be felt by hand — so the breast’s condition, not the surgeon’s preference, sets the number.

• How firmly the gland and fascia are attached: if strongly attached, the gland will not follow and flatten even with the implant under the muscle, producing a double contour where muscle and gland outlines show separately.
• The share of gland distributed above the fold: the more the gland has descended below the fold, the wider the release needed — this separates Type II from Type III.
• How much the gland has stretched: assessed by pinch test and nipple-to-fold distance; a short distance with a tight, constricted gland needs a separate approach.

Type III is used selectively by the kind of ptosis

Because Type III is used for glandular descent, people ask “can dual plane replace a lift?” The kind of ptosis has to be distinguished. If the skin has not stretched and only the gland has dropped, a widely released implant can flatten the gland from within and improve the drooped appearance at the same time. But ptosis where the skin itself has stretched is not solved by an implant — it only grows heavier and drops further, and a lift (mastopexy) is considered alongside. The kind of ptosis is told apart by measuring nipple position and skin laxity.

The Type is confirmed during surgery, not in consultation

One point deserves emphasis: the Type is hard to fix in advance during consultation. The approach organized across more than 3,500 breast procedures performed at UNE (as of January 2026) is this. In consultation, nipple position and how firmly gland and muscle are attached are used only to narrow the range. The actual value is set during surgery, by observing how far the lower muscle edge must be released for the gland to flatten naturally. So committing to “this will be Dual Plane 3” beforehand is difficult; understanding when more release becomes necessary comes first. A higher number is not a better operation, either: as the release widens, the muscle’s holding power falls and the risk of bleeding and deformation rises. Applying Type III to someone without ptosis can instead let the implant slide downward. There is only the number that fits your breast.

4. Subfascial: leaving one layer of fascia

Subfascial places the implant over the pectoralis and under the fascia. The fascia is a connective-tissue layer covering the muscle surface — only about 0.5–0.7 mm thick depending on the region, but it holds the implant from above. The core of the technique is lifting this thin membrane off the muscle without tearing it, which demands a different kind of precision from dual plane.

The concept became known when Graf and colleagues performed it on 263 patients from October 1998 to September 2001 and reported it in 2003 (Graf et al., Plastic and Reconstructive Surgery, 2003).^[2] They cited three advantages: it avoids the implant deformation that arises under the muscle; it leaves an extra tissue layer between implant and skin; and it reduces the edge that stands out when an implant is placed just under the gland. The authors also noted that overall morbidity itself was similar to other techniques. The weakness of subfascial was the long-standing absence of long-term follow-up — most reports stopped at 1–2 years. The 783-patient study below filled that gap.

A 10-year follow-up of 783 patients

One surgeon followed 783 patients operated with a single implant type from 2008 to 2018, for a mean of 6 years and up to 11.5 years (Brown, Plastic and Reconstructive Surgery, 2020).^[3] Because surgeon and implant were held constant, the data are well suited to reading subfascial performance on its own.

• Overall complications were 14.2%, most of them minor.
• The most common was capsular contracture, 6.48%.
• Hematoma 1.8%, rippling 0.8%, malposition 0.6%, rupture 0.5% — the rest around 1%.
• Infection and animation (movement) deformity were zero.

The timing of capsular contracture was distinctive. Cumulative risk was highest at 2 years post-op at 8.26%, and from year 7 onward stayed almost flat at 6.5–6.9%. It does not keep rising the longer the implant is left in; rather, in those who will develop it, it appears within the first 2–3 years. That is why follow-up in the first 2 years matters.

20 mm beside the sternum — the number that divides subfascial

This study matters more because it divided who suits subfascial and who does not by a number. The measure was soft-tissue thickness taken with a caliper at the outer sternal border, at the level of the fourth rib — more reproducible than a finger pinch.

Capsular contracture, when it occurred, was clearly associated with this area being under 20 mm (correlation coefficient 0.57). All 6 patients who developed rippling had lost weight after surgery; in 5 this thickness was a thin 3–8 mm from the start, and in 1 it had fallen from 28 mm to 18 mm. It means not only the thickness at the time of surgery but future weight change must be considered — when tissue is thin, one layer of fascia is not enough. There is one exception: an athlete whose body fat is so low that this thickness is under 10 mm, but for whom submuscular placement would impair athletic performance. The author viewed subfascial as a possible compromise there — but a choice made knowing the rippling risk.

