Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (4): 626-629.doi: 10.3969/j.issn.1673-8225.2012.04.013

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Total hip arthroplasty with large-diameter metal/metal femoral head for treatment of avascular necrosis of the femoral head  

Zhang Hai-ning, Lü Cheng-yu, Xu Hao, Wang Ying-zhen   

  1. Department of Joint Surgery, Affiliated Hospital of Qingdao University, Qingdao  266003, Shandong Province, China
  • Received:2011-07-13 Revised:2011-10-31 Online:2012-01-22 Published:2014-04-04
  • Contact: Wang Ying-zhen, Master, Chief physician, Department of Joint Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China hunterzhhn@yahoo.com.cn
  • About author:Wang Ying-zhen, Master, Chief physician, Department of Joint Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, Shandong Province, China hunterzhhn@yahoo.com.cn
  • Supported by:

    National Natural Science Foundation of China, No. 30801167*, 81171774*

Abstract:

BACKGROUND: The new generation of large-diameter metal has the advantages of longer service life, low abrasion and low dislocation rate in using for metal total hip compared to the high wear rate and high rate of acetabular loosening of previous large-diameter femoral head.
OBJECTIVE: To assess the clinical effects of total hip arthroplasty with large-diameter metal/metal femoral head in treatment of patients with avascular necrosis of the femoral head. 
METHODS: Twenty-six patients with avascular necrosis of femoral head underment unilateral total hip arthroplasty with large-diameter metal/metal femoral head were involved for retrospective analysis.
RESULTS AND CONCLUSION: All patients were followed up. The prosthesis was in the good position, and no loosening of the prosthesis and dislocation were seen by imaging during follow-up. The Harris score was increased from 49.5 before operation to 92.5 after arthroplasty. The excellent and good rate was 96%. The overall satisfaction rate was 96%. There was no prosthesis loosening, dislocation and infection before and after arthroplasty and during the follow-up. Good short-term effects can be obtained from the total hip arthroplasty with large-diameter metal/metal femoral head in treatment of patients with avascular necrosis of the femoral head. No significant changes in renal function of this treatment can be seen in short time.

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