Study of the effectiveness of the electrostatic field in the treatment of osteoarthritis
Linnik S.A.1, Khomutov V.P.2
1 North-West State Medical University named after I.I. Mechnikov, St. Petersburg
2 LLC «Medel», St. Petersburg
Osteoarthritis of large joints is an urgent problem of orthopedics. One of the factors in the pathogenesis of osteoarthritis is the violation of physiological bioelectric processes in the bone tissue of the epiphyses. Based on the results of the studies, there is the possibility of effective exposure of electrets to the reparative processes in the bone and cartilage tissues by the electric field. Electret is an electrified dielectric with a stabilized electric charge that creates an electric field in the surrounding space, which has a polarizing effect on the tissues when the electret is introduced into the body.
Aim: evaluation of effectiveness and safety of electret application for the treatment of osteoarthritis.
Patients and methods: 35 patients were included into the study. 33 patients (age from 35 to 79 years) with osteoarthrosis of the knee (25) and hip (8) joints completed the study for all the endpoints of the program. Tantalum anodic oxide electrets were implanted into the patients with osteoarthritis of large joints - the IMPLESO ® method with the use of "Implant electret stimulator of osteoreparation", developed by LLC Medel, St. Petersburg, Russia. The results of treatment were evaluated by changes in the amplitude of movements, the WOMAC index, X-ray, computed tomography (CT), magnetic resonance imaging (MRI).
Results: adverse reactions and complications in the postoperative period and during 6 months of observation were not observed. Within 6 months after electret implantation, the WOMAC index decreased significantly, the amplitude of motion was restored (in 60% of patients the amplitude of movements in the affected joint was completely restored, in 30% the amplitude in one type of the motion was restored), there were no signs of degenerative-dystrophic changes. In all patients the severity of the contracture of the affected joint decreased.
Conclusion: clinical efficacy and safety of using the electrets in the treatment of joint arthrosis have been proven. It was noted that the intensity of the positive effect increases and reaches its maximum by the end of the 6th month after the operation
Key words: electric field of the electret, arthrosis, joint, implantation, osteoarthritis.
For citation: Linnik S.A., Khomutov V.P. Study of the effectiveness of the electrostatic field in the treatment of osteoarthritis // RMJ. MEDICAL REVIEW. 2017. № 1. P.2 –5.
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5. Моргунов М.С., Нетупский И.В., Орлов В.М. и др. Имплантаты с электретным покрытием из анодного оксида тантала и полимера // Материаловедение. 2012. № 7. С. 26–30 [Morgunov M.S., Netupskiy I.V., Orlov V.M. i dr. Implantaty s elektretnym pokrytiem iz anodnogo oksida tantala i polimera // Materialovedenie. 2012. № 7. S. 26–30 (in Russian)].
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8. Nori M., Marupaka S.K., Alluri S. et al. MRI Evaluation of Post Core Decompression Changes in Avascular Necrosis of HIP // J. Clin. Diagnostic Res. 2015 Dec. Vol. 9(12). TC04-TC08.
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