Acta Mechanica Slovaca 2018, 22(1):6-11 | DOI: 10.21496/ams.2018.002

Estimation of the Polfix Type Plates Exploitation at Plate Fixation of Femoral Shafts

Jarosław Sidun¹

¹ Bialystok University of Technology, Mechanical Faculty, Department of Biocybernetics and Biomedical Engineering, Wiejska 45c, 15-351 Białystok, Poland

The so-far unsolved issues of the biomechanics of the bone - plate stabiliser system functioning in a multi-plate system constituted the main focus of the performed research. The few available publications treat this issue selectively and often generally. The paper presents a damages problems of the Polfix stabiliser at plates fixation. The surface failure at Polfix stabiliser elements showed typical damages for this system. Damages of screw's steepl heads as well as the surface layers failure of the conical holes on clamping plates and the coned seat on tie plates were observed. The surface failure at a clampig's srews at copressive hole were visible in a lesser degree. The biggest wear areas are visible on the cooperating surfaces of the plate sockets and the bone screw heads. Many types of damage characteristic of processes of corrosion damage and tribological wear, mainly abrasive, adhesive, and fretting wear, are observed here.

Keywords: exploitation, fixation biomechanics, Polfix, fretting, wear.

Published: March 15, 2018  Show citation