股骨颈骨折空间移位的三维重建研究及改良Garden分型的提出

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Abstract Objective To discuss the disadvantage of Garden’s classification and to propose modified Garden’s classification by measuring the spatial displacement parameters of the femoral head.Methods Totally 160 cases of femoral neck fracture patients were selected, including Garden I,Ⅱ,III,and IV each 40 cases,and Garden Ⅰ included impacted femoral neck fracture 34 cases and incomplete femoral neck fracture 6 cases.The bilateral proximal femurs of each patient were scanned by CT and reconstructed by professional software.Normal femur model was registered with fracture mirror model, key points were marked at the two models,and the parameters of femoral head displacement were measured.Four groups of patients with femoral head space displacement parameters were compared.Results The femoral head displacement angle of impacted femoral neck fracture group was 18.06°±10.77°,and 30% (10/34) impacted femoral neck fracture head space displacement were more than 20°.Six cases of incomplete femoral neck fractures showed on X-ray films,but only 3 cases were incomplete femoral neck fractures by CT scanning and three-dimensional reconstruction.The femoral head displacement angle was 16.79°±9.98° in Garden type Ⅱ,and 25% (10/40) Garden typeⅡ femoral neck fracture head spatial displacement were more than 20°. In the Garden type III and Garden type IV the femoral head center displacement distance were 14.36±5.61 mm and 18.77±5.45mm,respectively.There was not statistical significance of the parameters of femoral head displacement of impacted femoral neck fracture between Garden type I and Garden type Ⅱ (P＞0.05) .Femoral head displacement parameters of Garden type IV were compared with those of the other three groups,and the differences were statistically significant (P＜0.05).Conclusion Impacted femoral neck fracture is defined as a non-displaced fracture,which was with a large deviation,no There was no significant difference in the head displacement parameters of impacted femoral neck fracture and GardenⅡ type, Garden’s classification has certain limitations,and modified Garden’s classification is more suitable for clinics.

Key words： Femoral neck fracture Three-dimensional reconstruction Spatial Displacement Modified Garden’s classification

Received: 31 December 2017

PACS:

R687.4

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	Articles by authors
	DU Changling
	SHI Hui
	WANG Jianming
	MENG Tao
	REN Qiang
	XU Chuang
	LIU Mingting

Cite this article:

DU Changling,SHI Hui,WANG Jianming, et al. Three-dimensional reconstruction study of the displacement of femoral neck fractures and proposal of modified Garden’s classification[J]. 滨州医学院学报, 2018, 41(3): 161-164.

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http://manu58.magtech.com.cn/Jwk_bzyxy/EN/ OR http://manu58.magtech.com.cn/Jwk_bzyxy/EN/Y2018/V41/I3/161

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