Posterior Epicanthoplasty Revision (Posterior Epicanthoplasty Reconstruction) Revision Surgery Process and Limitations — Canthus Height Adjustment and Scar Improvement Case Guide
Understanding Cosmetic Surgery Results and the Necessity of Revision Surgery
Cosmetic surgery, despite thorough preoperative planning, can produce results that differ from patient expectations, sometimes requiring additional correction.
All cosmetic surgeries, even with careful preoperative planning and postoperative care, may produce results that fall short of patient expectations. This occurs because various factors—individual tissue characteristics, healing responses, and anatomical changes from previous surgery—work together in complex ways.
In particular, posterior epicanthoplasty revision (posterior epicanthoplasty reconstruction), which aims to improve results from previous surgery, has higher difficulty than primary surgery and more complex result prediction because it must account for existing tissue conditions and already-altered anatomical structures. For this reason, even after a certain period following initial surgery, additional improvement requests regarding canthus height or scar status may arise, in which case revision surgery becomes a consideration.
Revision surgery following posterior epicanthoplasty revision may occur in some cases among total revision cases, and results can vary depending on individual tissue response and healing progression.
When considering surgical correction, it is important to first understand the level of surgically permissible range in the current tissue condition, not merely external appearance. Sheone Plastic surgery (plastic surgery clinic specializing in eyelid surgery and revision eyelid surgery) provides preoperative consultation regarding current eye condition analysis, identifying achievable improvement scope and limitations.
Preoperative Status and Surgical Plan for Posterior Epicanthoplasty Revision
Seven months following posterior epicanthoplasty revision, insufficient canthus height and depressed scarring at the incision line were identified as primary revision goals.
Desired Improvements Before Revision
This case involved a patient who, approximately 7 months after undergoing posterior epicanthoplasty revision (posterior epicanthoplasty reconstruction), sought additional improvement in two aspects and proceeded with revision surgery planning.
① Insufficient elevation of canthus (lateral canthus, lateral canthus) height
It was necessary to relocate and fix the canthus to a higher position than the fixation point originally established during initial posterior epicanthoplasty revision. To achieve this, bone fixation and periosteal fixation techniques were employed in combination for stronger and more stable fixation.
② Depressed scarring at the incision line from posterior epicanthoplasty revision
Hypertrophic scarring around the incision line created height differences between superior and inferior areas, resulting in apparent depression in specific areas. Resolving this fundamentally required scar removal surgery involving excision of the hypertrophic scar.
Surgical Plan Modification
However, reflecting the patient's preference against additional skin excision, the surgical plan was modified toward improvement without scar excision. Specifically, adhesiolysis was performed, and additional manipulation of the orbicularis oculi muscle around the canthus using vertical mattress suture technique was applied to increase volume in the area.
Surgical approach is determined by comprehensively considering patient requests and anatomical permissible ranges, and improvement of depressed scars can be expected through adhesiolysis and orbicularis muscle manipulation without skin excision.
Revision surgery is not conducted using a single method but rather with surgical approach determined by reflecting the patient's current tissue condition, requirements, and anatomical permissible ranges.
Key Techniques in Posterior Epicanthoplasty Revision: Comparison of Bone Fixation, Periosteal Fixation, and Adhesiolysis
In revision surgery, different techniques such as bone fixation, periosteal fixation, and adhesiolysis are selectively or combinatorially applied depending on target correction amount and tissue condition.
