AAS ›› 2014, Vol. 45 ›› Issue (5): 694-697.doi: 10.3969/j.issn.0529-1356.2014.05.019

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Measurement of the femoral neck torsion angle and anteversion angle by laser projection method

ZHU Qiu-liang 1* XU Bing1 SHEN Liang-hua2 ZHAO Li-lai1 YAN Mao-hua1 WANG Yuan-long1 ZHANG Ying1   

  1. 1. Department of Orthopedics, the People’s Hospital of Anji, Zhejian Huzhou 313300, China; 2. Department of Anatomy, Zhejiang University School of Medicine, Hangzhou 310001, China
  • Received:2014-02-19 Revised:2014-04-13 Online:2014-10-06 Published:2013-10-06
  • Contact: ZHU Qiu-liang1* XU Bing1 SHEN Liang-hua2 ZHAO Li-lai1 YAN Mao-hua1 WANG Yuan-long1 ZHANG Ying1 E-mail:zhuqiuliang666@163.com

Abstract:

Objective To investigate the feasibility of measuring femoral neck torsion angle and anteversion angle by laser projection method. Methods The femoral neck torsion angle and anteversion were observed and described. An angle measuring device was designed and produced. With the device, the femoral torsion angle and anteversion angle were measured by laser projection method two times. Statistical analysis was performed on the measured value, and sides difference. Results The differences between femoral neck torsion angle and anteversion angle were observed. There was no significant difference (P> 0.05, power=100%) between the two measurements by laser projection method. Measurements of the femoral anteversion were 13.58 °±6.55 ° on the left side, and 12.15 °±5.83 °on the right side. Measurements of the femoral neck torsion angle were 18.50 °±7.38 ° on the left and 19.08 °±8.59 ° on the right. There was no significant difference between left and right side (P > 0.05). Conclusion The laser projection method is the effective method in measuring femoral neck torsion angle and anteversion angle, and has excellent repeatability.

Key words: femoral, femoral neck torsion angle, femoral anteversion angle, laser projection method, measure