Use of biomaterials in the reconstruction of posterior lamellar eyelid defects: a systematic review and meta-analysis.

Eyelid defects can occur secondary to tumours, trauma, burns, and congenital factors. Among the most challenging aspects of eyelid reconstruction is the rebuilding of a tarsal substitute due to its delicate and multi-layered tissue composition. Attempts to use biomaterials for posterior lamellar reconstruction are intended to provide an alternative to traditional autograft reconstructions. In this review, we aimed to assess the types of biomaterials used for the reconstruction of the posterior lamella associated with eyelid defects and the associated clinical outcomes. A literature search was conducted on Pubmed, Prospero, Dynamed, DARE, EMBASE, and COCHRANE databases. A total of 15 articles fulfilled the inclusion criteria, and 129 patients with 142 eyelids reconstructed, using artificial grafts, were included in the review. Acellular dermis allograft (AlloDerm®, LifeCell) (n = 49) was the most common artificial graft used. A meta-analysis was performed, which demonstrated a pooled success rate of artificial grafts of 99% (95% CI 96-100, p = 0.05; I = 40%, total complications seen 39% (95% CI 96-100, p = 0.05; I = 40%) and re-operation rates of 5.6% (n = 8). The biomaterials used demonstrated an overall success rate of 99%, which is similar if not greater than that reported with the use of traditional autograft reconstruction techniques, with similar complications and fewer re-operations than autografts. This suggests that clinicians should consider the clinical use of artificial grafts for posterior lamellar reconstruction.