The breast does not rise; the lower pole stretches

The same study measured shape change. Twelve weeks after surgery, the nipple-to-fold distance had increased 40%, while the sternal-notch-to-nipple distance changed only 6.2%. “An implant lifts the breast” is not accurate: the nipple stays roughly in place, and the tissue below the nipple stretches so the breast looks lifted. This is why trying to solve ptosis with subfascial alone can look more drooped over time. Size satisfaction was also measured: at 12 weeks, 11.6% said they would have chosen a slightly larger implant and 2.7% a slightly smaller one, but revision to actually change size was only 1.3%. A wish is not the same as a difference big enough to decide on revision. It is safer to set the possible range from breast width and tissue thickness before surgery, and choose a size within it.

Placed side by side with submuscular

The paper included a table setting its own results beside meta-analysis figures for submuscular placement. It is an indirect comparison, not a direct one, but the direction is clear.

In short, submuscular wins the single item of capsular contracture, while malposition, rippling, and animation deformity favor subfascial. It is not a table where one side wins — it is a table for deciding what to prioritize. Someone worried about rippling from thin tissue and someone worried about animation deformity have different answers. A limitation to note: this is single-surgeon, single-institution, single-textured-implant data, and not a randomized comparison. Whether the same result holds for smooth-surface implants needs separate confirmation.

5. Does capsular contracture depend on the plane?

“Does placing it under the muscle prevent capsular contracture?” is a frequent question. There is a trend by layer, but it does not reduce to the layer alone. First, the term: capsular contracture is when the capsule that naturally forms around an implant thickens and hardens abnormally. Clinically it is graded in four Baker stages.

• Baker I: neither visible nor palpable. A capsule forms around every implant, so this is not a complication.
• Baker II: slightly firm to the touch, but normal in appearance.
• Baker III: firm, with visible shape change beginning.
• Baker IV: firm and accompanied by pain.

Most figures below are for Baker III–IV, the stage at which revision is considered. A Danish registry study of 2,277 patients followed for a mean of 1.6 years shows this well (Henriksen et al., Annals of Plastic Surgery, 2005).^[4] In it, submuscular placement lowered the risk of Baker III–IV contracture to 0.3× (95% CI 0.2–0.8). So far this matches the familiar story. But in the same study, looking at all complications requiring reoperation, the result flips: an inframammary incision and subglandular placement were associated with lower risk of surgery-requiring complications. The leading reason for reoperation there was not contracture but implant displacement (38%); contracture was 16%. Implants over 350 mL raised the risk of a surgery-requiring complication 2.3×. In short: placing under the muscle helps on contracture but can hurt on displacement and deformation — the same picture as the 783-patient data. This is why the difference cannot be reduced to a single layer.

Why muscle coverage lowers contracture

Three mechanisms are proposed: the pectoralis physically blocks bacteria from the ducts away from the implant, the muscle’s rich blood flow clears inflammation quickly, and everyday movement keeps the muscle shifting the upper implant so the capsule is less likely to harden in one direction. They are thought to act together, not any one alone.

What acts more strongly than the plane

Capsular contracture arises from bleeding, bacterial contamination, implant surface, dissection accuracy, and individual capsule response together — not the plane alone. The one most controllable in the operating room is bacterial contamination. In a report of 42,035 implants followed for a mean of 11.7 years, following a 14-step process to reduce contamination gave an overall contracture rate of 2.2% and no reported breast implant-associated anaplastic large-cell lymphoma (Adams et al., Plastic and Reconstructive Surgery, 2017).^[5] The steps include skin antisepsis, antibiotic-solution irrigation, nipple shielding, matching the dissection pocket precisely to the implant, minimizing exposure time, and meticulous hemostasis. Patients also have a role in recovery: taking prescribed medication for the set period, keeping a support garment on for up to 4 weeks, not sleeping pressed on one side, deferring upper-body exercise, and stopping smoking and limiting alcohol.

6. The two techniques side by side

Gathering the evidence above item by item gives the following — and again, this is not a table where one side wins everything.

7. How the two techniques are chosen

There is an order: whether tissue can cover the implant comes first, activity level second, ptosis third.

• Priority 1 · tissue thickness: if a pinch test of the upper skin and tissue is 2 cm or more, subfascial enters the options. In a lean body under 2 cm, the implant edge may be palpable or rippling may show, so dual plane — muscle covering the upper part — is recommended first. This is the same story as the 20 mm lateral-sternal threshold in the 783-patient study.
• Priority 2 · pectoralis use: strong pectoralis use, as in weight training or Pilates, can make movement noticeable with dual plane, so subfascial is favorable. A well-developed pectoralis also lengthens recovery through the dissection itself.
• Priority 3 · degree of ptosis: mild glandular descent is handled together with dual plane Type II/III. Ptosis where the skin has stretched is not solved by an implant alone, so a concurrent lift is considered; choosing subfascial alone when ptosis is clear tends to look more drooped over time.

