Maxillofacial reconstruction with Medpor porous polyethylene implant: a case series study.

Objectives: The role of alloplastic materials in maxillofacial reconstruction is still controversial. Determining the utility of porous, high-density, polyethylene implants as a highly stable and flexible, porous alloplast, with properties such as rapid vascularization and tissue ingrowth, is crucial in cases of maxillofacial deformities and aesthetic surgery.

Materials And Methods: Thirty high-density porous polyethylene implants were implanted in 16 patients that had been referred to a private office over a three-year period.

Solid Implants in Facial Plastic Surgery: Potential Complications and How to Prevent Them.

Allogenic implants are an effective alternative to autologous grafts in the reconstruction of facial defects. These implants are used to reconstruct a variety of bony and soft-tissue defects, including the frontal and temporal regions; internal orbit; infraorbital rim; malar, paranasal, and nasal regions; mandible; and chin. In comparison to their autologous counterparts, alloplastic materials are more readily available, lack donor-site morbidity, decrease surgical time and cost, and still have relatively good postoperative tissue tolerance.

Facial reconstruction using porous high-density polyethylene (medpor): long-term results.

Unlabelled: Medpor is a biocompatible, porous, high-density polyethylene implant material used as a skeleton substitute. During the last two decades, it has been successfully applied for aesthetic contour enhancement and at reconstruction of the facial skeleton. Reports on the long-term host tissue tolerance of Medpor are sparse.

A paradigm shift in correcting medial orbital fracture-related enophthalmos: volumetric augmentation through a lateral approach.

Background: Posttraumatic enophthalmos resulting from medial orbital wall fractures presents a complex challenge. Access to this area through traditional incisions is limited, making visualization of the fracture site difficult. This can be ameliorated by the transcaruncular approach, but with the potential for complications both with access and with reconstructive materials.

A method for visualizing high-density porous polyethylene (medpor, porex) with computed tomographic scanning.

Background: Medpor (Porex Surgical, Inc, Newnan, GA) is composed of porous polyethylene and is commonly used in craniofacial reconstruction. When complications such as seroma or abscess formation arise, diagnostic modalities are limited because Medpor is radiolucent on conventional radiologic studies. This poses a problem in situations where imaging is necessary to distinguish the implant from surrounding tissues.

An evaluation of the effectiveness of different techniques for intraoperative infiltration of antibiotics into alloplastic implants for use in facial reconstruction.

Background: Reconstruction in the head and neck can be difficult owing to the size of the defect or characteristics of the tissue that needs to be replaced. Facial wounds or reconstruction sites can be subject to contamination, thereby risking infection of any implanted material even under ideal circumstances. Particular areas of concern are sites where minimizing the bacterial contamination prior to placing an implant is difficult (eg, the oral cavity and internal nose).

Aesthetic microtia reconstruction with Medpor.

The complex architecture of the auricle makes it one of the most challenging structures for the reconstructive surgeon to re-create. Overlying the ear's unique cartilage framework are layers of varied soft tissues forming a three-dimensional organ, which is distinctively positioned on the head. Arguably, the most challenging auricle to reconstruct is third-degree microtia due to a near-total absence of native tissue and a need for lifelong durability of the reconstruction.

[Clinical study on external ear reconstruction using expanded postauricular flap and medpor framework].

Objective: To explore the feasibility of applying porous high density polyethylene (Medpor) as framework for auricle reconstruction of congenital or acquired auricular defects.

Methods: From February 1999 to February 2004, 61 patients suffering from congenital or acquired auricular defects underwent auricle reconstruction with Medpor framework after expanding postauricular skin. Among them, there were 38 males and 23 females, aging from 5 to 61 years.

Modulation of tissue ingrowth into porous high-density polyethylene implants with basic fibroblast growth factor and autologous blood clot.

Objective: To investigate the effect of direct application of biologic materials normally present in wounds (basic fibroblast growth factor [bFGF] and autologous blood clot [ABC]) to accelerate the bony and soft tissue ingrowth into porous high-density polyethylene implants.

Methods: We conducted a prospective, blinded animal histological study. Disks made of porous high-density polyethylene impregnated with bFGF or ABC were implanted into adult Sprague-Dawley rats in both subcutaneous and subperiosteal locations.

Exposure of high-density porous polyethylene (Medpor) used for contour restoration and treatment.

Porous high-density polyethylene (Medpor) is a biocompatible large-pore, high-density polyethylene implant. It is well tolerated by surrounding tissue, and its porous structure is rapidly infiltrated by host tissue. It is a highly stable and somewhat flexible porous alloplast that has rapid tissue ingrowth into its pores.

Porous polyethylene implants for nasal reconstruction: clinical and histologic studies.

This paper describes a technique of using Medpor porous high-density polyethylene implants for nasal reconstruction and chin augmentation. This biocompatible material has been used successfully during the last decade for various applications in the reconstruction of the facial skeleton. Among its most frequent uses are repair of the orbital floor and reconstruction of the burned ear, which became standard methods at many centers.

The use of high-density polyethylene implants in facial deformities.

Objective: To determine the usefulness of porous high-density polyethylene implants (Medpor) in a variety of facial skeletal deformities and subcutaneous defects, excluding those associated with acute maxillofacial trauma.

Design: Case series.

Setting: Academic tertiary care referral center in Baltimore, Md.

Use of porous high-density polyethylene in revision rhinoplasty and in the platyrrhine nose.

Nasal reconstruction presents a significant challenge to the facial plastic surgeon. Reestablishment of the desired aesthetic nasal contour and restoration of respiratory function are the dual goals of this endeavor. While autologous cartilage or bone is considered optimal grafting material, the supply is often limited and harvesting entails additional morbidity.