Literature Review
Medpor® Biomaterial and Porex Surgical Products
Midface - Reconstructive
and Aesthetic
Golshani, S., Zhou, Z.Y. and Gade, P. "Applications Of MEDPOR®
Porous Polyethylene In Facial Bone Augmentation", American Journal
of Cosmetic Surgery, Vol. 11, pp 105-109 (1994)
The experience of using the MEDPOR® porous polyethylene implant
in elective facial bone augmentation and the reconstruction of major
facial burns and posttraumatic deformities is reported. Implants
were placed in 68 patients for augmentation in the chin (15), malar
area (11), nasal dorsum (20), orbit (19) and cranium (23). The etiologies
of the deformities were related to trauma (40), burns (17), aesthetic
(8) and congenital (3). Contour and symmetry were established with
ease and remained unchanged over time; long-term follow-up of patients
with MEDPOR implants revealed natural maintenance of the facial
contours over the malar or chin prominence. Rapid soft-tissue ingrowth
resulted in a relative fixation of the implant and excellent results
were obtained in the chin, malar region, orbit, nasal dorsum and
in the repair of cranial malformations or defects. Other than one
malar implant which became infected and had to be removed after
five weeks, no other implant-related complications occurred. Furthermore,
no subsequent bone resorption, implant migration, or implant exposure
was observed in this patient series. It is concluded that MEDPOR
implant is a dependable material for facial reconstruction. Its
remarkable stability, conductivity for tissue ingrowth and ease
of use allow for an accurate and reliable establishment of contour
and symmetry in the craniofacial skeleton.
This abstract is provided for educational purposes only. It
contains information about cleared uses of the product. It may contain other
potential uses not cleared by the Food and Drug Administration and not advocated
by the manufacturer. The uses and opinions expressed within the article are
those of the author derived from his or her personal experience with the product.
For additional information on cleared product specific indications and to request
a copy of the cleared labeling please contact the manufacturer's customer care
department.
Epker, B. N. "Esthetic Maxillofacial Surgery", Malvern, PA:
Lea & Febiger (1994)
The comprehensive evaluation, diagnosis and surgical treatment
of both skeletal and soft tissue maxillofacial esthetic abnormalities
is discussed. Indications and surgical techniques for the use of
MEDPOR® are described specifically for the augmentation of the
mandibular angles and inferior mandibular borders (chapter two)
and of the cheek (chapter four). Included are step-by-step procedures
for determining appropriate implant configuration, as well as implant
shaping, insertion, placement, modification and stabilization. It
is suggested that MEDPOR implants are preferable to other alloplastic
materials for these indications because they do not have a complete
memory, are readily modifiable at surgery, are porous (resulting
in tissue ingrowth) and are of sufficient strength to be screw-stabilized.
This abstract is provided for educational purposes only. It
contains information about cleared uses of the product. It may contain other
potential uses not cleared by the Food and Drug Administration and not advocated
by the manufacturer. The uses and opinions expressed within the article are
those of the author derived from his or her personal experience with the product.
For additional information on cleared product specific indications and to request
a copy of the cleared labeling please contact the manufacturer's customer care
department.
Wellisz, T. "Clinical Experience With The MEDPOR® Porous Polyethylene
Implant", Aesthetic Plastic Surgery, Vol. 17, pp 339-344 (1993)
A clinical series in which 116 MEDPOR® implants were placed
in 70 patients over a 4-year period is reported. Implants were used
for the chin, malar area, nasal reconstruction, ear reconstruction,
orbital reconstruction and the correction of craniofacial contour
deformities. Many of these implants were placed in areas considered
problematic, such as areas of thin soft tissue coverage, extensive
scarring and severe facial burns. Nine complications occurred including
seven exposures, all of which occurred in areas of minimal soft
tissue coverage. Because of rapid vascularization of the implants
only two implants were removed, both from the columella.This paper
provides recommendations and helpful hints on how to most effectively
use the implant in various locations. The author concludes that
the MEDPOR implant is an excellent alternative to existing implant
materials.
This abstract is provided for educational purposes only. It
contains information about cleared uses of the product. It may contain other
potential uses not cleared by the Food and Drug Administration and not advocated
by the manufacturer. The uses and opinions expressed within the article are
those of the author derived from his or her personal experience with the product.
For additional information on cleared product specific indications and to request
a copy of the cleared labeling please contact the manufacturer's customer care
department.
