# Comparison of Reconstructive Materials in Paediatric Orbital Fractures: A Systematic Review

## TL;DR

This systematic review compares materials used in reconstructing pediatric orbital fractures, highlighting outcomes like diplopia and enophthalmos.

## Contribution

The study provides a comprehensive comparison of reconstructive materials in pediatric orbital fractures using systematic review methods.

## Key findings

- Polymers and alloplasts showed lower rates of late postoperative diplopia compared to allografts and xenografts.
- Enophthalmos was highest in the autologous group but was only reported in a minority of studies.
- Infection, implant removal, and return to theatre were low across all material types.

## Abstract

Paediatric orbital fractures require careful reconstruction to prevent long-term functional and aesthetic sequelae. Material selection is critical due to the anatomical and developmental considerations unique to children. Comparative data to guide decision making remain sparse and inconclusive. A systematic search was conducted in PubMed, Scopus, Web of Science, and Embase (through February 2025), following Preferred Reporting Items for Systematic Review and Meta-analyses (PRISMA) guidelines. Studies reporting outcomes and/or complications associated with implant materials used in the reconstruction of paediatric orbital fractures were included. Outcomes included postoperative diplopia, enophthalmos, restriction of eye movements, removal of material, and return to theatre (RTT). In total, 54 studies encompassing a total of 562 patients and 563 implants were included. Polymers (n = 169), alloplasts (n = 167) and autologous (n = 166) implants were the most commonly used reconstructive material. Late postoperative diplopia occurred in 7% of polymers (12/169), 6% of alloplasts (10/167), 29% of allografts (6/21), 24% of xenografts (6/25) and 33% of metals (2/6). Reported enophthalmos was highest in the autologous group (8%) but was only reported in 34 of the 54 studies. Infection, removal of implant material and RTT were low across all groups (1–4%). No donor site morbidity was reported. Robust studies with standardised outcomes and adequate follow-up are needed to inform evidence-based material selection in paediatric orbital reconstruction.