Analysis of the Radiological Anatomy of the Proximal Femur after the Intramedullary Nailing of Trochanteric Fractures
- 作者: Maiorov B.A.1,2,3, Belenkiy I.G.1,2, Sergeev G.D.1,2, Endovitskiy I.A.3, Sergeeva M.A.2, Isakhanyan D.A.1
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隶属关系:
- St. Petersburg I.I. Dzhanelidze Research Institute of Emergency Medicine
- Saint Petersburg State University
- Interdistrict Clinical Hospital of Vsevolozhsk
- 期: 卷 31, 编号 1 (2025)
- 页面: 55-67
- 栏目: Clinical studies
- URL: https://journals.rcsi.science/2311-2905/article/view/287978
- DOI: https://doi.org/10.17816/2311-2905-17575
- ID: 287978
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Background. Despite the high rate of the intramedullary osteosynthesis of proximal femur fractures, the incidence of implant-associated complications exceeds 50%. Poor reduction and incorrect implant positioning significantly increase the risk of mechanical complications and the frequency of unsatisfactory treatment outcomes.
The aim of the study was to evaluate various fragment positions after the intramedullary nailing of proximal femur fractures using the developed radiological criteria for assessing the quality of reduction, and to determine the association between the quality of the restoration of the proximal femur, implant position and fracture type.
Methods. In a retrospective single-center study we analyzed the primary X-rays of 108 patients with type 31A fractures. Radiological criteria were preliminarily defined. According to them, the position of the fragments and implants was considered satisfactory if the value of the neck-diaphyseal angle was more than 125°, anteversion did not exceed 20°, medial diastasis was not more than 10 mm, and there were no negative medial support, no femoral neck lengthening of more than 10 mm compared with the healthy side, and no penetration of the blade into the joint. Patients were divided into three groups according to the fracture type. We analyzed and compared the proportions of satisfactory and unsatisfactory radiological results within the groups and between them.
Results. Satisfactory reduction was noted in 83 patients (76.9%) out of 108, unsatisfactory — in 25 patients (23.1%), and 16 patients (14.8%) had incorrect implant position. Patients with type 31A1 fractures were 3.5 times less likely to have an unsatisfactory reduction than patients with type 31A2 fractures (OR 3.511; 95% CI 1.202-10.261) and 6.7 times less likely to have an unsatisfactory reduction than patients with type 31A3 fractures (OR 6.714; 95% CI 1.685-26.752). The probability of incorrect implant positioning was 6 times higher in type 31A3 fractures than in type 31A1 fractures (OR 6.000; 95% CI 1.410-25.528).
Conclusion. To improve the quality of surgical treatment, it is worth paying an increased attention to the quality of the achieved reduction, implant selection, technical peculiarities of the fixation of types A2 and A3 fractures, improvement of preoperative planning algorithms, as well as development of criteria for intraoperative radiological assessment of the quality of the restoration of the proximal femur anatomy.
作者简介
Boris Maiorov
St. Petersburg I.I. Dzhanelidze Research Institute of Emergency Medicine; Saint Petersburg State University; Interdistrict Clinical Hospital of Vsevolozhsk
Email: bmayorov@mail.ru
ORCID iD: 0000-0003-1559-1571
Cand. Sci. (Med.)
俄罗斯联邦, St. Petersburg; St. Petersburg; VsevolozhskIgor Belenkiy
St. Petersburg I.I. Dzhanelidze Research Institute of Emergency Medicine; Saint Petersburg State University
编辑信件的主要联系方式.
Email: belenkiy.trauma@mail.ru
ORCID iD: 0000-0001-9951-5183
Dr. Sci. (Med.)
俄罗斯联邦, St. Petersburg; St. PetersburgGennadii Sergeev
St. Petersburg I.I. Dzhanelidze Research Institute of Emergency Medicine; Saint Petersburg State University
Email: gdsergeev@gmail.com
ORCID iD: 0000-0002-8898-503X
Cand. Sci. (Med.)
俄罗斯联邦, St. Petersburg; St. PetersburgIvan Endovitskiy
Interdistrict Clinical Hospital of Vsevolozhsk
Email: bmayorov@mail.ru
ORCID iD: 0009-0005-1872-639X
俄罗斯联邦, Vsevolozhsk
Mariya Sergeeva
Saint Petersburg State University
Email: masharik1990@mail.ru
ORCID iD: 0009-0003-3255-1771
俄罗斯联邦, St. Petersburg
David Isakhanyan
St. Petersburg I.I. Dzhanelidze Research Institute of Emergency Medicine
Email: gdsergeev@gmail.com
ORCID iD: 0009-0008-2194-8673
俄罗斯联邦, St. Petersburg
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