A new method of closing the defects of chest wall

Abstract

There was worked out a new method of plastics of chest wall defects by means of construction from nikelide of titan. An experimental examination of effectiveness of the method with the use of clinical, roentgenological and morphologic control was carried out. The method provides normalization of biomechanics of respiration by means of restoration of osteochondrous skeleton and liquidation of cosmetic defection.

Combined Porous-Monolith TiNi Materials Surface-Modified with Electron Beam for New-Generation Rib Endoprostheses

“…Porous-monolithic or composite TiNi materials are already widely used for the creation of endoprostheses targeting different goals, such as replacement of resected fragments of ribs [26], elimination of defects in the lower jaw [27], dental implantation [28], etc. All the above-mentioned implantable devices and structures based on TiNi typically have a similar composite structure that combines a monolithic TiNi plate and a relatively thick porous TiNi part which is obtained by sintering or by self-propagating high-temperature synthesis (SHS).…”

“…To avoid it, the starting temperature of the SHS stage was increased, which however resulted in much larger surface pores and interpore bridges. [26,27,32]. In addition, because of the technological limitations of the SHS method, the porous part on the finished endoprosthesis is often made as thick as up to 3-5 mm, which also limits the deformation resource of the implant [26,27,32].…”

“…[26,27,32]. In addition, because of the technological limitations of the SHS method, the porous part on the finished endoprosthesis is often made as thick as up to 3-5 mm, which also limits the deformation resource of the implant [26,27,32]. Thus, up to date, the technology for fabrication of high-performance TiNi materials for artificial ribs is still far from being reliable, cost-efficient and well reproducible.…”

“…To address the above-mentioned challenges and prepare TiNi composite materials with a thin porous layer on a monolithic substrate, yet with high adhesion between them, earlier we proposed to sinter properly selected TiNi powders on monolithic plates with a subsequent modification of the 3 of 19 formed composite structure [26,27,32]. After surface modification with a low-energy high-current pulsed electron beam (HCPEB), the fabricated materials were shown to have a relatively thin TiNibased porous layer on monolith TiNi plates, while the porosity and adhesion of the porous layer could be tuned through processing parameters [33][34][35][36].…”