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(searched for: A Case Study of Periprosthetic Femur Fracture and Internal Fixation)
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Mara Terzini, Alessandra Aldieri, Stefania Nurisso, Giuseppe De Nisco, Sciprofile linkCristina Bignardi
Frontiers in Bioengineering and Biotechnology, Volume 8; doi:10.3389/fbioe.2020.00619

Abstract:
The incidence of periprosthetic fractures has rapidly increased in the last two decades and has been the cause of a large number of revision surgeries and permanent physical disability for many patients, as well as a significant socioeconomic burden for many nations. This research deals with a periprosthetic femur fracture real event, occurred following a total hip arthroplasty and treated with one of the most widespread internal fixation methods: the implant of a periprosthetic femur plate system. A Finite Element analysis was performed to investigate the implanted femur plate break after a short follow-up and to understand the plate break causes. Such events are currently object of forensic debate as more and more often hospitals, surgeons, and medical device manufacturers are denounced by patients to whom similar events occur. In this work, different load situations acting on the femur during daily and incidental activities were simulated, in order to validate the correct behavior of the plate, according to the intended use recommended by the manufacturer. The analysis demonstrates that the plate failure can occur in situations of unconventional loading such as that caused by stumbling and in presence of incomplete bone healing.
Brian Darrith, Daniel D. Bohl, Mark S. Karadsheh, Scott M. Sporer, Richard A. Berger, Brett R. Levine
Published: 1 May 2020
The Journal of Arthroplasty, Volume 35, pp 1402-1406; doi:10.1016/j.arth.2019.12.033

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ElSayed M.Z. Morsi, Amr ElSayed Drwish, Amr M. Saber, Islam M. Nassar, Ahmed E.M. Zaki
Published: 13 April 2020
The Journal of Arthroplasty; doi:10.1016/j.arth.2020.04.021

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Published: 1 March 2020
Journal of Orthopaedics, Volume 18, pp 244-247; doi:10.1016/j.jor.2019.09.007

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Giuseppe Rollo, Enrico Maria Bonura, Gazi Huri, Mario Ronga, Christian Carulli, Michele Bisaccia, Francesco Traina, Paolo Pichierri, Marco Filipponi, Marco Giaracuni, et al.
Published: 1 February 2020
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Ariful Haque, Tong Wu, Zhang Long, Xiong Ying
Archives of Clinical and Medical Case Reports, Volume 4; doi:10.26502/acmcr.96550250

V. Campana, G. Ciolli, Sciprofile linkG. Cazzato, E. Giovannetti De Sanctis, C. Vitiello, A. Leone, F. Liuzza, G. Maccauro, GiovannettiE De Sanctis
Published: 1 October 2019
Injury; doi:10.1016/j.injury.2019.10.078

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T Malotí, M Jansová, T Matějka, J Matějka
Published: 1 January 2019
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Jong-Seok Park, Sijohn Hong, Sciprofile linkJae-Hwi Nho, Deokwon Kang, Hyung-Suk Choi, You-Sung Suh
Acta Orthopaedica et Traumatologica Turcica, Volume 53, pp 24-29; doi:10.1016/j.aott.2018.10.003

Abstract:
The aim of this study was to evaluate the radiologic outcomes of open reduction and lateral plating with wiring in the treatment of Vancouver B2 periprosthetic femoral fractures. We retrospectively recruited 37 patients treated with ORIF with lateral plating and wiring for Vancouver B2 fractures. The 27 patients (15 men and 12 women; mean age: 70.8 ± 8.3 years) without follow-up loss had achieved complete bony union without notable complications. The average union period was checked after operation with radiologic findings. Radiologic outcomes were evaluated by ipsilateral limb length discrepancy (LLD) and subsidence between immediate postoperative length and length at postoperative 1 year after adjusting for magnification differences. The average distance to which the retained stem sunk down was investigated between immediate postoperative radiographs and final radiographs showing union. Ten patients could not be evaluated, because of mortality or failure to follow up. The average time to union was 18.3 weeks, and the average distance of stem sinking was 2.5 ± 1.7 mm (range: 0-7.2 mm), which was significantly different between immediate postoperative radiographs and final radiographs. There was no case with loss of reduction or loss of fixation, requiring revision surgery. Open reduction and lateral plating with wiring as a treatment for Vancouver B2 periprosthetic femoral fractures produced good radiologic outcomes with successful bony union. ORIF can be considered the alternative option for treating patients with Vancouver B2 PPF, instead of stem revision surgery. Level IV, Therapeutic study.
W F Liu, F J Yang, Y Li, B Li, L Hao, X H Niu
Zhonghua wai ke za zhi [Chinese journal of surgery], Volume 56, pp 677-686

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