Impact of Wedge Effect on Outcomes of Intertrochanteric Fractures Treated with Intramedullary Proximal Femoral Nail

The purpose of this study is to investigate the risk factors for wedge effect and its relevance between blade cut-out in patients with intertrochanteric fractures (ITF) treated with proximal femoral nail antirotation II (PFNA-II). A total of 113 patients with ITF treated with PFNA-II between 2012 an...

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Autores principales: Shen-Ho Yen, Cheng-Chang Lu, Cheng-Jung Ho, Hsuan-Ti Huang, Hung-Pin Tu, Je-Ken Chang, Chung-Hwan Chen, Sung-Yen Lin
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/e25f73c9622a40ea9e5e7e5971d1d8e3
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spelling oai:doaj.org-article:e25f73c9622a40ea9e5e7e5971d1d8e32021-11-11T17:43:58ZImpact of Wedge Effect on Outcomes of Intertrochanteric Fractures Treated with Intramedullary Proximal Femoral Nail10.3390/jcm102151122077-0383https://doaj.org/article/e25f73c9622a40ea9e5e7e5971d1d8e32021-10-01T00:00:00Zhttps://www.mdpi.com/2077-0383/10/21/5112https://doaj.org/toc/2077-0383The purpose of this study is to investigate the risk factors for wedge effect and its relevance between blade cut-out in patients with intertrochanteric fractures (ITF) treated with proximal femoral nail antirotation II (PFNA-II). A total of 113 patients with ITF treated with PFNA-II between 2012 and 2016 were retrospectively analyzed. Radiographic variables including preoperative fracture pattern, fracture classification, lateral wall fracture, and postoperative neck–shaft angle (NSA), femoral offset (FO), blade cut-out, and Parker’s ratio were measured for analysis. An average of 4.16° of varus malalignment in NSA and 5.5 mm of femoral shaft lateralization in FO was found post-operatively. The presence of lateral wall fracture was significantly related to post-operative varus change of NSA (<i>p</i> < 0.05). After at least one year of follow up, the blade cut-out rate was 2.65% (3/113), and Parker’s ratio was significantly higher in patients with blade cut-out (<i>p</i> = 0.0118). This study concluded that patients with ITF-present preoperative lateral wall fracture and postoperative higher Parker’s ratio in AP radiography showed higher incidence of wedge effect that might increase risk of blade cut out.Shen-Ho YenCheng-Chang LuCheng-Jung HoHsuan-Ti HuangHung-Pin TuJe-Ken ChangChung-Hwan ChenSung-Yen LinMDPI AGarticlecut-outfemoral offsetintertrochanteric fractureneck-shaft anglewedge effectMedicineRENJournal of Clinical Medicine, Vol 10, Iss 5112, p 5112 (2021)
institution DOAJ
collection DOAJ
language EN
topic cut-out
femoral offset
intertrochanteric fracture
neck-shaft angle
wedge effect
Medicine
R
spellingShingle cut-out
femoral offset
intertrochanteric fracture
neck-shaft angle
wedge effect
Medicine
R
Shen-Ho Yen
Cheng-Chang Lu
Cheng-Jung Ho
Hsuan-Ti Huang
Hung-Pin Tu
Je-Ken Chang
Chung-Hwan Chen
Sung-Yen Lin
Impact of Wedge Effect on Outcomes of Intertrochanteric Fractures Treated with Intramedullary Proximal Femoral Nail
description The purpose of this study is to investigate the risk factors for wedge effect and its relevance between blade cut-out in patients with intertrochanteric fractures (ITF) treated with proximal femoral nail antirotation II (PFNA-II). A total of 113 patients with ITF treated with PFNA-II between 2012 and 2016 were retrospectively analyzed. Radiographic variables including preoperative fracture pattern, fracture classification, lateral wall fracture, and postoperative neck–shaft angle (NSA), femoral offset (FO), blade cut-out, and Parker’s ratio were measured for analysis. An average of 4.16° of varus malalignment in NSA and 5.5 mm of femoral shaft lateralization in FO was found post-operatively. The presence of lateral wall fracture was significantly related to post-operative varus change of NSA (<i>p</i> < 0.05). After at least one year of follow up, the blade cut-out rate was 2.65% (3/113), and Parker’s ratio was significantly higher in patients with blade cut-out (<i>p</i> = 0.0118). This study concluded that patients with ITF-present preoperative lateral wall fracture and postoperative higher Parker’s ratio in AP radiography showed higher incidence of wedge effect that might increase risk of blade cut out.
format article
author Shen-Ho Yen
Cheng-Chang Lu
Cheng-Jung Ho
Hsuan-Ti Huang
Hung-Pin Tu
Je-Ken Chang
Chung-Hwan Chen
Sung-Yen Lin
author_facet Shen-Ho Yen
Cheng-Chang Lu
Cheng-Jung Ho
Hsuan-Ti Huang
Hung-Pin Tu
Je-Ken Chang
Chung-Hwan Chen
Sung-Yen Lin
author_sort Shen-Ho Yen
title Impact of Wedge Effect on Outcomes of Intertrochanteric Fractures Treated with Intramedullary Proximal Femoral Nail
title_short Impact of Wedge Effect on Outcomes of Intertrochanteric Fractures Treated with Intramedullary Proximal Femoral Nail
title_full Impact of Wedge Effect on Outcomes of Intertrochanteric Fractures Treated with Intramedullary Proximal Femoral Nail
title_fullStr Impact of Wedge Effect on Outcomes of Intertrochanteric Fractures Treated with Intramedullary Proximal Femoral Nail
title_full_unstemmed Impact of Wedge Effect on Outcomes of Intertrochanteric Fractures Treated with Intramedullary Proximal Femoral Nail
title_sort impact of wedge effect on outcomes of intertrochanteric fractures treated with intramedullary proximal femoral nail
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/e25f73c9622a40ea9e5e7e5971d1d8e3
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