×

You are using an outdated browser Internet Explorer. It does not support some functions of the site.

Recommend that you install one of the following browsers: Firefox, Opera or Chrome.

Contacts:

+7 961 270-60-01
ivdon3@bk.ru

  • Experimental study of the process of freezing and thawing models of residual bone cavity when cooled with liquid nitrogen

    A method, a device and an experimental model were developed to control the cooling and providing effective low temperatures during cryosurgical treatment of bone tumors. Using the developed device, a range of effective temperatures was determined under the action of liquid nitrogen on the model of the bone cavity. Two ways of cooling the residual bone cavity, instillation and contact, were compared. During the experiment it was proved that the contact method of cryoexposure on the residual bone cavity model is more effective than the instillation of liquid nitrogen according to the characteristics of the temperature field. The proposed experimental model of the residual bone cavity makes it possible to study the temperature field, determine the rate of freezing and thawing both with the contact method and with the instillation of liquid nitrogen into the bone cavity. The results obtained allow to develop preliminary recommendations on the technique of carrying out cryosurgical ablation of bone tumors.

    Keywords: cryoprobe, experimental model, tumors of bones, cryosurgery

  • Device for realizing minimally invasive knee arthroplasty

    In order to improve minimally invasive technique knee arthroplasty the authors developed a device for carrying minimally invasive arthroplasty allowing without patellar dislocation, align total knee replacement through proper channel formation in epimetaphysis thigh where installed Cutting Guide, with the block for trimming the articular surface of the femur. Using the device improves the accuracy of implantation of the prosthesis.

    Keywords: invasive knee replacement, gonarthrosis, medical instruments

  • Technical means to improve minimally invasive knee arthroplasty

    In order to improve minimally invasive technique knee arthroplasty authors propose "retractor to retract the patella in minimally invasive total knee arthroplasty," which can improve visualization during surgery to protect the extensor apparatus of the knee joint and reduce the number of complications and "Apparatus for carrying a minimally invasive knee arthroplasty" to improve the accuracy of the endoprosthesis implantation through access «quadriceps-sparing».

    Keywords: invasive knee replacement, gonarthrosis, medical instruments

  • Modern technology to improve the accuracy of implantation of less invasive knee replacement on the basis of mathematical modeling

    In order to improve techniques of minimally invasive total knee arthroplasty (IEAC) based on anatomical studies, we have developed a mathematical model and a computer program IEAC preoperative planning that takes into account the anthropometric data of the patient (body type, size patellar index Insall-Salvati), type and size of prosthesis and allows to calculate minimal incision and maximum elongation wound during surgery. Use of this software improves the accuracy of the planning and preparation of surgery, to improve the accuracy of implantation of the prosthesis.

    Keywords: minimally invasive replacement of knee joint, computer modelling, preoperative planning, computer software preoperative planning