Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (22): 3445-3450.doi: 10.3969/j.issn.2095-4344.2014.22.001

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Application of gyroscope to acetabular cup positioning in total hip arthroplasty

Ge Xing-tao1, Ge Xing-hua2, Shang Chun-nuan2, Wang Zeng-tao3   

  1. 1Southern Medical University, Guangzhou 510515, Guangdong Province, China; 2Rizhao Municipal People’s Hospital, Rizhao 276800, Shandong Province, China; 3Shandong Provincial Hospital, Jinan 250021, Shandong Province, China
  • Revised:2014-04-28 Online:2014-05-28 Published:2014-05-28
  • About author:Ge Xing-tao, M.D., Attending physician, Southern Medical University, Guangzhou 510515, Guangdong Province, China

Abstract:

 BACKGROUND: Good position of acetabular prosthesis during total hip replacement plays a key role in success of the operation. Traditional location tool has poor accuracy, is too complicated, and limits its application.

OBJECTIVE: To compare the advantages and disadvantages of gyroscope with the traditional technique in acetabular component orientation in total hip arthroplasty.
METHODS: Using lateral approach, physicians with different experiences used traditional technique to locate acetabular cup 100 times (20 times in each person; 40° abduction and 15° anteversion), and then used gyroscope to locate 60 times at the same angle in the same plastic hip model. The error between the planed and measured values was recorded.

RESULTS AND CONCLUSION: Compared to the traditional technique, the error of the abduction and anteversion decreased obviously. These indicated that the gyroscope can make the orientation of acetabular component more precise in total hip arthroplasty.


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


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Key words: arthroplasty, replacement, hip, acetabulum, hip prosthesis, prosthesis fitting

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