Medpor in maxillofacial deformities: report of three cases

Andrade, Neelam N.; Raikwar, Kanchan

doi:10.1007/s12663-009-0047-2

Cited by 14 publications

(4 citation statements)

References 21 publications

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“…This observation also happen in other patients with facial asymmetry. Although various surgical techniques such as dermal-fat grafting [ 30 ], local or free flap augmentation [ 31 , 32 ], and artificial materials such as silicone, hydroxyapatite and Medpor can provide facial volume augmentation [ 33 – 35 ], we prefer to use fat injection with the microautologous fat transplantation (MAFT) gun (Dermato Plastica Beauty Co., Ltd, Kaohsiung, Taiwan) because of reduced invasiveness, morbidity, and ease of repeatability [ 11 ]. Satisfactory results were obtained from this appraoch with less surgical morbidity.…”

Section: Discussionmentioning

confidence: 99%

An integrated surgical protocol for adult patients with hemifacial microsomia: Methods and outcome

Yamaguchi

Lonic

et al. 2017

PLoS ONE

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BackgroundHemifacial microsomia (HFM) features hypoplasia and asymmetry in skeletal as well as soft tissue, and correction of the deformity is difficult in terms of aesthetic outcome. The purpose of this study is to examine the validity of an integrated treatment protocol for correction of this facial deformity.Patients and methodsA retrospective study was performed on adult HFM patients who received two-jaw orthognathic surgery combined with facial contouring procedures in the first stage, and fat injection for the residual facial deficiency in the second stage. Inclusion criteria were patients treated by the same surgeon and follow-up at least 6 months. The demographic, perioperative, and follow-up data were collected. We defined a facial surface area discrepancy index (FDI) for objective assessment of the symmetry between the affected and non-affected side, and utilized visual analogue scale (VAS) for subjective evaluation of facial asymmetry before and after surgical treatment.ResultsA total of 14 patients were included. The mean age at orthognathic surgery was 21.7 years. Four patients were categorized as Pruzansky-Kaban type I, while the remaining 10 patients were type II (7 patients type IIA, 3 patients type IIB). Fat injection as a secondary procedure was performed in eleven cases (79%). The mean pre- and postoperative FDI was 87.6±6.3 and 95.4±5.2 with a significant advance for symmetry (p < 0.001). The pre- and postoperative VAS for asymmetry was 7.2±1.7 and 3.8±2.4 respectively, with a significant improvement (p = 0.002).ConclusionOur integrated approach using orthognathic surgery, facial contouring surgery and subsequent fat injection is satisfactory and obtain significant improvement of the facial deformity considering the complexity of HFM.

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Section: Discussionmentioning

confidence: 99%

An integrated surgical protocol for adult patients with hemifacial microsomia: Methods and outcome

Yamaguchi

Lonic

et al. 2017

PLoS ONE

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“…On the other hand, facial contour can be improved by onlay facial implants, namely, in the chin and mandible. If such devices, especially silicone implants, are subject to infection and underlying bone erosion, high-density polyethylene implants seem to provide promising results (Andrade and Raikwar, 2009; Niechajev, 2012). However, if the placement of a chin implant is convenient and swift, it does not provide the functional benefit featured by genioplasty.…”

Section: Discussionmentioning

confidence: 99%

Diagnosis and Innovative Multidisciplinary Management of Hallermann-Streiff Syndrome

Dulong

Bornert

Gros

et al. 2018

The Cleft Palate Craniofacial Journal

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Hallermann-Streiff syndrome (HSS) is a rare congenital disorder that mainly affects head and face development. We described the different patterns of the disease throughout the whole growth period and provided innovative treatment steps. Indeed, early genioplasty and dental implantation before growth completion were performed. These steps allowed to improve facial growth and to provide orthodontic anchorage, respectively. Complementary orthognathic surgery achieved satisfactory occlusion and refined aesthetics. We believe such an approach could be considered as a relevant treatment modality to complete multidisciplinary care in patients with HSS.

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“…High density polyethylene (HDPE) has been widely used in medical implants because it is a porous synthetic polymer that is biologically inert and non-absorbable in the body. Due to these advantages, HDPE facial implants are widely used as bone substitutes in facial surgery [8][9][10]. For example, the porous HDPE (Medpor ® , Stryker, Kalamazoo, MI, USA) provides the highly stable and somewhat flexible framework composed of interconnected pores and Medpor stimulates tissue to infiltrate into its pores [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Due to these advantages, HDPE facial implants are widely used as bone substitutes in facial surgery [8][9][10]. For example, the porous HDPE (Medpor ® , Stryker, Kalamazoo, MI, USA) provides the highly stable and somewhat flexible framework composed of interconnected pores and Medpor stimulates tissue to infiltrate into its pores [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Hydroxyapatite Nanoparticles and Nitrogen Plasma Treatment on Osteoblast Biological Behaviors of 3D-Printed HDPE Scaffold for Bone Tissue Regeneration Applications

Park¹,

Ryu

Jung

et al. 2022

Materials

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The need for the repair of bone defects has been increasing due to various causes of loss of skeletal tissue. High density polyethylenes (HDPE) have been used as bone substitutes due to their excellent biocompatibility and mechanical strength. In the present study, we investigated the preosteoblast cell proliferation and differentiation on the adding nano-hydroxyapatite (n-HAp) particles into HDPE scaffold and treating HDPE/n-HAp scaffolds with nitrogen (N2) plasma. The three-dimensional (3D) HDPE/n-HAp scaffolds were prepared by fused modeling deposition 3D printer. The HDPE/n-HAp was blended with 10 wt% of n-HAp particle. The scaffold surface was reactive ion etched with nitrogen plasma to improve the preosteoblast biological response in vitro. After N2 plasma treatment, surfaces characterizations were investigated using Fourier transform infrared spectroscopy, scanning electron microscopy, and atomic force microscopy. The proliferation and differentiation of preosteoblast (MC3T3-E1) cells were evaluated by MTT assay and alkaline phosphatase (ALP) activity. The incorporation of n-HAp particles and N2 plasma surface treatment showed the improvement of biological responses of MC3T3-E1 cells in the HDPE scaffolds.

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Medpor in maxillofacial deformities: report of three cases

Abstract: Porous high-density polyethylene alloplastic implant is an excellent biomaterial for reconstruction of various facial deformities with many advantages over autogenous and other alloplastic materials.

Cited by 14 publications

References 21 publications

An integrated surgical protocol for adult patients with hemifacial microsomia: Methods and outcome

An integrated surgical protocol for adult patients with hemifacial microsomia: Methods and outcome

Diagnosis and Innovative Multidisciplinary Management of Hallermann-Streiff Syndrome

Effect of Hydroxyapatite Nanoparticles and Nitrogen Plasma Treatment on Osteoblast Biological Behaviors of 3D-Printed HDPE Scaffold for Bone Tissue Regeneration Applications

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