Transcript No Slide Title

MEDPOR® Surgical Implants
For
Craniofacial Reconstruction and Augmentation
Properties and Handling Techniques
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© 2002, Porex Surgical, Inc.
Properties of MEDPOR Biomaterial
 Biocompatible
 Porous Polyethylene
 Interconnecting omni-directional pores
 Soft tissue integration
 Contours in hot sterile saline
 Stabilize with suture, wire or screw
 Individual sterile packaging
© 2001 Porex Surgical Inc.
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© 2001 Porex Surgical Inc.
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The open interconnecting and multidirectional pore
structure of the porous polyethylene is clearly visible in
this Scanning Electron Microscope slide.
Physical Characteristics
 Porous high density polyethylene
 Sheets, blocks, spheres
 Average pore size: > 100 microns
 Anatomical shapes
 Contains no additives
 Customized Shapes
 Maintains shape and form
 Biocompatable
 White in color
© 2001 Porex Surgical Inc.
No. 408-010702-02
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MEDPOR Implants can be stacked and sutured together.
© 2001 Porex Surgical Inc.
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The open pore structure of MEDPOR Implants allows for
vascularization. Vascularized porous implants are
reported to be less susceptible to late migration,
exposure and infection.
Clinical Results
 Good stabilization
 Minimal or no bone resorption under the implant
 Minimal instance or absence of inflammatory reaction
 Low infection rate
 Implant well vascularized with healthy connective tissue
© 2001 Porex Surgical Inc.
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Tissue ingrowth
© 2001 Porex Surgical Inc.
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This histology slide shows excellent ingrowth of
connective tissue into the center of the implant. The
white areas are the polyethylene structure.
Tissue ingrowth
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Additional example of excellent in-growth of
connective tissue into the center of the implant. The
off-white areas are the polyethylene structure.
Contradictions
 Areas lacking adequate tissue coverage
 Should not be used in infected areas
 Should not be used in patients with systemic disorders
 Should not be used in compromised tissue (poor vascularity)
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Surgical Applications
 Cranial defects
 Mandibular angle augmentation
 Chin, malar, nasal augmentations
 External ear reconstruction
 Orbital enucleations and
eviscerations
 Orbital floor, rims and walls
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Locations for MEDPOR
Implants
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Locations for MEDPOR
Implants
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Locations for MEDPOR
Implants
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Shaping MEDPOR Implants
 Sheets and thin blocks can be cut with scissors
 Larger blocks can be shaped with a scalpel
 A cutting burr may be used
 If a burr is used, open pores with a scalpel
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Shaping MEDPOR Implants
MEDPOR sheets cut easily with a pair of surgical scissors.
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Shaping MEDPOR Implants
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All MEDPOR shapes are readily customized by the surgeon
to fit the patient’s individual needs.
Shaping MEDPOR Implants
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A fine thin edge can be cut without the product crumbling.
The porous implant material should not be placed on
surgical drapes or other fibrous material that may shed
particles on the implant.
Contouring MEDPOR Implants
 Always maintain sterile environment
 Heat saline to boiling point (100º C/ 212º F) in autoclave
 Bring saline to sterile field
 Place implant in saline and submerse implant for several minutes
 Bend implant to desired shape while hot
 Allow to cool
 Repeat if necessary
© 2001 Porex Surgical Inc.
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Contouring MEDPOR Implants
© 2001 Porex Surgical Inc.
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Implants can be soaked in a hot sterile saline bath for
several minutes. Saline temperature must be 90° to 95° C
Contouring MEDPOR Implants
© 2001 Porex Surgical Inc.
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Using powder free, double gloves you can modify the
shape of the implant.
Contouring MEDPOR Implants
Example of modifying the shape of a heated 9.5 mm block.
© 2001 Porex Surgical Inc.
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MEDPOR Customized Implants
Example of a MEDPOR Customized Implant and Surgical Model
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Implants are provided STERILE
DO NOT RESTERILIZE
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Handling MEDPOR Implants
 Leave implant in sterile package until ready to use
 Rinse gloves thoroughly
 Place implant on carving block or in a basin of antibiotic solution or sterile
saline
 Do NOT place on surgical drapes
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MEDPOR Biomaterial Implants
Examples of MEDPOR Implants
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MEDPOR Biomaterial Implants
Examples of MEDPOR Implants
© 2001 Porex Surgical Inc.
No. 408-010702-02
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MEDPOR Biomaterial Implants
Examples of MEDPOR Implants
© 2001 Porex Surgical Inc.
No. 408-010702-02
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MEDPOR Biomaterial Implants
Examples of MEDPOR Implants
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No. 408-010702-02
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Porex Surgical, Inc.
Cautions

Surgeons should utilize proper surgical techniques and their clinical experience to
determine appropriate surgical procedures

Sound surgical judgment should be used in the selection, shaping, handling, and
implantation of MEDPOR Surgical Implants

Product use instructions for MEDPOR Surgical Implants are found in the labeling
insert included in each product package

MEDPOR is a registered trademark of Porex Surgical Inc.

Copyright 2001, Porex Surgical Inc. – all rights reserved

Unauthorized use of copyrighted materials, logos, and tradenames, or copying for
any purpose, is prohibited by US and International law

POREX SURGICAL service mark is owned by or used under the license of Porex
Corporation
© 2001 Porex Surgical Inc.
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 Manufactured by:
Porex Surgical Inc.
15 Dart Road
Newnan, GA 30265-1017 U.S.A.
1-678-479-1610 / 1-800-521-7321 US Toll Free
FAX 1-678-423-1435
© 2001 Porex Surgical Inc.
No. 408-010702-02
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