Sinegubov D. 3

Object of research are patients with bilateral degenerative-dystrophic injury of hips. The purpose – to improve the results of treatment of patient with bilateral degenerative-dystrophic hip involvement by the way of development of the native technology of hip replacement and perfection of methods of preoperative planning and postoperative rehabilitation of patients with this kind of pathology. Methods of research are clinical examination, roent-genological, biomechanical, roentgen anthropometric, densitometric, statistical processing of information.The method of preoperative planning of bilateral hip replacement with using of special orthopedical slide-rule was elaborated (UA patent 7721); this slide-rule allows to measure the symmetric location of the centers of rotation of endoprostheses. For the first time based on the complex evaluation of clinical and functional state of both hips the criteria of determination of the optimal interval between operations of hip replacement were elaborated and alsothe indications for the choice of the method of fixation of the implant in patients with bilateral hip involvement. For the first time the dynamic of changing of bone density after hip replacement in patients with bilateral hip involvement was studied and also its connection with the changing of static and dynamic function of lower extremities. The native cementless hip endoprosthesis with press-fit fixation and set of instruments for implantation were elaborated (UA patent 59068 A). This endoprosthesis was also used in cases of bilateral hip replacement. For the first time it was distinguished and grounded the periods of rehabilitation treatment and the postoperative rehabilitation program after bilateral hip replacement was improved. For the first time the scale of evaluation of results of bilateral hip replacement was developed.The application of the method of preoperative planning, criteria of the choice of kind of fixation of endoprostheses’ components, the native technology of total hip replacement using press-fit effect and the improving of staged rehabilita-tion had allowed to achieve better results of treatment of patients with different forms of bilateral degenerative-dystrophic injury of hip. Total hip endoprostheses ORTEN including the “Cup of hip endoprosthesis” (UA patent N59068 A) are allowed for the clinical using (Certificate of Ministry of Health of Ukraine N 1569 / 2003 from 27.02.2003) and applied to industrial production. The materials of work are used in educational process of chairs of orthopedics and trauma of Dniepropetrovsk state medical academy, Kharkov state medical university, Vinnitsa national medical university named after N.I. Pirogov, Zaporozhye state medical university. The results of work are applied into the clinical practice of Institute of pathology of spine and joints of Academy of medical sciences of Ukraine named after prof. M.I. Sitenko (Kharkov), Dniopropetrovsk, Zaporozhye, Kharkov, Cherkassy state hospitals, Vinnitsa municipal clinical hospital N2, Sevastopol municipal hospital N9. Traumatology and orthopedics.