Chinese Journal of Tissue Engineering Research ›› 2010, Vol. 14 ›› Issue (48): 8988-8992.doi: 10.3969/j.issn.1673-8225.2010.48.015

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Effects of lateral angular deformity of tibial fracture on tibiofemoral joint biomechanics

Zheng Wen-kui1, Peng A-qin2, Liu Yong1, Jiao Jian-bao1, Wang Cong1, Ma Xiao-yong1   

  1. 1 Department of Orthopedics, Affiliated Hospital of Hebei University, Baoding  071000, Hebei Province, China; 2 Trauma Emergency Center, Third Clinical Medical College of Hebei Medical University, Shijiazhuang  050051, Hebei Province, China
  • Online:2010-11-26 Published:2010-11-26
  • Contact: Peng A-qin, Chief physician, Professor, Trauma Emergency Center, Third Clinical Medical College of Hebei Medical University, Shijiazhuang 050051, Hebei Province, China
  • About author:Zheng Wen-kui★, Master, Attending physician, Department of Orthopedics, Affiliated Hospital of Hebei University, Baoding 071000, Hebei Province, China zhengwk625@163.com

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Abstract:

BACKGROUND: The angular deformity of tibial fracture on biomechanical characteristics of knee joint remains controversial.
OBJECTIVE: To evaluate the effect of tibial fracture on biomechanical characters of knee joint and prescribe the most acceptable extent of lateral angular deformity using biomechanics and pressure sensitive film.
METHODS: The six specimens of lower limbs were obtained from fresh human cadavers. The cadaveric specimens were not infected with diseases. Model of lateral angular deformity was established, and tibiofemoral joint contact area, mean stress, and maximum stress were measured under tibial lateral angulation at 5°, 10°, 15° using pressure sensitive film.
RESULTS AND CONCLUSION: The 5° lateral angular deformity had changed the contact character of the tibiofemoral joint. Thus, when dealing with tibial fracture, a lateral angular deformity > 5° should be reduced, and the anatomic position of tibia should be recovered.

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