Which non-infection related risk factors are associated with impaired proximal femur fracture healing in patients under the age of 70 years?

Abstract Background/purpose Impaired healing is a feared complication with devastating outcomes for each patient. Most studies focus on geriatric fracture fixation and assess well known risk factors such as infections. However, risk factors, others than infections, and impaired healing of proximal f...

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Main Authors: Sascha Halvachizadeh, David Paul Martin, Roman Pfeifer, Gerrolt Nico Jukema, Boyko Gueorguiev, Hans-Christoph Pape, Till Berk
Format: Article
Language:English
Published: BMC 2023-05-01
Series:BMC Musculoskeletal Disorders
Subjects:
Online Access:https://doi.org/10.1186/s12891-023-06539-y
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author Sascha Halvachizadeh
David Paul Martin
Roman Pfeifer
Gerrolt Nico Jukema
Boyko Gueorguiev
Hans-Christoph Pape
Till Berk
author_facet Sascha Halvachizadeh
David Paul Martin
Roman Pfeifer
Gerrolt Nico Jukema
Boyko Gueorguiev
Hans-Christoph Pape
Till Berk
author_sort Sascha Halvachizadeh
collection DOAJ
description Abstract Background/purpose Impaired healing is a feared complication with devastating outcomes for each patient. Most studies focus on geriatric fracture fixation and assess well known risk factors such as infections. However, risk factors, others than infections, and impaired healing of proximal femur fractures in non-geriatric adults are marginally assessed. Therefore, this study aimed to identify non-infection related risk factors for impaired fracture healing of proximal femur fractures in non-geriatric trauma patients. Methods This study included non-geriatric patients (aged 69 years and younger) who were treated between 2013 and 2020 at one academic Level 1 trauma center due to a proximal femur fracture (PFF). Patients were stratified according to AO/OTA classification. Delayed union was defined as failed callus formation on 3 out of 4 cortices after 3 to 6 months. Nonunion was defined as lack of callus-formation after 6 months, material breakage, or requirement of revision surgery. Patient follow up was 12 months. Results This study included 150 patients. Delayed union was observed in 32 (21.3%) patients and nonunion with subsequent revision surgery occurred in 14 (9.3%). With an increasing fracture classification (31 A1 up to 31 A3 type fractures), there was a significantly higher rate of delayed union. Additionally, open reduction and internal fixation (ORIF) (OR 6.17, (95% CI 1.54 to 24.70, p ≤ 0.01)) and diabetes mellitus type II (DM) (OR 5.74, (95% CI 1.39 to 23.72, p = 0.016)), were independent risk factors for delayed union. The rate of nonunion was independent of fracture morphology, patient’s characteristics or comorbidities. Conclusion Increasing fracture complexity, ORIF and diabetes were found to be associated with delayed union of intertrochanteric femur fractures in non-geriatric patients. However, these factors were not associated with the development of nonunion.
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spelling doaj.art-deafa97b90204fa4976e072dfefc89d42023-05-21T11:05:16ZengBMCBMC Musculoskeletal Disorders1471-24742023-05-012411810.1186/s12891-023-06539-yWhich non-infection related risk factors are associated with impaired proximal femur fracture healing in patients under the age of 70 years?Sascha Halvachizadeh0David Paul Martin1Roman Pfeifer2Gerrolt Nico Jukema3Boyko Gueorguiev4Hans-Christoph Pape5Till Berk6Department of Trauma, University Hospital ZurichDepartment of Orthopedics and Rehabilitation, University of WisconsinDepartment of Trauma, University Hospital ZurichDepartment of Trauma, University Hospital ZurichAO Research Institute DavosDepartment of Trauma, University Hospital ZurichDepartment of Trauma, University Hospital ZurichAbstract Background/purpose Impaired healing is a feared complication with devastating outcomes for each patient. Most studies focus on geriatric fracture fixation and assess well known risk factors such as infections. However, risk factors, others than infections, and impaired healing of proximal femur fractures in non-geriatric adults are marginally assessed. Therefore, this study aimed to identify non-infection related risk factors for impaired fracture healing of proximal femur fractures in non-geriatric trauma patients. Methods This study included non-geriatric patients (aged 69 years and younger) who were treated between 2013 and 2020 at one academic Level 1 trauma center due to a proximal femur fracture (PFF). Patients were stratified according to AO/OTA classification. Delayed union was defined as failed callus formation on 3 out of 4 cortices after 3 to 6 months. Nonunion was defined as lack of callus-formation after 6 months, material breakage, or requirement of revision surgery. Patient follow up was 12 months. Results This study included 150 patients. Delayed union was observed in 32 (21.3%) patients and nonunion with subsequent revision surgery occurred in 14 (9.3%). With an increasing fracture classification (31 A1 up to 31 A3 type fractures), there was a significantly higher rate of delayed union. Additionally, open reduction and internal fixation (ORIF) (OR 6.17, (95% CI 1.54 to 24.70, p ≤ 0.01)) and diabetes mellitus type II (DM) (OR 5.74, (95% CI 1.39 to 23.72, p = 0.016)), were independent risk factors for delayed union. The rate of nonunion was independent of fracture morphology, patient’s characteristics or comorbidities. Conclusion Increasing fracture complexity, ORIF and diabetes were found to be associated with delayed union of intertrochanteric femur fractures in non-geriatric patients. However, these factors were not associated with the development of nonunion.https://doi.org/10.1186/s12891-023-06539-yTraumatic proximal femur fracturesPolytraumaNonunionDelayed unionRisk factorsNon-geriatric
spellingShingle Sascha Halvachizadeh
David Paul Martin
Roman Pfeifer
Gerrolt Nico Jukema
Boyko Gueorguiev
Hans-Christoph Pape
Till Berk
Which non-infection related risk factors are associated with impaired proximal femur fracture healing in patients under the age of 70 years?
BMC Musculoskeletal Disorders
Traumatic proximal femur fractures
Polytrauma
Nonunion
Delayed union
Risk factors
Non-geriatric
title Which non-infection related risk factors are associated with impaired proximal femur fracture healing in patients under the age of 70 years?
title_full Which non-infection related risk factors are associated with impaired proximal femur fracture healing in patients under the age of 70 years?
title_fullStr Which non-infection related risk factors are associated with impaired proximal femur fracture healing in patients under the age of 70 years?
title_full_unstemmed Which non-infection related risk factors are associated with impaired proximal femur fracture healing in patients under the age of 70 years?
title_short Which non-infection related risk factors are associated with impaired proximal femur fracture healing in patients under the age of 70 years?
title_sort which non infection related risk factors are associated with impaired proximal femur fracture healing in patients under the age of 70 years
topic Traumatic proximal femur fractures
Polytrauma
Nonunion
Delayed union
Risk factors
Non-geriatric
url https://doi.org/10.1186/s12891-023-06539-y
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