5 Techniques for Mini-Incisional Blepharoplasty with Septum–Orbicularis Fixation for Double Eyelid Formation
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Introduction
The creation of a supratarsal crease remains one of the most frequently performed aesthetic procedures in East Asian patients. Conventional approaches broadly fall into two categories: non-incisional suture techniques and full-incision blepharoplasty. While suture methods offer minimal invasiveness and rapid recovery, they are limited by higher rates of fold attenuation and long-term instability. In contrast, full-incision techniques provide durable crease formation but at the cost of increased tissue trauma, prolonged edema, and visible scarring in selected cases.
Contemporary surgical evolution has focused on bridging this gap through mini-incisional (partial-incision) techniques, which aim to preserve the advantages of both approaches. Central to many of these methods is septum–orbicularis fixation (SOF)—a strategy that anchors the anterior orbital septum (or its derivatives) to the orbicularis oculi muscle to recreate the physiologic adhesion responsible for a natural double eyelid.
This article reviews five established mini-incisional techniques incorporating SOF principles, with emphasis on their anatomical rationale, operative workflow, and reported clinical outcomes. These techniques provide a structured framework for tailoring surgical strategy to individual eyelid morphology.


Core Techniques in Mini-Incisional Septum–Orbicularis Fixation 1. Single Mini-Incision Orbicularis–Orbital Septum Fixation (SOF)
The single mini-incision technique represents the most streamlined implementation of SOF. A solitary incision (8–12 mm) is placed along the designed crease, typically corresponding to the superior border of the tarsal plate.
The defining maneuver involves inferior turnover of the distal anterior orbital septum, which is then anchored to the inferior orbicularis oculi muscle using three buried sutures (central, medial, and lateral). This configuration recreates the layered adhesion seen in naturally occurring double eyelids. Closure is performed with an intradermal suture, avoiding external knot visibility.
Surgical Workflow
Preoperative crease marking from the lid margin in the sitting position
Local anesthesia followed by a single midline mini-incision
Dissection to expose orbital septum and levator aponeurosis junction
Selective debulking of orbicularis and fat as indicated
Inferior rotation of distal septum and three-point fixation to inferior orbicularis
Intradermal skin closure
Outcomes
Mean operative time: 27 minutes
Rapid edema resolution (≈5 days; near complete by 2 weeks)
High satisfaction (99.4%)
Low complication rates (asymmetry 1.2%, crease loss 0.6%)
2. Triple Mini-Incision Technique with Distributed Fixation
The three-incision method expands fixation across the eyelid by utilizing three discrete portals (medial, central, lateral), each measuring 3–5 mm. This configuration improves crease continuity and is advantageous in patients with thicker soft tissue or prominent pre-aponeurotic fat.
Through each incision, selective debulking of pretarsal orbicularis and fat is performed. Fixation sutures engage the septum or levator complex and are anchored to the lower flap dermis or orbicularis.
Surgical Workflow
Three incision points marked along the crease line
Portal-based dissection to pre-aponeurotic plane
Targeted fat and orbicularis reduction per region
Placement of fixation sutures at each portal
Closure with fine sutures or adhesive support
Outcomes
Consistent crease formation
Improved symmetry across the lid
Reliable long-term retention
3. Four-Portal Mini-Incisional Technique with Pretarsal Fascia Fixation
The four-incision approach further refines crease precision by distributing fixation across four equidistant 2 mm portals. This method is especially useful in patients with long palpebral fissures, where fewer fixation points may result in segmental instability.
Following orbicularis excision over the levator plane, fat removal is performed—typically more aggressively laterally. Each portal is then used to anchor skin to the pretarsal fascia.
Surgical Workflow
Design of four evenly spaced incision sites
Blunt dissection to levator aponeurosis level
Removal of overlying orbicularis
Lateral (and selective medial) fat excision
Four-point fixation to pretarsal fascia
Skin closure
Outcomes
Satisfaction rate: approximately 92%
Mean follow-up duration: 9 months
Consistent supratarsal crease formation observed
High degree of symmetry across the eyelid
Stable aesthetic outcomes maintained over follow-up period
4.Modified Partial-Incision Technique (SIMDI)
The SIMDI (Small-Incision, Minimal Dissection) technique diverges from traditional methods by preserving the orbicularis oculi muscle rather than excising it. Instead of debulking, the intact orbicularis serves as a fixation interface.
Sutures are placed between the orbicularis and levator aponeurosis, allowing crease formation through dynamic tissue coupling rather than structural reduction.
