Total orbital exenteration with temporalis muscle transfer and secondary healing

Abstract Objective To evaluate the outcomes of orbital exenteration with temporalis muscle flap repair of the socket and secondary healing of the anterior surface of the flap in ocular, conjunctival, and eyelid malignancies. Design Retrospective single-centre study. Participants Consecutive patients who underwent total exenteration for malignancy with temporal muscle flap repair of the socket between December 2009 and January 2016. Methods We report the outcomes of this surgical technique in terms of healing without fistula formation and time to epithelialization. Results Twenty-nine patients underwent surgery using this technique. Diagnoses consisted of 18 conjunctival melanomas, 2 choroidal melanomas, 6 squamous cell carcinomas, 2 sebaceous cell carcinomas, and 1 basal cell carcinoma. Mean age at surgery was 70.7 years and mean follow-up was 27.4 months. On histological analysis, tumour excision was complete in 25 patients, of whom 3 had an orbital recurrence after exenteration (3 conjunctival melanomas). Four patients had incomplete tumour excision, of whom 3 underwent postoperative orbital radiotherapy with no subsequent orbital recurrences. Complete epithelialization of the socket occurred in mean 7.9 weeks (range 2–16 weeks). Flap necrosis occurred in 1 patient after postoperative radiotherapy (with sino-nasal fistula formation); 2 other patients developed sino-orbital fistulas. Conclusion After orbital exenteration, spontaneous epithelialization of the socket may take up to several months. Use of a temporalis muscle flap can reduce the duration of socket healing postoperatively, even if left to heal by secondary intention. This may facilitate early postoperative radiotherapy when indicated. Aesthetic results are acceptable and local surgical complications are rare.