ABSTRACT
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. There were no complications in the postoperative period. Articles made of nitinol are very strong, elastic and have the effect of thermo-mechanical memory of the form.
Subject(s)
Alloys , Fracture Fixation/instrumentation , Head Injuries, Closed/surgery , Plastic Surgery Procedures/instrumentation , Skull Fractures/surgery , Temporal Bone/injuries , Follow-Up Studies , Head Injuries, Closed/diagnostic imaging , Humans , Male , Radiography , Skull Fractures/diagnostic imaging , Temporal Bone/surgery , Young AdultABSTRACT
Research was conducted on 26 adult outbred male and female mice, which were implanted with nickel-titanium wire in the paravertebral zone. The tissues surrounding the implants were studied macroscopically and histologically 2-8 months after the implantation. It was found that the morphological changes of tissues after nickel-titanium wire implantation were detected by microscopical study at the time intervals greater than 2 months after the operation. They included the formation of a thin connective tissue capsule in close vicinity to the implant. No signs of reactive changes in the distant tissues and organs were detected. It is concluded, that the nickel-titanium alloy possesses high degree of biological inertness and may be used for making fixating devices with the memory of mechanical shape that are employed in cranioreconstructive surgery.
Subject(s)
Biocompatible Materials/adverse effects , Materials Testing , Nickel/adverse effects , Orthodontic Wires/adverse effects , Titanium/adverse effects , Animals , Bone Marrow Cells/cytology , Female , Male , Mice , Mice, Inbred Strains , Spine/cytologyABSTRACT
The results of post-mortem examination of 140 cadavers of persons who had died of craniocerebral injuries are appraised. It was established that in injury inflicted through a protective head-piece, the proportion of damage to the bones of the base of the skull, basally located structures of the large hemispheres and stem of the brain in the total number of injuries increases. The study is supplemented with mathematical calculations which explain the dependence observed.