Wellisz, T. and Dougherty, W. "The Role Of Alloplastic Skeletal
Modification In The Reconstruction Of The Facial Burn", Annals
of Plastic Surgery, Vol. 30, pp 531-536 (1993)
The experience with the use of MEDPOR® implants in facial burn
reconstruction was reviewed. The factors that make a structural
reconstruction difficult are: poor vascularity and compliance of
the scar tissue, extreme contractile forces of the scar and unstable
skin coverage. The use of an alloplast in the setting of facial
burn scars may be one of the greatest challenges for an implant
material. A total of 57 consecutive implants were placed in 24 patients
with facial burns. Implants were used for the chin, the nose, the
malar region and as an ear framework. Although four implants became
exposed and one was thought to become infected, only one of the
implants was removed. There were no other implant related complications.
The authors conclude that MEDPOR implants offer a promising solution
for the complex reconstructive problem of using an alloplast in
the environment of a facial burn.
This abstract is provided for educational purposes only. It
contains information about cleared uses of the product. It may contain other
potential uses not cleared by the Food and Drug Administration and not advocated
by the manufacturer. The uses and opinions expressed within the article are
those of the author derived from his or her personal experience with the product.
For additional information on cleared product specific indications and to request
a copy of the cleared labeling please contact the manufacturer's customer care
department.
Romano, J.J., lliff, N.T. and Manson, P.N. "The Use Of MEDPOR®
Porous Polyethylene Implants In 140 patients With Facial Fractures",
Journal of Oral Maxillofacial Surgery, Vol. 4, pp 142-147
(1993)
A multi-center experience using MEDPOR® implants in 140 patients
with facial fractures is presented. The implants were used in 71
patients with acute orbitozygomatic injuries, 24 patients with acute
Le Fort injuries, 33 patients with delayed orbitozygomatic reconstructions
and in 12 patients for delayed onlay augmentation.
In patients with acute injuries, the implant was placed in the
orbit, exposed to open facial sinuses. Despite the use of this implant
for acute trauma reconstruction, there was only one instance of
implant infection requiring removal and no implant migration or
exposure.
It was concluded that MEDPOR implant has an advantage over other
materials because it is a highly biocompatible material that exhibits
rapid vascular and tissue ingrowth and is easy to contour to obtain
a precise three-dimensional construction.
This abstract is provided for educational purposes only. It
contains information about cleared uses of the product. It may contain other
potential uses not cleared by the Food and Drug Administration and not advocated
by the manufacturer. The uses and opinions expressed within the article are
those of the author derived from his or her personal experience with the product.
For additional information on cleared product specific indications and to request
a copy of the cleared labeling please contact the manufacturer's customer care
department.
Carr, N.J., Rosenberg, A.E. and Yaremchuk, M.J. "Chondromyxoid
Fibroma Of The Zygoma", Journal of Craniofacial Surgery, Vol. 3,
pp 217-222 (1992)
An unusual case of a chondromyxoid fibroma involving the zygoma
is presented. Enbloc resection of the zygoma was performed followed
by immediate reconstruction using a MEDPOR® implant. Follow-up
at 18 months revealed restoration with no evidence of recurrence.
This abstract is provided for educational purposes only. It
contains information about cleared uses of the product. It may contain other
potential uses not cleared by the Food and Drug Administration and not advocated
by the manufacturer. The uses and opinions expressed within the article are
those of the author derived from his or her personal experience with the product.
For additional information on cleared product specific indications and to request
a copy of the cleared labeling please contact the manufacturer's customer care
department.
Bikhazi, H.B. and Van Antwerp, R. "The Use Of MEDPOR® In Cosmetic
And Reconstructive Surgery: Experimental And Clinical Evidence",
S. Stucker, Editor, Plastic and Reconstructive Surgery of the
Head and Neck", C. V. Mosby, pp 271-273 (1990)
The authors present their experience with MEDPOR® implants
in 30 patients over a three-year period. There were no complications.
Serial cephalograms taken in five patients with MEDPOR chin implants
revealed no bone erosion or implant migration over a one-year period.
The authors relate their experience with two other patients with
Proplast chin implants, in whom the Proplast showed a foreign body
reaction, delamination and no ingrowth. The authors state that the
bone resorption seen with silicone and Proplast may not occur with
MEDPOR chin implants.
This abstract is provided for educational purposes only. It
contains information about cleared uses of the product. It may contain other
potential uses not cleared by the Food and Drug Administration and not advocated
by the manufacturer. The uses and opinions expressed within the article are
those of the author derived from his or her personal experience with the product.
For additional information on cleared product specific indications and to request
a copy of the cleared labeling please contact the manufacturer's customer care
department.
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