The following table organizes major techniques used in the posterior epicanthoplasty revision process by category. This is provided for reference to understand surgical method characteristics, not for comparison between medical institutions.
| Category | Bone Fixation | Periosteal Fixation | Adhesiolysis |
|---|---|---|---|
| Fixation Location | Direct fixation of canthus ligament to bone | Fixation to periosteum covering bone | Adhesion sites of scar tissue are released |
| Fixation Strength | Very strong | Strong | Not applicable (adhesion release purpose) |
| Primary Indication | Cases requiring significant cephalad canthus displacement | Cases requiring moderate position correction | Scar-related tissue adhesion and depression improvement |
| Direct Scar Improvement Effect | Low | Low | Primary purpose |
| Combinatorial Applicability | Compatible with periosteal fixation | Compatible with bone fixation | Compatible with other techniques |
| Limitations | No additional correction possible when bone fixation range exceeded | Position correction amount limited with sole use | Severe hypertrophic scar may respond better to excision |
In this case, bone fixation and periosteal fixation were combined to relocate and fix the canthus approximately 5 mm cephalad on the left and 7 mm on the right. For the scar area, adhesiolysis and orbicularis oculi muscle vertical mattress suturing were combined without skin excision.
Postoperative Progress at Day 9 (Immediately After Suture Removal) Following Revision Surgery
At postoperative day 9 (immediately after suture removal), cephalad displacement of canthus position and relief of hypertrophic scarring and depression around the incision can be confirmed.
Canthus Height Adjustment Results
Using the original fixation point from initial posterior epicanthoplasty revision as reference, the canthus (lateral canthus) was re-fixed approximately 5 mm cephalad on the left and 7 mm cephalad on the right following revision. At postoperative day 9, immediately after suture removal, initial edema and recovery process remain ongoing, so the final canthus height and contour typically stabilize after several months of postoperative recovery.
Individual variation exists in time required for final canthus position stabilization following re-fixation, but commonly 3-6 months or longer recovery period may be required, during which edema reduction and tissue rearrangement continue.
Meanwhile, in this case, the patient expressed desire for additional canthus height adjustment postoperatively, but as the position already reached the maximum level permissible by bone fixation, additional cephalad displacement was deemed anatomically difficult.
Incision Line Scar and Depression Improvement Results
The hypertrophic scarring observed on lateral view and depression appearing superior and inferior to it showed relief through adhesiolysis and additional orbicularis muscle manipulation. However, this method may have more limited correction range compared to direct scar excision with re-suturing, and severe scarring is known to achieve more definitive results with excision and re-suturing approach.
Goals and Limitations of Posterior Epicanthoplasty Revision — Step-by-Step Change Flow
Posterior epicanthoplasty revision aims to improve various problems resulting from existing posterior epicanthoplasty surgery, but clear limitations exist according to surgical permissible range and tissue condition.
The case progression organized step-by-step is as follows:
- Stage 1 (Prior to Posterior Epicanthoplasty Revision): Problems occurring from existing posterior epicanthoplasty causing canthus shape changes
- Stage 2 (Initial Posterior Epicanthoplasty Revision, approximately 7 months ago): Primary revision surgery performed with goal of lateral canthus position correction and scar improvement
- Stage 3 (Prerevision Status): Insufficient canthus height, hypertrophic scarring and depression persisting around incision following primary revision
- Stage 4 (Revision Surgery Performed): Canthus height re-adjusted combining bone and periosteal fixation; scar area relief through adhesiolysis and muscle manipulation
- Stage 5 (Revision Day 9): Cephalad canthus displacement and depression relief confirmed with residual initial edema
The fundamental goal of posterior epicanthoplasty revision (posterior epicanthoplasty reconstruction) is maximally improving complications and shape changes resulting from posterior epicanthoplasty surgery, including incision line scar improvement.
However, clear limitations exist when exceeding revision scope or requiring excessive tissue manipulation. Scar improvement during posterior epicanthoplasty revision may be incomplete, and new scar formation can occur from surgery performed for scar improvement. These general surgical limitations must be confirmed through thorough preoperative consultation.
All surgery involves coexistence of target and limitations. Posterior epicanthoplasty revision is no exception, and differences between patient expectations and actual results can occur even with optimal surgical performance. Sheone Plastic surgery (plastic surgery clinic specializing in eyelid surgery and revision eyelid surgery) provides thorough preoperative 1:1 consultation analyzing current eye condition, explaining surgically permissible range, and presenting anticipated results in advance.
