Copyright © 2018 Mutaz B. Habal, MD. Unauthorized reproduction of this article is prohibited.
Autologous Free Fat Grafting for Management
of the Facial Contour Asymmetry
Rafael Denadai, MD, Cesar Augusto Raposo-Amaral, MD,
Celso Luiz Buzzo, MD, MSc, and Cassio Eduardo Raposo-Amaral, MD, PhD
Background: The purposes of this study were to report autologous
free fat grafting as the workhorse procedure to augment the facial soft-
tissue envelope and restore facial contour symmetry of patients with
asymmetric facial malformations; to detail the SOBRAPAR Hospital
algorithm for soft-tissue reconstruction of patients with facial contour
asymmetry; and to assess facial symmetry after fat grafting.
Methods: A retrospective analysis of consecutive patients (n ¼ 178)
who underwent fat grafting to restore the facial contour symmetry
according to the SOBRAPAR Hospital algorithm between 2009 and
2016 was conducted. Computerized photogrammetric quantitative
and qualitative facial symmetry analyses were performed.
Results: There were significant (all P < 0.05) postoperative
quantitative facial symmetry enhancement and an overall
qualitative facial symmetry enhancement, with a mean fat graft
procedures per patient of 1.6 0.7, ranging of 1 to 3.
Conclusion: A significant improvement of facial contour symmetry
was obtained in a subset of patients using fat grafting according to
the SOBRAPAR Hospital algorithm.
Key Words: Facial contour asymmetry, free fat grafting,
symmetry
(J Craniofac Surg 2018;00: 00–00)
F
acial contour asymmetry is a frequent condition characterized by a
wide clinical spectrum including malformations of the skeletal
structures and/or surrounding soft tissues in any combination of
dimensions.
1
Treatment of these patients is challenging as often it
requires multiple surgical interventions since early childhood to
address hard- and/or soft-tissue defects.
1–10
Although different
protocols adopting various surgical techniques have been applied
for facial contour asymmetry reconstruction worldwide, no treat-
ment consensus has been established regarding the ideal protocol
including the optimal timing for the procedures and/or type of
surgery.
1–10
The purposes of this study were to report autologous free fat
grafting as the workhorse procedure to augment the facial soft-
tissue envelope and restore facial contour symmetry of patients
with asymmetric facial malformations; to detail the SOBRAPAR
Hospital algorithm for soft-tissue reconstruction of patients with
facial contour asymmetry; and to assess facial symmetry after
fat grafting.
METHODS
A retrospective observational study was performed on consecutive
patients diagnosed with facial contour deformities by the SOBRA-
PAR multidisciplinary craniofacial team, and who underwent autol-
ogous free fat grafting between 2009 and 2016. Demographic data
(age, gender, race, and body mass index [kg/m
2
]), disease-related
data (diagnosis and previous craniofacial bone surgery at the site
that received fat grafting), surgical-related data (donor site, recipi-
ent site, and grafted volume), and outcome data (computerized
photogrammetric facial symmetry analyses and complications)
were collected through medical records, clinical photographs,
and interviews with all patients. National body mass index cut
off points
11
were adopted to divide pediatric patients into under-
weight, normal weight, or overweight according to their age and
gender, whereas the widely used World Health Organization cut off
points of 18.5 and 25 kg/m
2
were adopted for adult stratification.
Patients with previous craniofacial soft-tissue augmentation and/or
incomplete medical records/follow-up (< 12 months after the
reported surgeries) were excluded.
All subjects were enrolled upon a consent form signed by the
patients or their parents, in accordance with the Helsinki Declara-
tion of 1975, as amended in 1983. Institutional review board
approval was granted for this study.
The SOBRAPAR Hospital Algorithm for
Soft-Tissue Reconstruction of Facial Contour
Asymmetry
In the 38 years of the SOBRAPAR Hospital, craniofacial bone and
soft-tissue surgeries have been routinely performed according to strict
selection criteria, patient expectations, and always respecting the
limits of reconstruction. We act as a reference center for the treatment
of patients with a broad spectrum of craniofacial deformities from
numerous regions of Brazil, including underprivileged areas. We treat
patients with different ages at the presentation with (or with no)
previous surgical treatments according to different protocols. This
poses challenging obstacles as our surgical approach should be
adapted to each particular clinical situation. As new challenging
clinical situations appear, we modify/adapt the algorithm to incorpo-
rate such patients into our therapeutic rationale, always trying to keep
the individuality of each clinical presentation. In addition, our
reconstructive treatment algorithm has been shaped as the knowledge
and the technical modifications have arisen and their effectiveness has
been proven. The protocol described here should therefore not be
regarded as single or absolute.
Based on our previous experiences
12–15
and evidence-based
data,
1–10,16–20
the SOBRAPAR algorithm has been focused on the
achievement of facial contour symmetry as early as possible with no
From the Institute of Plastic and Craniofacial Surgery, SOBRAPAR
Hospital, Campinas, Brazil.
Received October 3, 2017.
Accepted for publication December 20, 2017.
Address correspondence and reprint requests to Rafael Denadai, MD,
Institute of Plastic and Craniofacial Surgery, SOBRAPAR Hospital, Av.
Adolpho Lutz, 100, Caixa Postal: 6028, Campinas, Sa ˜o Paulo CEP:
13084-880, Brazil; E-mail: denadai.rafael@hotmail.com
The authors report no conflicts of interest.
Copyright
#
2018 by Mutaz B. Habal, MD
ISSN: 1049-2275
DOI: 10.1097/SCS.0000000000004369
ORIGINAL ARTICLE
The Journal of Craniofacial Surgery
Volume 00, Number 00, Month 2018 1