Technical concept of patient-specific, ultrahigh molecular weight polyethylene orbital wall implant

Kozakiewicz, Marcin; Elgalal, Marcin; Walkowiak, Bogdan; Stefańczyk, Ludomir

doi:10.1016/j.jcms.2012.10.007

Cited by 39 publications

(26 citation statements)

References 36 publications

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“…22,23 Biomaterials have been reported by many authors, including titanium mesh, 24 absorbable titanium mesh, 25 ultra-high molecular weight polyethylene, 26,27 hydroxyapatite (HA), 28 and so on.…”

Section: Reconstruction Of the Original Attachment Of Mctmentioning

confidence: 99%

The management of naso-orbital-ethmoid (NOE) fractures

Wei

Tang

Liu

et al. 2015

Chinese Journal of Traumatology

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The bony naso-orbital-ethmoid (NOE) complex is a 3-dimensional delicate anatomic structure. Damages to this region may result in severe facial dysfunction and malformation. The management and optimal surgical treatment strategies of NOE fractures remain controversial. For a patient with NOE trauma, doctors should perform comprehensive clinical examination and radiographic analysis to assess the type and extent of fracture. The results of assessment will assist doctors to make a patient-specific program for the sake of reducing post-operation complications and restoring normal appearance and function as much as possible. This review focuses on the advancement of management of NOE fractures including symptoms, classifications, diagnosis, approaches, treatment and new techniques in this field.Due to the naso-orbital-ethmoid (NOE) complex's intricate anatomy, the fracture in this region has been one of the most challenging to manage in maxillofacial trauma. The NOE complex is a 3-dimensional delicate anatomic structure. Damage to any structure in this region, even minimal, is quite likely to result in the facial function and appearance abnormal. M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPTFurthermore, this complex structure has a compact relationship with the brain and eyes, because it separates the nasal, orbital cavities from cranial cavity. Therefore, as long as the fracture of the region is suspected, a thorough physical examination and radiographic assessment, such as 2-dimensional (2D) CT and 3-dimensional (3D) CT, must be performed to assess the type and extent of fracture after achieving the stable vital signs.At present, different types of approaches for exposure have been discussed, such as midfacial degloving and endoscopic approach, as well as management of the NOE fracture, such as bone tissue engineering. However, every procedure has its advantages and disadvantages. According to individual injures, the surgeon should select the patient-specific treatment to restore the normal facial function and appearance. This review will discuss the advancement in the field of NOE fracture management. NOE anatomy Bony structure: the NOE complex consists of the nasal bones, frontal process of the maxilla, nasal process of the frontal bone, lacrimal bone, lamina papyracea, ethmoid bone, sphenoid bone and nasal septum, which separate the nasal, orbital cavities from cranial cavity. 1,2 The medial orbital wall is made up of the lacrimal bone and the lamina papyracea of the ethmoid where blowout fracture is easy to occur (Figure 1). 1 Medial canthal tendon (MCT): MCT is the pivotal soft tissue in NOE area, which supports the canthus, enables proper apposition between the eyelid and the globe, and performs as the lacrimal pump. 2 However, there are many controversies on the anatomy of MCT. The main controversy is on the number of the tendon's limbs. Some scholars referred that it had three limbs: anterior, superior, posterior, 2 some others argued that the superior limb did not exist. 3 Furthermore, some report...

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Section: Reconstruction Of the Original Attachment Of Mctmentioning

confidence: 99%

The management of naso-orbital-ethmoid (NOE) fractures

Wei

Tang

Liu

et al. 2015

Chinese Journal of Traumatology

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“…Such patient-specific implants are durable, can even be used to reconstruct very thin walls, do not exhibit the high degree of morbidity typical for autogenous bone grafts, and result in restoration of vision function. 24 The implants thus produced have an edge over the convenient methods for orbital floor reconstruction. 23,24 Implementation of individually designed PDLLA implants completely meets the requirements of orbital floor reconstruction.…”

Section: Discussionmentioning

confidence: 99%

“…24 The implants thus produced have an edge over the convenient methods for orbital floor reconstruction. 23,24 Implementation of individually designed PDLLA implants completely meets the requirements of orbital floor reconstruction. It facilitates adequate implant positioning, which allows better adherence of the implant within the defect area.…”

Section: Discussionmentioning

confidence: 99%

Application of Computer-Aided Designing and Rapid Prototyping Technologies in Reconstruction of Blowout Fractures of the Orbital Floor

Tabaković

Konstantinović

Radosavljević

et al. 2015

Journal of Craniofacial Surgery

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“…Ultra-high molecular weight polyethylene (UHMW-PE) has been widely applied to biomedical materials due to its superior chemical stability and its tribological and mechanical properties [1] [2]. The UHMW-PE is also used in the industry such as pickers for textile machinery, lining for coal chutes and dump trucks.…”

Section: Introductionmentioning

confidence: 99%

Study on the Properties of UHMW-PE Film

Du¹,

Wang²,

Wen³

et al. 2015

AMPC

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Some physicochemical properties of UHMW-PE film such as gas permeability, tensile strength, and corrosion resistance in acid with different immersion time, various concentrations and various solutions and rattler testing were studied. The obtained results showed that the values of gas permeability, tensile strength, elongation at break, and the temperature of dissociation at weight loss 5% was 546.57 cm 3 •m −2 •24 h•0.1 MPa, 37.22 MPa, 368.00%, 360˚C, respectively. In different concentration acid, the surface resistance of film accumulated to some extent with immersion time increasing, together with that the higher acid concentration was, the lower the surface resistance of film was. Moreover, the contact angle of films gradually increased with the acid concentration decreasing and the increase of immersion time. After wear testing, the mass of UHMW-PE film did not nearly change, while the contact angle became larger with the number of turning increasing and the value was more than 90˚.

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Technical concept of patient-specific, ultrahigh molecular weight polyethylene orbital wall implant

Cited by 39 publications

References 36 publications

The management of naso-orbital-ethmoid (NOE) fractures

The management of naso-orbital-ethmoid (NOE) fractures

Application of Computer-Aided Designing and Rapid Prototyping Technologies in Reconstruction of Blowout Fractures of the Orbital Floor

Study on the Properties of UHMW-PE Film

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