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Risk Factors for Neck Shortening in Patients with Valgus Impacted Femoral Neck Fractures Treated with Three Parallel Screws: Is Bone Density an Affecting Factor?
PURPOSE: The purpose of this study is to analyze the relationship between significant femoral neck shortening (SFNS) and bone density after three parallel screw fixation in valgus impacted femoral neck fracture, and to analyze the risk factors for SFNS. MATERIALS AND METHODS: This is retrospective s...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Korean Hip Society
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5729171/ https://www.ncbi.nlm.nih.gov/pubmed/29250503 http://dx.doi.org/10.5371/hp.2017.29.4.277 |
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author | Sung, Yerl-Bo Jung, Eui-Yub Kim, Kyung-Il Kim, Soo-Yeon |
author_facet | Sung, Yerl-Bo Jung, Eui-Yub Kim, Kyung-Il Kim, Soo-Yeon |
author_sort | Sung, Yerl-Bo |
collection | PubMed |
description | PURPOSE: The purpose of this study is to analyze the relationship between significant femoral neck shortening (SFNS) and bone density after three parallel screw fixation in valgus impacted femoral neck fracture, and to analyze the risk factors for SFNS. MATERIALS AND METHODS: This is retrospective study of 83 patients. We performed univariate analysis for patient information, bone density, fracture configuration and screw position divided into SFNS group (n=13) and non-SFNS group (n=70) and performed multivariate analysis using logistic regression model. We also analyzed the relationship between SFNS and complications such as osteonecrosis of femoral head and nonunion. RESULTS: There was a significant difference in age, screw non-parallelism and bone mineral density of intertrochanteric and total hip area in the univariate analysis between the two groups (P<0.05). In multivariate analysis, old age (odds ratio [OR], 1.10; 95% confidence interval [CI], 1.03-1.21) and screw non-parallelism (OR, 2.95; 95% CI, 1.44-6.59) were significant risk factors for SFNS. The incidence of SFNS was significantly higher in the complication group (P=0.027). CONCLUSION: Bone density did not significantly affect SFNS in valgus impacted femoral neck fractures treated with three parallel screws. The risk factors of SFNS were old age and screw non-parallelism. Therefore, we recommend using other fixation method to prevent SFNS in older ages and making the screw position as parallel as possible when performing screw fixation in valgus impacted femoral neck fracture. |
format | Online Article Text |
id | pubmed-5729171 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Korean Hip Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-57291712017-12-15 Risk Factors for Neck Shortening in Patients with Valgus Impacted Femoral Neck Fractures Treated with Three Parallel Screws: Is Bone Density an Affecting Factor? Sung, Yerl-Bo Jung, Eui-Yub Kim, Kyung-Il Kim, Soo-Yeon Hip Pelvis Original Article PURPOSE: The purpose of this study is to analyze the relationship between significant femoral neck shortening (SFNS) and bone density after three parallel screw fixation in valgus impacted femoral neck fracture, and to analyze the risk factors for SFNS. MATERIALS AND METHODS: This is retrospective study of 83 patients. We performed univariate analysis for patient information, bone density, fracture configuration and screw position divided into SFNS group (n=13) and non-SFNS group (n=70) and performed multivariate analysis using logistic regression model. We also analyzed the relationship between SFNS and complications such as osteonecrosis of femoral head and nonunion. RESULTS: There was a significant difference in age, screw non-parallelism and bone mineral density of intertrochanteric and total hip area in the univariate analysis between the two groups (P<0.05). In multivariate analysis, old age (odds ratio [OR], 1.10; 95% confidence interval [CI], 1.03-1.21) and screw non-parallelism (OR, 2.95; 95% CI, 1.44-6.59) were significant risk factors for SFNS. The incidence of SFNS was significantly higher in the complication group (P=0.027). CONCLUSION: Bone density did not significantly affect SFNS in valgus impacted femoral neck fractures treated with three parallel screws. The risk factors of SFNS were old age and screw non-parallelism. Therefore, we recommend using other fixation method to prevent SFNS in older ages and making the screw position as parallel as possible when performing screw fixation in valgus impacted femoral neck fracture. Korean Hip Society 2017-12 2017-12-01 /pmc/articles/PMC5729171/ /pubmed/29250503 http://dx.doi.org/10.5371/hp.2017.29.4.277 Text en Copyright © 2017 by Korean Hip Society http://creativecommons.org/licenses/by-nc/4.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Sung, Yerl-Bo Jung, Eui-Yub Kim, Kyung-Il Kim, Soo-Yeon Risk Factors for Neck Shortening in Patients with Valgus Impacted Femoral Neck Fractures Treated with Three Parallel Screws: Is Bone Density an Affecting Factor? |
title | Risk Factors for Neck Shortening in Patients with Valgus Impacted Femoral Neck Fractures Treated with Three Parallel Screws: Is Bone Density an Affecting Factor? |
title_full | Risk Factors for Neck Shortening in Patients with Valgus Impacted Femoral Neck Fractures Treated with Three Parallel Screws: Is Bone Density an Affecting Factor? |
title_fullStr | Risk Factors for Neck Shortening in Patients with Valgus Impacted Femoral Neck Fractures Treated with Three Parallel Screws: Is Bone Density an Affecting Factor? |
title_full_unstemmed | Risk Factors for Neck Shortening in Patients with Valgus Impacted Femoral Neck Fractures Treated with Three Parallel Screws: Is Bone Density an Affecting Factor? |
title_short | Risk Factors for Neck Shortening in Patients with Valgus Impacted Femoral Neck Fractures Treated with Three Parallel Screws: Is Bone Density an Affecting Factor? |
title_sort | risk factors for neck shortening in patients with valgus impacted femoral neck fractures treated with three parallel screws: is bone density an affecting factor? |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5729171/ https://www.ncbi.nlm.nih.gov/pubmed/29250503 http://dx.doi.org/10.5371/hp.2017.29.4.277 |
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