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Chinese Journal of Joint Surgery(Electronic Edition) ›› 2020, Vol. 14 ›› Issue (01): 33-39. doi: 10.3877/cma.j.issn.1674-134X.2020.01.006

Special Issue:

• Clinical Research • Previous Articles     Next Articles

Knee joint kinematic characteristics of general joint hypermobility patients during walking

Guoqing Zhong1, Xiaolong Zeng2, Yu Xie3, Junya Lai3, Chunsheng Liu3, Zehao Zheng3, Shouxuan Chen3, Jie Huang3, Lexi Huang3, Zhuocheng Xu3, Junhan Wu3, Wenhan Huang2, Limin Ma2, Ming Wang2, Liping Li3, Yu Zhang2,()   

  1. 1. Department of Orthopedics Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou 510000, China; Shantou University Medical College, Shantou 515041, China
    2. Department of Orthopedics Center, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Guangzhou 510000, China
    3. Shantou University Medical College, Shantou 515041, China
  • Received:2020-02-03 Online:2020-02-01 Published:2020-02-01
  • Contact: Yu Zhang
  • About author:
    Corresponding author: Zhang Yu, Email:

Abstract:

Objective

To study the knee joint kinematic characteristics of general joint hypermobility (GJH) patients during level and downhill walking.

Methods

18-24-year-old healthy college volunteers were recruited(Exclude the history of knee joint injury, etc) and divided into two groups: general joint hypermobility group (GJH group)(Beighton score ≥ 5, n=21) and normal group (n=49). The demographic information and questionnaires like IKDC 2000, Lysholm score of all subjects were investigated. The Beighton scoring system were assessed by the experienced operator. The gait analysis system was used to collect the data of the knee joint kinematic parameters. Independent sample t test and chi-square test were used for statistical analysis.

Results

There was no significant difference in flexion and extension angles between the GJH group and the normal group during level walking. However, compared to the normal group the GJH group showed a greater flexion angle in the swing phase than the normal group when walking downhill (maximum flexion angle): (67.40±5.48)°vs (62.27±6.57)°(t=-2.961, P<0.01). The GJH group showed a greater external angle and anterior translation during level walking (anterior/posterior translation in the middle stance phase, 12% gait) and downhill walking: (0.73±0.45)mm vs (0.23±0.27)mm(t =-4.713, P<0.001). The greater external angle and anterior translation (anterior/posterior translation in the middle stance phase, 12% gait): (0.78±0.62)mm vs (0.20±0.36)mm(Z =-3.873, P<0.001)increased more obviously when walking downhill.

Conclusions

The GJH patients present greater changes in gait parameters when walking downhill, which may be compensated by the muscles around the knee joint. As for the abnormal gait parameters, it is possible to enhance the muscle strength around the knee joint of the GJH patients through gait retraining and joint stability training, so as to enhance the stability of the knee joint.

Key words: Joint laxity, Knee joint, Biomechanical phenomena, Walking

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