[Correction of pectus excavatum and long-term outcome in adult].

is the most common congenital chest malformation characterized by symmetrical or asymmetric depression of the chest with deformation of the sternocostal complex. is often associated with other dysplastic diseases of connective tissue. Ravitch thoracoplasty and Nuss minimally invasive correction are the most common today.

Fretting corrosion behavior of nitinol spinal rods in conjunction with titanium pedicle screws.

Untypical corrosion damage including erosions combined with the build-up of titanium oxide as a corrosion product on the surface of explanted Nitinol spinal rods in the areas where it was in contact with titanium pedicle screw head is reported. It was suggested that Nitinol rods might have inferior fretting corrosion resistance compared with that made of titanium or CoCr. Fretting corrosion of Nitinol spinal rods with titanium (Ti6Al4V) pedicle screws were tested in-vitro by conducting a series of potentiostatic measurements of the peak-to-peak values of fretting corrosion current under bending in a 10% solution of calf serum in PBS.

Metal concentrations in the blood and tissues after implantation of titanium growth guidance sliding instrumentation.

Background: Growth guidance sliding treatment devices, such as Shilla (Medtronic, Minneapolis, MN USA) or LSZ-4D (CONMET, Moscow, Russia), used for the treatment of scoliosis in children who have high growth potential have unlocked fixtures that allow rods to slide during growth of the spine, which avoids periodical extensions. However, the probability of clinical complications associated with metallosis after implantation of such devices is poorly understood. The content of metal ions in the blood and tissues of pediatric patients treated for scoliosis using fusionless growth guidance sliding instrumentation has not yet been investigated.

Analysis of retrieved growth guidance sliding LSZ-4D devices for early onset scoliosis and investigation of the use of nitinol rods for this system.

Study Design: Analysis of volumetric wear loss of retrieved growth guidance sliding devices LSZ-4D for treatment of early onset scoliosis and laboratory in vitro wear test for comparison of wear resistance of alloys Nitinol, Ti, and cobalt chromium (CoCr).

Objective: To evaluate quantitatively the amount of wear debris from the sliding LSZ-4D device and to investigate the potential of using Nitinol for replacing Ti alloys in spinal instrumentation. To do that, wear resistance of Nitinol, Ti, and CoCr was compared.

[The radical minimal access thoracoplasty by funnel chest in adults].

A new technique of radical thoracoplasty, performed with a small size incision, using the sternocostal complex fixation with nitinol plates with shape memory and the surgical toolkit required for the purpose, has been successfully introduced. 23 patients underwent surgery using the technique. Tree patients had early postoperative complications: 2 cases of exudative pleurisy and 1 case of bronchitis aggravation.

[Radical thoracoplasty by the funneled thorax malformation in adults].

Early and long-term results of radical thoracoplasty in 114 adult patients with funnel chest are presented. The Sulamaa-Paltia operation was performed in 24 patients, thoracoplasty with sternocostal complex fixing by arcuated nitinol plates was made in 30 patients. Thoracoplasty with sternocostal complex fixing by M-shaped nitinol plates was performed in 60 cases.

[Application of damper craniofixators from nitinol in plasty of skull defects].

An overview of the methods of fixation of the skull bones is presented,as well as discussion and characterization of different methods of fixation. A new system of fixation of the skull bones was used in osseous-plastic trepanation and reconstructive operations using nitinol craniofixators. Results of cranioplasty using craniofixators were analyzed in 62 patients with craniocerebral injuries and its consequences, vascular and oncological diseases of the brain.

[Clinical studies of transpedicular system using TiNi rod with functionally optimal rigidity].

Transpedicular metal systems are very widely applied in surgical treatment of spinal pathology. Recently TiNi constructions were introduced into practice. This material is characterized by shape memory, superior elasticity and cyclic durability.

[Experimental and clinical substantiation of the functional transpedicular stabilization of the vertebral column].

Metallic construction for transpecular stabilization (transpedicular constructions T-TPC). Titanium nickelide (TiNi) alloys have come into existence in the surgical treatment of diseases of the vertebral column and spinal cord. The properties of these alloys are the storage of a shape, superelasticity, and cyclic longevity.