In summary: a lean body with thin skin points to dual plane; a standard or fuller body with high activity and quick recovery as the priority points to subfascial. Rather than one technique being superior, whether there is tissue to cover the implant is decided first, and the plane follows.

8. Recovery and pain

The overall course is similar for both techniques; the difference is concentrated in the first 1–2 weeks.

Pain itself is not as high as feared. In a study interviewing 225 patients, average breast-surgery pain was 5.9 out of 10 and average time off work was 6.6 days (Swanson, Plastic and Reconstructive Surgery, 2013).^[6] Note that this study was all submuscular placement and mostly saline implants, so it differs from current conditions in Korea. Dual plane runs slightly above this average but improves quickly within the first week. Recovery speed is not set by the plane alone: dissection extent, blood loss, operating time, and implant size all act together. Even for the same dual plane, recovery is faster when bleeding is low and dissection is accurate.

9. What to confirm in consultation

Whichever layer is recommended, check whether the following were covered — all the evidence in this article gathers into these items.

• Was tissue thickness actually measured? Whether upper-breast and lateral-sternal thickness were taken by pinch test or caliper, and the layer explained using that number.
• Were exercise habits asked? How much the pectoralis is used changes the chance of movement deformation with dual plane.
• Was the kind of ptosis distinguished? Whether only the gland dropped or the skin also stretched decides the Type and whether a lift is needed.
• Were weight-change plans asked? Subfascial can develop rippling if body fat decreases, so any diet plan should be factored in beforehand.
• Were the trade-offs explained? Whether you heard both the recovery and deformation of dual plane and the edge and contracture tendency of subfascial. If you heard only advantages, ask again.

10. Summary

1. Dual plane is not one technique but a classification of how far the muscle is separated.
2. The first priority in choosing is tissue thickness; activity level and ptosis come after.
3. Subfascial is stable above 20 mm of lateral-sternal soft tissue, is not recommended under 10 mm, and requires considering future weight change.
4. In 10-year subfascial data, contracture was 6.48% — higher than under the muscle — but malposition, rippling, and animation deformity were far lower.
5. Capsular contracture is not set by the plane alone; bacterial-contamination control and recovery care act together.
6. In consultation, check whether thickness was measured, whether exercise, ptosis, and weight plans were asked, and whether the trade-offs were explained.

References

1. Tebbetts JB. Dual plane breast augmentation: optimizing implant-soft-tissue relationships in a wide range of breast types. Plast Reconstr Surg. 2001;107(5):1255–1272. doi:10.1097/00006534-200104150-00027. (468 patients, Jan 1992–Mar 1998.)
2. Graf RM, Bernardes A, Rippel R, et al. Subfascial breast implant: a new procedure. Plast Reconstr Surg. 2003;111(2):904–908. doi:10.1097/01.PRS.0000041601.59651.15. (263 patients, Oct 1998–Sep 2001.)
3. Brown T. A comprehensive outcome review of subfascial breast augmentation over a 10-year period. Plast Reconstr Surg. 2020;146(6):1249–1257. doi:10.1097/PRS.0000000000007333. (783 patients; capsular contracture 6.48%; 20 mm lateral-sternal soft-tissue threshold.)
4. Henriksen TF, Fryzek JP, Hölmich LR, et al. Surgical intervention and capsular contracture after breast augmentation: a prospective study of risk factors. Ann Plast Surg. 2005;54(4):343–351. doi:10.1097/01.sap.0000151459.07978.fa. (2,277 patients, mean 1.6-year follow-up.)
5. Adams WP, Culbertson EJ, Deva AK, et al. Macrotextured breast implants with defined steps to minimize bacterial contamination around the device: experience in 42,000 implants. Plast Reconstr Surg. 2017;140(3):427–431. doi:10.1097/PRS.0000000000003575. (42,035 implants, mean 11.7-year follow-up.)
6. Swanson E. Prospective outcome study of 225 cases of breast augmentation. Plast Reconstr Surg. 2013;131(5):1158–1166. doi:10.1097/PRS.0b013e318287a0e1. (225 patients; mean pain 5.9; mean 6.6 days off work.)