中国组织工程研究 ›› 2023, Vol. 27 ›› Issue (36): 5747-5752.doi: 10.12307/2023.758

• 骨与关节生物力学 bone and joint biomechanics • 上一篇    下一篇

三维测量嵌插型股骨颈骨折后倾角与股骨头坏死的相关性

战红旗1,2,3,马剑雄2,3,崔爽爽2,孙  磊2,3,王  颖2,3,柏豪豪2,3,马信龙2,3   

  1. 1天津医科大学,天津市   300070;2天津市天津医院骨科研究所,天津市   300050;3天津市骨科生物力学与医学工程重点实验室,天津市   300050
  • 收稿日期:2022-10-27 接受日期:2022-12-13 出版日期:2023-12-28 发布日期:2023-03-24
  • 通讯作者: 马信龙,主任医师,天津市天津医院骨科研究所,天津市 300050;天津市骨科生物力学与医学工程重点实验室,天津市 300050
  • 作者简介:战红旗,男,1999年生,山东省青岛市人,天津医科大学在读硕士,主要从事下肢创伤骨折方面的研究。
  • 基金资助:
    国家自然科学基金(81572154,81871777),项目负责人:马信龙;国家自然科学基金(11772226),项目负责人:马剑雄

Correlation between three-dimensional measurement of posterior tilt of impacted femoral neck fracture and femoral head necrosis

Zhan Hongqi1, 2, 3, Ma Jianxiong2, 3, Cui Shuangshuang2, Sun Lei2, 3, Wang Ying2, 3, Bai Haohao2, 3, Ma Xinlong2, 3   

  1. 1Tianjin Medical University, Tianjin 300070, China; 2Institute of Orthopedics, Tianjin Hospital, Tianjin 300050, China; 3Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
  • Received:2022-10-27 Accepted:2022-12-13 Online:2023-12-28 Published:2023-03-24
  • Contact: Ma Xinlong, Chief physician, Institute of Orthopedics, Tianjin Hospital, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
  • About author:Zhan Hongqi, Master candidate, Tianjin Medical University, Tianjin 300070, China; Institute of Orthopedics, Tianjin Hospital, Tianjin 300050, China; Tianjin Key Laboratory of Orthopedic Biomechanics and Medical Engineering, Tianjin 300050, China
  • Supported by:
    the National Natural Science Foundation of China, Nos. 81572154, 81871777 (to MXL); National Natural Science Foundation of China, No. 11772226 (to MJX)

摘要:


文题释义:

嵌插型股骨颈骨折:又称为Garden Ⅰ型骨折,属于未移位型股骨颈骨折,常由于过度外旋导致股骨头外翻和后倾,占股骨颈骨折的11%-25%。

后倾角:是预测骨折移位的基本指标,当髋关节弯曲或抬起时,在轴向平面作用于股骨头上的力,往往会使骨折部位偏转到更后倾的位置,可能与固定失败高度相关。


背景:嵌插型股骨颈骨折临床上通常采用空心钉内固定治疗,既往研究中术前股骨头后倾角被证明与内固定失败相关,但内固定术后股骨头坏死的发生与后倾角关系的相关研究较少。
目的:探讨嵌插型股骨颈骨折三维测量的后倾角与内固定术后股骨头坏死的相关性,并分析其危险因素。
方法:回顾性分析天津市天津医院2016-2020年收治的150例嵌插型股骨颈骨折患者的临床资料,应用三维重建技术测量股骨头后倾角并根据术后是否发生股骨头坏死分为坏死组和非坏死组。单因素分析比较两组间临床资料,多因素logistic回归分析股骨头坏死危险因素,采用受试者操作特征曲线评估后倾角对术后股骨头坏死的预测价值。

结果与结论:①150例患者术后获18-66个月(平均29个月)的随访,共20例(13.3%)发生股骨头坏死;②多因素logistic回归分析显示,后倾角和复位质量C级是发生股骨头坏死的危险因素;③受试者操作特征曲线分析显示,三维测量的后倾角对术后股骨头坏死具有预测价值,截断值为20.74°;④结果表明,对于嵌插型股骨颈骨折患者,后倾角和复位质量C级是闭合复位内固定术后股骨头坏死的危险因素;通过三维重建技术可以准确测量股骨头的后倾角度,后倾角≥20.74°的骨折患者更容易出现术后股骨头坏死。

https://orcid.org/0000-0002-6920-7670 (战红旗) 

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程

关键词: 股骨颈骨折, 股骨头坏死, 后倾角, 骨折固定术, 三维重建

Abstract: BACKGROUND: In clinical practice, impacted femoral neck fractures are usually treated with cannulated screw internal fixation. In previous studies, the preoperative posterior tilt of the femoral head has been shown to be associated with internal fixation failure. However, there are few studies on the occurrence of femoral head necrosis after internal fixation and posterior tilt.
OBJECTIVE: To investigate the correlation between femoral head necrosis and posterior tilt measured by three-dimensional reconstruction and its risk factors after internal fixation of impacted femoral neck fractures.
METHODS: The clinical data of 150 patients with impacted femoral neck fractures admitted to Tianjin Hospital from 2016 to 2020 were retrospectively analyzed. The posterior tilt of the femoral head was measured by a three-dimensional reconstruction technique according to postoperative femoral head necrosis. The patients were divided into the necrosis group and the non-necrosis group. The clinical data were compared between the two groups using single-factor analysis. Risk factors of femoral head necrosis were analyzed by multivariate logistic regression analysis. The predictive value of posterior tilt for postoperative femoral head necrosis was assessed using receiver operating characteristic curves.  
RESULTS AND CONCLUSION: (1) A total of 150 patients were followed up for 18 to 66 months (mean, 29 months) after surgery, and necrosis occurred in 20 patients (13.3%). (2) Multivariate logistic regression analysis exhibited that reduction quality grade C and posterior tilt were risk factors for femoral head necrosis. (3) Receiver operating characteristic curve analysis revealed the predictive value of posterior tilt measured in three dimensions for postoperative femoral head necrosis, with a cut-off value of 20.74°. (4) The results showed that posterior tilt and reduction quality grade C were risk factors for femur head necrosis after closed reduction and internal fixation in patients with impacted femoral neck fractures. The posterior tilt of the femoral head can be accurately measured by three-dimensional reconstruction technology. Patients with posterior tilt ≥20.74° are more likely to experience postoperative femoral head necrosis.

Key words: femoral neck fracture, femoral head necrosis, posterior tilt, fracture fixation, three-dimensional reconstruction

中图分类号: