Correlation between lag screw route and the ideal insertion point of the intramedullary nail

Abstract Understanding the morphology of the superior aspect of the proximal femur is critical for treating femoral fracture. We assessed the correlation among the ideal insertion point of the femoral nail, femur head-neck axis, and native anteversion. One hundred patients with normal femurs were in...

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Autores principales:	Junya Yoshitani, Tamon Kabata, Yoshitomo Kajino, Daisuke Inoue, Takaaki Ohmori, Ken Ueoka, Yuki Yamamuro, Atsushi Taninaka, Hiroyuki Tsuchiya
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3a07b700b76b4adfb949c0d73942eefd
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spelling	oai:doaj.org-article:3a07b700b76b4adfb949c0d73942eefd2021-12-02T14:34:02ZCorrelation between lag screw route and the ideal insertion point of the intramedullary nail10.1038/s41598-021-93348-92045-2322https://doaj.org/article/3a07b700b76b4adfb949c0d73942eefd2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93348-9https://doaj.org/toc/2045-2322Abstract Understanding the morphology of the superior aspect of the proximal femur is critical for treating femoral fracture. We assessed the correlation among the ideal insertion point of the femoral nail, femur head-neck axis, and native anteversion. One hundred patients with normal femurs were included in this study. Computed tomography (CT) images of the proximal femur superior aspect and amount of native anteversion were acquired. Generalised Procrustes analysis showed the morphological characteristics of the superior proximal femur according to native anteversion amount. Morphological characteristics were represented by 4 parameters; the correlation between parameters and native anteversion was investigated using CT data. The passing point of the line from the proximal femoral canal parallel to the native anteversion at the greater trochanter was located more posteriorly (mean 35.6%); the passing point of native anteversion was posterior in the femoral neck and head, although the line of the head-neck centre passed more anteriorly at the greater trochanter (mean 67.5%). This posterior translation was significantly associated with native anteversion amount. Morphometric geometric analysis showed that the lag screw could not pass head-neck centre from the nail inserted into proximal femoral canal. Anterior insertion of the nail was needed for positioning the lag screw centre.Junya YoshitaniTamon KabataYoshitomo KajinoDaisuke InoueTakaaki OhmoriKen UeokaYuki YamamuroAtsushi TaninakaHiroyuki TsuchiyaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Junya Yoshitani Tamon Kabata Yoshitomo Kajino Daisuke Inoue Takaaki Ohmori Ken Ueoka Yuki Yamamuro Atsushi Taninaka Hiroyuki Tsuchiya Correlation between lag screw route and the ideal insertion point of the intramedullary nail
description	Abstract Understanding the morphology of the superior aspect of the proximal femur is critical for treating femoral fracture. We assessed the correlation among the ideal insertion point of the femoral nail, femur head-neck axis, and native anteversion. One hundred patients with normal femurs were included in this study. Computed tomography (CT) images of the proximal femur superior aspect and amount of native anteversion were acquired. Generalised Procrustes analysis showed the morphological characteristics of the superior proximal femur according to native anteversion amount. Morphological characteristics were represented by 4 parameters; the correlation between parameters and native anteversion was investigated using CT data. The passing point of the line from the proximal femoral canal parallel to the native anteversion at the greater trochanter was located more posteriorly (mean 35.6%); the passing point of native anteversion was posterior in the femoral neck and head, although the line of the head-neck centre passed more anteriorly at the greater trochanter (mean 67.5%). This posterior translation was significantly associated with native anteversion amount. Morphometric geometric analysis showed that the lag screw could not pass head-neck centre from the nail inserted into proximal femoral canal. Anterior insertion of the nail was needed for positioning the lag screw centre.
format	article
author	Junya Yoshitani Tamon Kabata Yoshitomo Kajino Daisuke Inoue Takaaki Ohmori Ken Ueoka Yuki Yamamuro Atsushi Taninaka Hiroyuki Tsuchiya
author_facet	Junya Yoshitani Tamon Kabata Yoshitomo Kajino Daisuke Inoue Takaaki Ohmori Ken Ueoka Yuki Yamamuro Atsushi Taninaka Hiroyuki Tsuchiya
author_sort	Junya Yoshitani
title	Correlation between lag screw route and the ideal insertion point of the intramedullary nail
title_short	Correlation between lag screw route and the ideal insertion point of the intramedullary nail
title_full	Correlation between lag screw route and the ideal insertion point of the intramedullary nail
title_fullStr	Correlation between lag screw route and the ideal insertion point of the intramedullary nail
title_full_unstemmed	Correlation between lag screw route and the ideal insertion point of the intramedullary nail
title_sort	correlation between lag screw route and the ideal insertion point of the intramedullary nail
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3a07b700b76b4adfb949c0d73942eefd
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Correlation between lag screw route and the ideal insertion point of the intramedullary nail

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