Background: Total lower eyelid defect after eyelid malignancy excision poses a challenge in the surgical management of total lower eyelid reconstruction. We describe a technique of reconstructing total lower eyelid defect, using a skin flap and the residual lower forniceal conjunctiva.
Methods: A retrospective case series review. Five patients had undergone lower eyelid basal cell carcinoma excision. A 3–4 mm margin excision was performed and specimens were sent for paraffin section histological examination. Reconstruction was performed at the same stage, using a skin flap and the residual lower forniceal conjunctiva. A full thickness skin flap is raised from the lateral cheek, with its base at the lateral canthus. Subcutaneous tissues are not included in the skin flap. The lower forniceal conjunctiva is released from the inferior retractors and advanced superiorly to cover the inner surface of the skin flap. The skin flap is transposed to cover the lower eyelid defect and sutured to the soft tissues at the medial end of the defect. The advanced forniceal conjunctiva is sutured to the superior edge of the skin flap forming the new mucocutaneous junction of the eyelid margin.
Results: There were 4 females and 1 male, with a mean age of 74 years (range, 68–80 years). Histological clearance was achieved in all cases. None of the patients developed lagophthalmos, symblepharon or dry eye symptoms. None of the patients required any further revision surgery.
Conclusions: Total lower eyelid defects can be reconstructed using the residual lower fornix conjunctiva and a skin flap.
We describe a technique of reconstructing total lower eyelid defect, using a skin flap and the residual lower forniceal conjunctiva. Total lower eyelid defect poses a challenge in the surgical management of total lower eyelid reconstruction. We present the following case series in accordance with the AME Case Series reporting checklist (available at http://dx.doi.org/10.21037/aes-21-2).
Retrospective review of patients, who underwent lower eyelid basal cell carcinoma excision with total loss of lower eyelid tissue, was conducted. Eyelid reconstruction was performed as described below, under local anaesthesia (Figure 1). A full thickness skin flap is raised from the lateral cheek, with its base at the lateral canthus. Subcutaneous tissues are not included in the skin flap. The length of the flap is measured, to ensure that it will fill the horizontal defect of the lower eyelid. For larger defects extending onto the cheek, a larger width skin flap is fashioned to fill the defect. The width of the flap is kept at 4mm or more to mimic the natural height of the lower eyelid in patients where the excision had resulted in loss of eyelid tissue only. The lower forniceal conjunctiva is released from the inferior retractors and advanced superiorly to cover the inner surface of the skin flap. The skin flap is transposed to cover the lower eyelid defect and sutured to the soft tissues at the medial end of the defect. The advanced forniceal conjunctiva is sutured to the superior edge of the skin flap with 6/0 Vicryl, forming the new mucocutaneous junction of the eyelid margin. A bandage contact lens is placed on the cornea as a precaution and is removed 3 days post-operatively.
The study conformed to the provisions of the Declaration of Helsinki (as revised in 2013). Written informed consent was obtained from all patients. Ethical approval was not required because this was a retrospective review and was performed as part of our organisational audit requirements. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee(s).
Five patients underwent lower eyelid basal cell carcinoma excision with total loss of lower eyelid tissue. There were 4 females and 1 male, with a mean age of 74 years (range, 68–80 years). Histological clearance was achieved in all cases. Mean follow up was 28 months (range, 15–44 months). None of the patients developed lagophthalmos, symblepharon or dry eye symptoms. None of the patients required any further revision surgery.
A patient who had cutaneous basal cell carcinoma involving the entire left lower eyelid (Figure 2A). There was a total lower eyelid defect after surgical excision of the basal cell carcinoma (Figure 2B). The lower eyelid was reconstructed (Figure 1) and this was the 1 week after reconstruction photo (Figure 2C).
Another patient with ill-defined basal cell carcinoma involving the right lower eyelid (Figure 2D). There was near total lower eyelid defect after Mohs micrographic surgery (Figure 2E). This was reconstructed (Figure 1) and this photo illustrates the reconstructed eyelid at 1 year follow-up (Figure 2F).
Large lower eyelid defects with loss of greater than 50% of eyelid tissue are usually repaired using tarso-conjunctival flap (Hughes flap) (1) or a modification of this flap. Auricular cartilage or hard palate grafts have also been used as a substitute for the tarsus. The advantage of our technique is that it avoids tissue recruitment (from eyelids, ear or hard palate) and is a one stage procedure (unlike a Hughes flap). In addition, none of the patients developed eyelid margin erythema post-operatively, which is a relatively common occurrence following Hughes procedure. Skippen and colleagues reported a similar technique, where they used full thickness skin graft for the anterior lamella reconstruction and advanced the forniceal conjunctiva for the posterior lamella repair (2). In our technique, we employ a skin flap instead of a skin graft. The skin flap is anchored at the lateral canthus to provide an upward vector and also has its own blood supply.
The drawback of not substituting the lost tarsal plate is that there can be increased inferior scleral show, due to lack of firm middle lamella support, as was seen in 2 of our patients (Figure 2F). Patients should be informed of the possibility of increased inferior scleral show. This technique cannot be performed when there is insufficient residual forniceal conjunctiva to provide coverage for the entire posterior lamella. All patients in this case series were satisfied with the surgical outcome and none required further surgical intervention (Figure 2C,F).
Total lower eyelid defects can be reconstructed using the residual lower fornix conjunctiva and a skin flap.