Anatomical Limitations to Know During Posterior Epicanthoplasty Revision
Canthus fixation position can only be displaced within the anatomical range of bone structure, and additional position correction is difficult when exceeding this range.
The most important limiting factor in adjusting canthus (lateral canthus) position during posterior epicanthoplasty or revision surgery is bone fixation permissible range. The appropriate bone location where the canthus ligament can be fixed is anatomically limited, and excessive position displacement exceeding this range renders structural stability difficult to maintain.
In this case, revision surgery achieved 5 mm cephalad displacement on the left and 7 mm on the right, but subsequent additional cephalad fixation desire was deemed to have already reached the upper limit of bone fixation permissible range, making additional correction anatomically difficult.
| Limiting Factor | Content | Clinical Significance |
|---|---|---|
| Bone Fixation Range Limitation | Bone area suitable for canthus fixation is anatomically limited | No additional position correction possible when range exceeded |
| Scar Tissue from Repeated Surgery | Tissue degeneration or adhesion occurring from previous surgery | Elevated revision difficulty, difficult result prediction |
| Hypertrophic Scar Excision Range | Excessive skin excision can cause new deformity | Scar improvement effect limited when excision minimized |
| Individual Tissue Response Variation | Individual differences in scar formation response, tissue elasticity exist | Results can differ despite identical technique |
These anatomical limitations are critical information that all patients planning revision surgery must thoroughly understand before surgery. Honestly discussing discrepancy between current eye status and desired results during consultation is the first step toward satisfactory surgical outcome.
Frequently Asked Questions (FAQ)
If I feel insufficient canthus height after posterior epicanthoplasty revision, is another revision possible?
When canthus height following posterior epicanthoplasty revision appears inadequate, revision surgery can be attempted for some level of additional correction. However, the range for cephalad displacement and fixation of the canthus is limited by anatomical bone structure limitations. When bone fixation permissible range has already been reached, additional position adjustment may be difficult, so thorough consultation with a specialist regarding current fixation status and remaining correctable range before revision surgery is important.
Hypertrophic scarring (raised scar) has developed around the posterior epicanthoplasty revision incision line. Are there improvement methods?
Hypertrophic scar correction methods divide into two main categories. The first is scar removal surgery, directly excising scar tissue and re-suturing, and the second is depression and volume difference relief through adhesiolysis and muscle manipulation without skin excision. Direct excision is known to provide more definitive improvement effect, but non-excision approach may be selected depending on patient preference or tissue condition. Both methods have limitations, and appropriate method determination should follow comprehensive review of current scar characteristics and location plus patient requirements.
How long is the recovery period following posterior epicanthoplasty revision surgery?
Revision surgery requires managing existing scar tissue and altered anatomical structures compared to primary revision, so recovery duration varies individually. Suture removal generally occurs 7-10 days postoperatively, with edema gradually decreasing and tissue stabilizing over subsequent weeks to months. Final canthus position and scar stabilization typically require 3-6 months or longer, during which regular follow-up observation is recommended.
How does posterior epicanthoplasty revision differ from posterior epicanthoplasty revision revision?
Posterior epicanthoplasty revision (posterior epicanthoplasty reconstruction) is primary revision surgery correcting lateral canthus deformity, scarring, canthus shape abnormality and other complications following posterior epicanthoplasty surgery. Conversely, posterior epicanthoplasty revision revision means secondary corrective surgery performed when primary revision fails to adequately achieve target results or new improvement needs arise. Revision addresses already one-or-more-time operated tissue, requiring more meticulous surgical planning, with preoperative thorough information provision and understanding of possible correction range and limitations essential.
When is appropriate timing for posterior epicanthoplasty revision surgery?
Appropriate revision timing is after tissue adequately stabilizes following primary revision, generally considered after minimum 6 months postoperative observation. Evaluating results before edema completely resolves can lead to incorrect assessment of additional surgery necessity. However, timing may differ when complications or functional problems occur, so early consultation with the managing specialist is advisable when abnormal findings appear during postoperative course.
Treatment results can vary depending on individual health status, so consultation with a specialist is essential.