Please cite this article in press as: Aggarwal H, et al. Ocular rehabilitation following socket reconstruction with amniotic
membrane transplantation with failed primary hydroxyapatite implant post enucleation. Contact Lens Anterior Eye (2014),
http://dx.doi.org/10.1016/j.clae.2014.09.003
ARTICLE IN PRESS
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Contact Lens & Anterior Eye
jou rn al h om epa ge : w ww.e l sevier.com/locate/clae
Case report
Ocular rehabilitation following socket reconstruction with amniotic
membrane transplantation with failed primary hydroxyapatite
implant post enucleation
Himanshi Aggarwal
∗
, Pradeep Kumar, Raghuwar Dayal Singh,
Pooran Chand, Habib A. Alvi
Department of Prosthodontics, Faculty of Dental Sciences, King George’s Medical University UP, Lucknow, Uttar Pradesh, India
a r t i c l e i n f o
Article history:
Received 8 May 2014
Received in revised form 28 August 2014
Accepted 11 September 2014
Keywords:
Anophthalmic socket reconstruction
Enucleation
Intra-orbital implant
Ocular prosthesis
a b s t r a c t
There are several clinical situations that require enucleation in children, with retinoblastoma being the
most common. Intra-orbital implants are routinely placed in children at the time of initial surgery to
provide motility and cosmesis in addition to adequate orbital volume. Current practice employs intra-
orbital implants made of nonporous silicone, hydroxyapatite, or porous polyethylene. Complications are
usually minimal with these implants but they do occur. The purpose of this clinical report is to describe
the rehabilitation of a pediatric patient with failed primary intra-orbital coralline hydroxyapatite implant
post enucleation, who was successfully fitted with custom ocular prosthesis following secondary socket
reconstruction with amniotic membrane transplantation after removal of infected implant.
© 2014 British Contact Lens Association. Published by Elsevier Ltd. All rights reserved.
1. Introduction
Removal of an eye for treatment of ocular disease was first
described by Bartisch in 1583 [1]. The modern form of this operation
was introduced in 1841 by Farrell and Bonnet, and in 1885, Mules
placed the first intra-orbital implant after evisceration. A year later,
Frost described the utility of intra-orbital implant placement after
enucleation surgery. Enucleation in a child may result in retarded
orbital growth [2]. So following enucleation, primary reconstruc-
tion of the socket is usually done with intra-orbital implants so
that the potential for contracture and volume deficit is reduced and
the best cosmetic results are achieved in addition to stimulation of
orbital growth [3,4]. Various intra-orbital implant configurations
are available. Different materials may be used to create intra-orbital
implants, including cartilage, bone, fat, cork, rubber, gold, sil-
ver, silk, wool, aluminum, ivory, petroleum jelly, acrylics, silicone,
quartz, glass, titanium, and porous materials such as polyethylene
and hydroxyapatite (HA) [1]. Current practice employs intra-orbital
implants made of nonporous silicone, hydroxyapatite, or porous
polyethylene. The intact extraocular muscles are attached either to
the implant or to the wrapping material placed around the implant.
∗
Corresponding author at: Room No. 404, E Block, Gautam Buddha Hostel, KGMU,
Lucknow, India. Tel.: +91 9369610205.
E-mail address: drhimanshi84@gmail.com (H. Aggarwal).
The normal innervations of the muscles move the artificial eye in
coordination with the healthy eye so that some degree of normal
motility is preserved [3].
Hydroxyapatite, a porous material derived from reef-building
coral of genus Porites, was introduced as a buried intra-orbital
implant by Dr. Arthur Perry in 1985 [5–7]. The major advantage
of this implant is its superior biocompatibility and proclivity to
become fibrovascularly integrated with the residual muscles and
orbital tissues [6,8,9]. One major disadvantage of hydroxyapatite
is that the implant must be covered with wrapping material such
as donor sclera or donor or autogenous fascia lata because direct
suturing to the hydroxyapatite is not possible [10]. Theoretically,
the integration of the implant into host orbital tissues reduces
the risk of migration, extrusion, and infection in the post-surgical
period [11]. However, hydroxyapatite being an alloplastic intra-
orbital implant may be associated with potential complications,
including exposure, infection and extrusion [1,12,13].
Spontaneous healing of exposed porous implants is relatively
uncommon. So, many exposed porous implants are salvaged with
secondary repair with patch grafts. However, cases unamenable to
conservative management require may implant removal [14]. Fol-
lowing implant removal, a stable socket with adequate forniceal
depth must be established by increasing the surface area with the
use of grafts [15]. The purpose of this clinical report is to describe
the rehabilitation of a pediatric patient with failed primary intra-
orbital coralline hydroxyapatite implant post enucleation, who was
http://dx.doi.org/10.1016/j.clae.2014.09.003
1367-0484/© 2014 British Contact Lens Association. Published by Elsevier Ltd. All rights reserved.