Dynamic control of knee axial deformities

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Abstract

The authors have evaluated the clinical examination of the patients with axial malalignments in the knee by the original method and device which was named varovalgometer. The measurements were conducted by tension of the cord through the spina iliaca anterior superior and the middle of the lower pole of patella. The deviation of the center of the ankle estimated by metal ruler which was positioned perpendicular to the lower leg axis on the level of the ankle joint line. The results of comparison of our method and computer navigation in 53 patients during the TKA show no statistically significant varieties but they differ by average 5° of valgus in clinical examination in comparison with mechanical axis which was identified by computer navigation. The dynamic control of axial malalignment can be used in clinical practice for estimation of the results of treatment of pathology with axial deformities in the knee; for the control of reduction and secondary displacement of the fractures around the knee; for assessment of instability; in planning of correctional osteotomies and intraoperative control of deformity correction; for estimation of Q angle in subluxation and recurrent dislocation of patella; in planning of TKA; during the growth of child it allows to assess the progression of deformity.

About the authors

E. E. Malyshev

Nizhniy Novgorod Medical Academy

Author for correspondence.
Email: eugenemal@yandex.ru
Russian Federation

D. V. Pavlov

Nizhniy Novgorod Research Institute of Traumatology and Orthopaedics

Email: pavlovasobaka@yandex.ru
Russian Federation

S. V. Blinov

Nizhniy Novgorod Medical Academy

Email: serg512@bk.ru
Russian Federation

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