Gargano, G, Poeta, N, Oliva, F, Migliorini, F and Maffulli, N (2021) Zimmer Natural Nail and ELOS nails in pertrochanteric fractures. Journal of Orthopaedic Surgery and Research, 16 (1). 509 - ?. ISSN 1749-799X

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BACKGROUND: Pertrochanteric fractures of the femur in the elderly are very common. As the average age of the population increases, the incidence of such fractures also raises, resulting in high healthcare costs. The type of surgical devices employed for their surgical management influences these costs. METHODS: A comparative clinical study was conducted on patients operated by one single surgeon between December 2018 and November 2020 in a high-volume regional referral centre. All patients who received a Zimmer Natural Nail (ZNN) or ELOS devices were included. RESULTS: In 119 (66.48%) of the 179 fractures, a ZNN nail was used. Post-operatively, the TAD (tip-to-apex distance) was measured at an average value of 17.05 (4.42-41.85) mm and the CalTAD (calcar-referenced TAD) at an average of 20.76 (10.82-43.63) mm. The mean hospitalization time was 10.19 (4-22) days. In the other 60 trochanteric fractures, an ELOS nail was used. Post-operative imaging indicated a TAD of 19.65 (5.08-31.4) mm and a CalTAD of 22.86 mm (12.66-33.77). The average time of the operation was 45.82 (20-110) min. The average period of hospitalization was 10.45 (5-24) days. CONCLUSION: Both devices give similar results in terms of short-term post-operative outcome and hospitalization. The price difference between the devices does not translate in different short-term results on the operated patients.

Item Type: Article
Additional Information: Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit The Creative Commons Public Domain Dedication waiver ( applies to the data made available in this article, unless otherwise stated in a credit line to the data.
Uncontrolled Keywords: Hip fracture; Pertrochanteric fracture; Intramedullary nail; ZNN; ELOS
Subjects: R Medicine > R Medicine (General)
Divisions: Faculty of Medicine and Health Sciences > School of Medicine
Related URLs:
Depositing User: Symplectic
Date Deposited: 03 Sep 2021 09:43
Last Modified: 19 Nov 2021 11:58

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