Journal article

Publication year: 2016

Pages: 453-459

Journal: Injury

Volume number: 47

Issue number: 2

ISSN: 0020-1383

eISSN: 1879-0267

DOI Link: https://doi.org/10.1016/j.injury.2015.10.031

Publisher: Elsevier

Abstract: 

Backround: Purpose of this experimental study was to investigate the influence of cerclages on the primary stability of the MUTARS (R) system using distally fractured synthetic femora.

Methods: 4 MUTARS (R) prostheses were implanted in synthetic femora respectively. Groups consisted of 4 intact bones, 4 fractured with cerclages and 4 fractured bones without cerclages. Spatial micromovements were measured with a high-precision rotational setup.

Findings: The order from the weakest to the strongest torque transmission of the intact bones was rm(1)-rm(4)-rm(2)-rm(3) (p = 0.011) and of the fractured bones with cerclages rm(4)-rm(1)-rm(3)-rm(2) (p = 0.013). The MUTARS1 stems broke out of the fractured femoral shaft by removing cerclages (p < 0.001) and by the influence of bone defect A (p < 0.001). Overall micromovements of the intact bones were lower than those of the fractured bones without cerclages (p < 0.001) and overall micromovements of the fractured bones with cerclages were lower than those of bones without cerclages (p < 0.001).

Interpretation: Due to high press-fit at the proximal and distal isthmus region fissural fractures of the femur may occur. This should always be taken into account. It is advisable to secure them and provide a prophylaxis for these fissural fractures by means of cerclages. (C) 2015 Elsevier Ltd. All rights reserved.

Harvard Citation style: Jahnke, A., Jakubowitz, E., Ishaque, B., Rickert, M. and Bischel, O. (2016) Influence of cerclages on primary stability of tumor megaprostheses subjected to distal femur defects, Injury, 47(2), pp. 453-459. https://doi.org/10.1016/j.injury.2015.10.031

APA Citation style: Jahnke, A., Jakubowitz, E., Ishaque, B., Rickert, M., & Bischel, O. (2016). Influence of cerclages on primary stability of tumor megaprostheses subjected to distal femur defects. Injury. 47(2), 453-459. https://doi.org/10.1016/j.injury.2015.10.031