Posters

Boston Keratoprothesis type I (K-PRO I) reconstructive techniques in graft necrosis

Poster Details

First Author: M.Alonso-Agesta SPAIN

Co Author(s):    M. Olivera   M. de la Paz   R. Barraquer              

Abstract Details

Purpose:

Of 117 eyes reviewed with K-PRO I the graft necrosis has been the least frequent postoperative complication. Through three clinical cases, we present the possible surgeries to treat this serious complication.

Setting:

Centro de Oftalmología Barraquer Muntaner 314 Barcelona 08021 Spain

Methods:

Case 1: Stevens-Johnson syndrome with dyschiasis, symbiotic and corneal conjunctivalization, treated with K-PRO I in the left eye (OS). At 6 months after surgery, the patient presented corneal meelting and extrusion of the prosthesis. A replacement of the K-PRO I was performed. Case 2: After failure of several penetrating keratoplasties due to the lateral rectus paralysis and lagoftalmos, a K-PRO I was implanted in both eyes (OU). Case 3: The patient underwent superficial keratectomy and limbus homograft in OU for the congenital aniridia with limbal deficit and opacification. Finally, a K-PRO I in OUimplanted in OU, three years apart

Results:

In the first case, he presented a descematocele that required a partial lamellar tectonic keratoplasty with a conjunctival coating. The second patiente suffered bilateral stromal necrosis. The reconstruction was performed with a biological membrane of collagen. After recurrence of necrosis, we performed a coating with buccal mucosa in the OD and replacement of the graft in the OS. The third patient subsequently presented with bilateral necrosis of the graft and we perform graft replacement in OU The OS required two reinterventions through partial tectonic keratoplasty due to recurrence of stromal necrosis.

Conclusions:

Graft necrosis is a serious complication of K-PRO I. Tectonic keratoplasty can be a good solution for certain cases. The authors state that they have no commercial interest or have received financial support.

Financial Disclosure:

None