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. 2018 Jun 4;89(5):496–502. doi: 10.1080/17453674.2018.1481588

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© 2018 The Author(s). Published by Taylor & Francis on behalf of the Nordic Orthopedic Federation.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-Non-Commercial License (https://creativecommons.org/licenses/by/4.0)

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Figure 4. — Cox regression curves for implant survival after different fracture types and operation methods adjusted for age groups, gender, and ASA class. A. All fractures/all operations methods (RR =1.2 (1.1–1.4), p = 0.001). B. Displaced femoral neck fractures/all operation methods (RR =1.7 (1.4–2.1), p < 0.001). C. Displaced femoral neck fractures/screw osteosynthesis (RR =1.4 (1.0–1.9), p = 0.001). D. Displaced fractures/hemiprosthesis (RR =1.3 (0.99–1.8), p = 0.06).