Surgical Workflow
Small incision (6–10 mm) at crease level
Minimal subcutaneous dissection
Conservative fat removal only when necessary
Identification of levator aponeurosis
Orbicularis-to-levator fixation (1–2 sutures)
Skin closure with optional short-term taping
Outcomes
Preservation of anterior lamellar volume
Formation of softer, more natural-appearing supratarsal folds
Dynamic crease behavior with eyelid movement
Reduced risk of postoperative hollowing
Lower likelihood of over-deepened or overly rigid crease formation
5.Tarsus–Orbicularis–Septum (TOS) Triple-Layer Fixation
The TOS technique represents the most structurally comprehensive mini-incisional approach, utilizing a three-layer anchoring system involving the pretarsal tissue/tarsus, orbicularis oculi, and distal orbital septum flap. By incorporating the tarsus as a deep anchor, this method addresses a key mechanism of long-term failure—insufficient deep fixation.
Surgical Workflow
Exposure of the orbital septum and levator aponeurosis complex
Controlled fat debulking with creation of a distal septal flap
Three-layer fixation sequence:
Pretarsal tissue / superficial tarsus (deep anchor)
Orbicularis oculi of the lower flap (intermediate layer)
Downward-turned distal septal flap (anterior layer)
Skin closure using a buried knot technique
Outcomes
High overall improvement rates with durable crease formation
Enhanced long-term fold stability due to deep tarsal anchoring
Reduced likelihood of crease loosening compared to superficial fixation methods
Natural, dynamic eyelid movement preserved through multi-layer coupling
Consistent aesthetic outcomes maintained over mid- to long-term follow-up



Comparative Analysis: Technique Selection Matrix
Technique | No. of Incisions | Fixation Anchor | Debulking | Operative Time | Ideal Candidate | Crease Stability |
Single-Incision SOF | 1 (~8–12 mm) | Septum → Orbicularis | Moderate | ~27 min | Thin–medium eyelids, younger patients | High (reported satisfaction ~99%) |
Triple Mini-Incision | 3 (3–5 mm each) | Septum / Levator → Orbicularis | Moderate–high | 30–45 min | Medium–thick eyelids, prominent lateral fat | Good (supported by systematic review data) |
Four-Portal Pretarsal | 4 (≈2 mm each) | Skin → Pretarsal Fascia | Selective (per portal) | 35–50 min | Longer palpebral aperture, need for even crease distribution | Good (reported satisfaction ~92%) |
SIMDI (Orbicularis-Preservation) | 1 (6–10 mm) | Orbicularis → Levator | Minimal (orbicularis preserved) | 20–30 min | Younger patients, thin eyelids, preference for soft crease | Moderate (volume-dependent outcomes) |
TOS Triple-Layer Fixation | 1–3 (variable) | Tarsus + Orbicularis + Septum | Moderate | 40–55 min | Revision cases, higher risk of crease loss | High (enhanced structural durability) |
Conclusion
Mini-incisional blepharoplasty techniques incorporating septum–orbicularis fixation represent a meaningful evolution in double eyelid surgery, providing a structured intermediate approach between non-incisional suture methods and full-incision procedures. Across the spectrum of techniques, long-term outcomes are primarily influenced by the depth and distribution of fixation, the extent of soft-tissue preservation, and the precision of anatomical layer engagement, rather than incision length alone.
Single-incision approaches offer procedural efficiency and rapid recovery with reliable crease formation in appropriately selected patients. In contrast, multi-portal techniques improve regional control and symmetry, particularly in patients with thicker or anatomically variable eyelids. Preservation-based strategies such as SIMDI prioritize maintenance of soft-tissue volume and dynamic crease behavior, whereas multi-layer fixation systems such as TOS enhance structural stability and long-term fold retention, especially in revision or high-risk cases.
Overall, septum–orbicularis fixation serves as a unifying reconstructive principle that enhances predictability of crease formation by recreating a physiologic adhesion plane. With appropriate technique selection based on eyelid anatomy and surgical objectives, mini-incisional approaches can achieve an optimal balance of natural aesthetic outcome, low morbidity, and durable crease stability.
Reference:
Chen, B., Ma, L., Qi, H., & Luo, L. (2024). Single-incision mini-incisional blepharoplasty with orbital septum–orbicularis fixation: A clinical study of outcomes and technique refinement. Journal of Plastic and Aesthetic Surgery.
Lin, X., Wang, Y., & Zhang, H. (2022). Small-incision orbicularis-preserving double eyelid surgery (SIMDI): A minimally invasive approach for dynamic crease formation. Journal of Plastic and Reconstructive Surgery.
Xu, Y., Liu, J., & Chen, W. (2016). Four-portal mini-incisional blepharoplasty with pretarsal fascia fixation: A long-term clinical evaluation. Journal of Plastic, Reconstructive & Aesthetic Surgery.
Zheng, M., Huang, L., & Gao, Q. (2022). Mini-incisional blepharoplasty techniques: A systematic review of multi-portal fixation methods in double eyelid surgery. Journal of Plastic, Reconstructive & Aesthetic Surgery.
Wang, J., Li, X., & Sun, R. (2022). Tarsus–orbicularis–septum (TOS) triple-layer fixation in double eyelid surgery: A prospective clinical evaluation. Aesthetic Plastic Surgery.
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