NDLI: Biomechanical analysis of two medial buttress plate fixation methods to treat Pauwels type III femoral neck fractures

Content Provider	Springer Nature : BioMed Central
Author	Liu, Jichao Li, Zhengwei Ding, Jie Huang, Bingzhe Piao, Chengdong
Abstract	Background Femoral neck fractures in young people are usually Pauwels Type III fractures. The common treatment method are multiple parallel cannulated screws or dynamic hip screw sliding compression fixation. Due to the huge shear stress, the rate of complications such as femoral head necrosis and nonunion is still high after treatment. The aim of our study was to compare the stabilities of two fixation methods in fixating pauwels type III femoral neck fractures. Methods All biomimetic fracture samples are fixed with three cannulated screws combined with a medial buttress plate. There were two fixation groups for the buttress plate and proximal fracture fragment: Group A, long screw (40 mm); Group B, short screw (6 mm). Samples were subjected to electrical strain measurement under a load of 500 N, axial stiffness was measured, and then the samples were axially loaded until failure. More than 5 mm of displacement or synthetic bone fracture was considered as construct failure. Results There were no significant differences in failure load (P = 0.669), stiffness (P = 0.842), or strain distribution (P > 0.05) between the two groups. Conclusions Unicortical short screws can provide the same stability as long screws for Pauwels Type III Femoral Neck Fractures.
Related Links	https://bmcmusculoskeletdisord.biomedcentral.com/counter/pdf/10.1186/s12891-022-05014-4.pdf
Ending Page	7
Page Count	7
Starting Page	1
File Format	HTM / HTML
ISSN	14712474
DOI	10.1186/s12891-022-05014-4
Journal	BMC Musculoskeletal Disorders
Issue Number	1
Volume Number	23
Language	English
Publisher	BioMed Central
Publisher Date	2022-01-14
Access Restriction	Open
Subject Keyword	Orthopedics Rehabilitation Rheumatology Sports Medicine Internal Medicine Epidemiology Femoral neck fracture Biomechanics Pauwels III Medial buttress plate
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Rheumatology
Journal Impact Factor	2.2/2023
5-Year Journal Impact Factor	2.6/2023

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