Implant Placement · 3 of 4
Dual-plane placement
The most common modern primary augmentation placement. Combines submuscular upper-pole coverage with subglandular lower-pole natural drape. Three Tebbetts types matched to patient anatomy.
Clinical summary
Dual-plane placement is the most common modern primary augmentation placement. The implant sits in two anatomic planes simultaneously: upper portion submuscular (under pectoralis muscle for edge coverage), lower portion subglandular (released from muscle to allow natural breast drape). Combines submuscular coverage with subglandular natural drape. Reduced animation vs pure submuscular but not eliminated. Three Tebbetts types based on extent of muscle release. Modern default for primary augmentation in most patients.
The four placement options
| Placement | Position | Best for |
|---|
| Subglandular | Over the muscle, under breast tissue | Patients with substantial breast tissue; athletes |
| Submuscular | Under the pectoralis major muscle | Thin patients needing maximum coverage |
| Dual plane | Upper portion submuscular, lower released | Most patients — modern default |
| Subfascial | Under deep fascia, over muscle | Specific cases; less commonly used |
Placement determines how the implant interacts with surrounding tissue — visibility of edges, capsular contracture risk, animation deformity (movement during muscle contraction), and the natural appearance and feel of the result. Dual plane is the most common in modern practice; pure submuscular and subglandular have specific indications.
Dual-plane anatomy
Dual-plane placement creates a hybrid pocket:
| Implant region | Position | Coverage |
|---|
| Upper pole (top) | Submuscular | Pectoralis muscle + breast tissue + skin |
| Lower pole (bottom) | Subglandular | Breast tissue + skin only |
The implant transitions between these two planes as the pectoralis muscle is released from its lower attachment to breast tissue. The upper muscle attachment is preserved (covering the upper implant), while the lower muscle attachment is released (allowing breast tissue to drape naturally over the lower implant).
The three Tebbetts types
| Type | Muscle release extent | Best for |
|---|
| Type 1 | Minimal release (~half a centimeter) | Thin patients without ptosis; essentially pure submuscular with minor modification |
| Type 2 | Moderate release (to inframammary fold level) | Most patients — modern default |
| Type 3 | Maximum release (above inframammary fold) | Patients with mild ptosis, constricted lower pole, or tuberous breast features |
Tebbetts Type 2 is the most common dual-plane variant — appropriate for the average primary augmentation patient. Type 1 reserved for thin patients where maximum coverage is needed. Type 3 used when the lower pole anatomy needs more aggressive release to allow natural drape.
Why dual-plane dominates modern practice
The advantages explain why dual-plane is the modern default:
- Edge coverage at upper pole — submuscular coverage where it's most needed (thin upper pole tissue).
- Natural lower pole drape — breast tissue settles naturally over the lower implant, creating natural-looking lower pole appearance.
- Reduced animation — partial muscle release reduces but does not eliminate animation; for most patients this is acceptable.
- Low capsular contracture rates — comparable to pure submuscular (~2-4%).
- Versatile — works for thin, average, and mildly ptotic anatomy with type adjustment.
Recovery timeline
Recovery similar to pure submuscular but slightly less muscle stretch:
- Day 0-3 — moderate initial discomfort.
- Day 7-14 — office work return.
- Week 2-3 — light cardio resumption.
- Week 4-6 — light strength training (no chest exercises).
- Week 6-8 — chest exercises (slightly earlier than pure submuscular).
- Week 8-10 — full physical activity.
The slightly faster return to chest exercises (Week 6-8 vs 8-10 for pure submuscular) reflects the partial muscle release in dual-plane.
Patient profiles matched to dual-plane types
| Patient anatomy | Recommended type |
|---|
| Very thin (less than 2 cm pinch), no ptosis | Type 1 (minimal release for maximum coverage) |
| Average tissue thickness, no significant ptosis | Type 2 (modern default) |
| Mild ptosis without need for full mastopexy | Type 3 (more aggressive release) |
| Constricted lower pole | Type 3 |
| Tuberous breast features | Type 3 (often combined with other corrections) |
When another placement may be preferred
- Athletes prioritising zero animation — subglandular eliminates animation entirely.
- Patients with substantial overlying breast tissue (over 4 cm pinch) — subglandular is faster recovery without coverage concern.
- Patients with significant ptosis requiring lift — see augmentation + mastopexy.
- Specific revision indications — surgeon-determined.
Frequently asked questions
What is dual-plane placement?
Dual-plane placement is a refined submuscular technique where the upper portion of the pectoralis muscle remains attached to cover the upper part of the implant, while the lower portion of the muscle is released from the breast tissue to allow natural drape over the lower implant. The 'dual plane' refers to the implant being in two anatomic planes simultaneously: submuscular at the top and subglandular at the bottom. Developed by John Tebbetts in 2001 and now the dominant placement in modern primary augmentation.
Why is dual-plane the most common modern placement?
It combines advantages of both submuscular and subglandular while reducing both their disadvantages. Coverage at the upper pole (where it's most needed for masking edges in thin patients) is maintained by the muscle layer. Natural breast drape at the lower pole is preserved by releasing the muscle from breast tissue. Animation deformity is reduced compared to pure submuscular but not eliminated. Capsular contracture rates remain low (similar to pure submuscular). The result is the most natural-looking outcome for the broadest range of patients.
How is dual-plane different from pure submuscular?
Pure submuscular: pectoralis muscle covers the entire implant, including the lower portion. Breast tissue is held away from the implant by the intact muscle. Dual-plane: muscle covers only the upper implant; the lower muscle attachment to breast tissue is released, allowing breast tissue to drape naturally over the lower implant. This release creates a more natural lower pole appearance — the breast tissue settles over the implant rather than being held away by intact muscle.
Are there variations of dual-plane?
Yes — Tebbetts described three dual-plane types based on the extent of muscle release. Type 1: minimal release (essentially pure submuscular with slight modification). Type 2: moderate release for patients with mild ptosis. Type 3: maximum release for patients with significant ptosis or constricted lower pole. The right type for a patient is determined by their specific anatomy — degree of natural sagging, lower pole tightness, breast tissue distribution. A surgeon experienced with dual-plane will select the appropriate type.
Does dual-plane reduce animation deformity?
Partially. The lower muscle release means less muscle interaction with the implant during contraction — animation is reduced compared to pure submuscular but not eliminated. Patients with developed pectoralis muscles may still experience visible animation during heavy chest exercises. For patients prioritising no animation, subglandular remains the only complete solution. For most patients, the reduced animation of dual-plane is acceptable.
Is dual-plane appropriate for combined augmentation + mastopexy?
Yes — dual-plane is commonly used in combined operations. The natural drape provided by lower muscle release suits the lift positioning. The upper coverage from the maintained muscle attachment supports the lifted breast tissue. Combined operation typically uses dual-plane Type 2 or Type 3 depending on the degree of pre-existing sagging. See
augmentation + mastopexy page for combined operation details.
Related references