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Low-cost three-dimensional printed orbital template-assisted patient-specific implants for the correction of spherical orbital implant migration.

Abstract：

Purpose:To describe the outcomes of a patient-specific implant (PSI), fabricated using a three-dimensional (3D) printed orbital template and placed in the basin of the inferior orbital fissure to correct inferotemporally migrated spherical orbital implant. Methods:This is a single-center, prospective, consecutive, interventional, case series of six patients, with non-porous, spherical, orbital implant migration that underwent implant recentration surgically with a novel technique. Migration was subclassified either as decentration that did not affect the prosthetic retention or as displacement that affected the prosthetic retention in the eye socket. Only implant displacements were treated. The primary outcome measure was centration of the implant clinically and radiologically, with ability to retain the prosthesis. Results:At a mean follow-up of 21 months, all six orbital spherical implants remained centered. There were no cases of extrusion, exposure, or migration of either implants. There were no cases of PSI displacement. Additional procedures to optimize the aesthetic outcome of the customized ocular prosthesis (COP) required were simultaneous fornix formation suture in three patients, subsequent fornix formation with mucus membrane graft in two patients, and levator resection and sulcus hyaluronic acid gel injection in one patient each. The mean PSI implant weight was 2.66 ± 0.53 g. The mean COP weight was 2.2 ± 0.88 g postoperatively. The median patient satisfaction with the procedure was 9 on 10. Conclusion:A 3D printing-assisted PSI placed in the basin of the inferior orbital fissure allows recentration of the migrated implant over a follow-up of 21 months without complications.

journal_name

Indian J Ophthalmol

journal_title

Indian journal of ophthalmology

authors

Dave TV,Tiple S,Vempati S,Palo M,Ali MJ,Kaliki S,Naik MN

doi

10.4103/ijo.IJO_472_18

subject

Has Abstract

pub_date

2018-11-01 00:00:00

pages

1600-1607

issue

eissn

0301-4738

issn

1998-3689

pii

IndianJOphthalmol_2018_66_11_1600_244062

journal_volume

pub_type

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Low-cost three-dimensional printed orbital template-assisted patient-specific implants for the correction of spherical orbital implant migration.