首页|Proximal Femur Bionic Nail(PFBN):A Panacea for Unstable Intertrochanteric Femur Fracture

Proximal Femur Bionic Nail(PFBN):A Panacea for Unstable Intertrochanteric Femur Fracture

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With the aging population,intertrochanteric femur fracture in the elderly has become one of the most serious public health issues and a hot topic of research in trauma orthopedics.Due to the limitations of internal fixation techniques and the insufficient mechanical design of nails,the occurrence of compli-cations delays patient recovery after surgical treatment.Design of a proximal femur bionic nail(PFBN)based on Zhang's N triangle theory provides triangular supporting fixation,which dramatically decreases the occurrence of complications and has been widely used for clinical treatment of unstable intertrochan-teric femur fracture worldwide.In this work,we developed an equivalent biomechanical model to ana-lyze improvement in bone remodeling of unstable intertrochanteric femur fracture through PFBN use.The results show that compared with proximal femoral nail antirotation(PFNA)and InterTan,PFBN can dramatically decrease the maximum strain in the proximal femur.Based on Frost's mechanostat the-ory,the local mechanical environment in the proximal femur can be regulated into the medium overload region by using a PFBN,which may render the proximal femur in a state of physiological overload,favor-ing post-operative recovery of intertrochanteric femur fracture in the elderly.This work shows that PFBN may constitute a panacea for unstable intertrochanteric femur fracture and provides insights into improving methods of internal fixation.

Intertrochanteric femur fractureInternal fixationProximal femur bionic nail(PFBN)BiomechanicsBone remodeling

Kaixuan Zhang、Wei Chen、Yingze Zhang

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School of Medicine,Nankai University,Tianjin 300071,China

Department of Orthopedic Surgery of Hebei Province,The Third Hospital of Hebei Medical University,Shijiazhuang 050051,China

Key Laboratory of Biomechanics of Hebei Province,Orthopaedic Research Institute of Hebei Province,Shijiazhuang 050051,China

National Health Commission(NHC)Key Laboratory of Intelligent Orthopeadic Equipment,The Third Hospital of Hebei Medical University,Shijiazhuang 050051,China

Chinese Academy of Engineering,Beijing 100088,Chin

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities,Nankai UniversityFundamental Research Funds for the Central Universities,Nankai University

321300528207244782272578730-C02922112730-DK2300010314

2024

10.1016/j.eng.2024.01.010

工程(英文)

工程(英文)

CSTPCDEI
ISSN：2095-8099
年,卷(期)：2024.37(6)
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