Saratov JOURNAL of Medical and Scientific Research

Zuev P.P.

Saratov State Medical University n.a. V I. Razumovsky, Scientific Research Institute of Traumatology, Orthopedics and Neurosurgery, Junior Research Assistant of Department of Innovative Projects in Traumatology and Orthopedics

Comparative analysis of surgical outcomes for patients with femoral ununited midshaft fractures

Year: 2019, volume 15 Issue: №3 Pages: 641-643
Heading: Traumatology and Orthopedics Article type: Original article
Authors: Zuev P.P.
Organization: Saratov State Medical University

Objective: to perform comparative analysis of surgical outcomes in patients with types A2 and A3 ununited midshaft fractures of the femurs using Oswestry Disability Index (ODI), standardized assessment system for bone fracture outcomes and their consequences (SOI-1) and modified radiographic assessment of fracture healing (mRUS). Material and Methods. 40 patients with ununited midshaft fractures of the femurs including 22 patients with type A fractures (Group I) and 18 patients with type В fractures (Group II) were surveyed. The average follow-up period was 29.5±19.5 months. Results. In Group I the average ODI score made 47±0.9 and SOI-1 scores made 85±1.8% in 12 months. The mRUS fracture union score corresponded to 13.9±0.6. In Group II the average ODI score made 46.2±0.9 and SOI-181.8±1.7% in 12 months. The mRUS fracture union score corresponded to 13.7±0.6. Conclusion. The injured limbs functionality recovered sooner in patients of Group I (type A3 fractures) specifically in 6 months of a surgery proven by the absence of statistical differences in the results of estimation with ODI questionnaire and SOI-1 system observed in 12 months owing to the nature of fractures rather than the degree of their unions or the methods of surgical invasion applied.

2019_03_641-643.pdf258.76 KB

Justification of intramedullary fixation devices modification and first clinical experience of application of the SarNIITO nails for femur shaft osteosynthesis

Year: 2019, volume 15 Issue: №1 Pages: 52-57
Heading: Traumatology and Orthopedics Article type: Original article
Authors: Barabash А.Р., Norkin I.A., Barabash Yu.A., Ivanov D.V., Zuev P.P., Shpinyak S.P.

Objective: to estimate the changes of effective stresses (by Mises) at three types of loads (axial, lateral and twisting) for various types of intramedullary nails synthesizing modeled fractures of A1; A3; B2 types at the level of femur bone middle third. Material and Methods. To solve the preclinical tasks computer simulation of biomechanical systems bone-fixing pin and method of finite elements were employed. Results. The nails developed by SarNIITO excel ChM and Fixion rods in stress-deformed condition, fatigue strength and stability of fixation of the examined types of fractures parameters of 12- 23%. Conclusion. The mechanical characteristics of SarNIITO nails proved to be of clinical use and may be recommended for patients with femur bone diaphysis fractures.

2019_1_052-057_1.pdf1.55 MB

Revision hip endoprosthesis peculiarities after removal of costruc-tions fixed by screw thread

Year: 2010, volume 6 Issue: №2 Pages: 421-423
Heading: Traumatology and Orthopedics Article type: Original article
Authors: P.A. Zuev, N.N. Pavlenko, M.A. Saakyan, P.P. Zuev
Organization: Saratov State Medical University, Saratov Scientific Research Institute of Traumatology and Orthopedics

The given article concerns with revision hip replacement performed by the construction fixed in intramedullary canal of femur, due to the screw thread applied on the surface of the prosthesis. The example of two-phase hip replacement after the removal of such construction is under the study

201002_421_423.pdf339.47 KB