• 1. Department of Rehabilitation Medicine, Tianjin Hospital, Tianjin, 300211, P. R. China;
  • 2. Department of Bone Tumor, Tianjin Hospital, Tianjin, 300211, P. R. China;
  • 3. Graduate School of Tianjin Medical University, Tianjin, 300070, P. R. China;
HU Yongcheng, Email: yongchenghu@126.com
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Objective To review the research progress of cementless intercalary prosthesis stem. Methods The literature about the cementless intercalary prosthesis in treatment of bone defects of extremities was reviewed, and the designing and application of prosthesis stem were analyzed. Results Cementless intercalary prosthesis has the advantages of good biocompatibility. However, there are also some disadvantages, including the multiple factors affecting the fixation of the prosthesis stem and individual differences in the stability of the prosthesis. The methods to improve the fixation stability of prosthesis stem mainly include the optimization of prosthesis stem shape, addition of auxiliary fixation, and improvement of coating materials on the stem surface as well as porous structure of the stem surface. Among these methods, augment with auxiliary fixation has the most satisfactory effect on improving the stability of prosthesis. However, the deficiency of the method is the increasing risk of the larger incision exposure and surgical trauma. Conclusion Improving the design and fixation method of the cementless intercalary prosthesis stem can further improve the stability of the prosthesis. Under the premise of avoiding increasing surgical trauma as much as possible, addition of the auxiliary fixation can be a feasible choice to improve the fixation stability of prosthesis.

Citation: ZHAO Yunlong, ZHANG Jingyu, ZHANG Haoran, HU Yongcheng. Research progress of cementless intercalary prosthesis stem. Chinese Journal of Reparative and Reconstructive Surgery, 2022, 36(5): 643-647. doi: 10.7507/1002-1892.202112067 Copy

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