伸膝装置联合重排术治疗复发性髌骨脱位术后运动学分析

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Abstract Objective To compare the kinematic changes of knee joint before and after knee extensor apparatus rearrangement in the treatment of recurrent patellar dislocation.Methods 45 patients (45 knees) with recurrent patellar dislocation and anchor-assisted extensor apparatus of the knee rearrangement were selected from the First Affiliated Hospital of Kunming Medical University from January 2016 to October 2021.The knee joint kinematics data of 45 normal subjects were collected，including 45 cases in the operation group.There were 21 males and 24 females，aged from 12 to 16 years old，with an average age of (13.0±1.25)years old.There were 20 cases in the right knee and 25 cases in the left knee.The control group had 45 healthy volunteers，including 23 males and 22 females，aged from 12 to 16 years old，with an average age of (14.0±0.75)years old.There were 22 cases of the right knee and 23 cases of the left knee.The kinematic data of the affected knee joint were recorded before and 12 months after operation，the range of motion，step number and step length of 6 degrees of freedom were compared between the affected knee joint and the normal knee joint 12 months after operation.Results (1)At 12 months after operation，the maximum knee extension angle decreased (P＜0.05)，the average step decreased (P＜0.05)，and the average step length changed (P＜0.05).(2)12 months after operation，there was no difference in knee joint valgus angle，internal and external rotation angle，flexion and extension angle，anterior and posterior displacement，upper and lower displacement，internal and external displacement，step number and step length between patients and normal subjects (P＞0.05).Conclusion (1) Satisfactory early knee function can be obtained in the treatment of recurrent patellar dislocation with rearrangement of extensor apparatus of the knee.(2)Knee joint kinematics analysis can more objectively evaluate the dynamic situation of knee joint before and after operation，which is helpful to evaluate the curative effect.

Key words： anchor extensor apparatus of the knee rearrangement recurrent patellar dislocation kinematic analysis of knee joint

Corresponding Authors: Li Yanlin

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	Cai Guofeng
	Li Yanlin
	Ning Ziwen
	Han Rui
	Jia Di
	Li Song
	Song En
	Wang Xu

Cite this article:

Cai Guofeng,Li Yanlin,Ning Ziwen, et al. Kinematics Analysis of Knee Extensor Apparatus Rearrangement for Recurrent Patellar Dislocation[J]. sygkzz, 2022, 28(11): 971-.

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http://www.sygkzz.com/EN/ OR http://www.sygkzz.com/EN/Y2022/V28/I11/971

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[1]	. [J]. sygkzz, 2022, 28(7): 663-666.