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Related Experiment Video

Updated: Sep 23, 2025

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
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[Research progress of cementless intercalary prosthesis stem].

Yunlong Zhao1, Jingyu Zhang2, Haoran Zhang3

  • 1Department of Rehabilitation Medicine, Tianjin Hospital, Tianjin, 300211, P. R. China.

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi = Zhongguo Xiufu Chongjian Waike Zazhi = Chinese Journal of Reparative and Reconstructive Surgery
|May 16, 2022
PubMed
Summary
This summary is machine-generated.

Cementless intercalary prosthesis stems offer good biocompatibility but face fixation challenges. Optimizing stem design and employing auxiliary fixation can enhance stability, though surgical trauma must be minimized.

Keywords:
Cementless intercalary prosthesis stemauxiliary fixationporous structurestabilitysurface coating

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Area of Science:

  • Orthopedic surgery
  • Biomaterials science

Background:

  • Cementless intercalary prostheses are used for bone defects in extremities.
  • Their design and fixation methods are critical for successful outcomes.
  • Challenges include factors affecting stem fixation and individual stability variations.

Purpose of the Study:

  • To review research progress on cementless intercalary prosthesis stems.
  • To analyze the design and application of these prosthesis stems.

Main Methods:

  • Literature review of cementless intercalary prosthesis in treating extremity bone defects.
  • Analysis of prosthesis stem design and application.

Main Results:

  • Cementless intercalary prostheses exhibit good biocompatibility.
  • Key challenges involve stem fixation stability and individual patient variability.
  • Methods to improve fixation include optimizing stem shape, auxiliary fixation, and surface modifications (coatings, porous structures).
  • Auxiliary fixation shows the most promise for stability but may increase surgical trauma.

Conclusions:

  • Improving cementless intercalary prosthesis stem design and fixation enhances stability.
  • Auxiliary fixation is a feasible option to boost stability while minimizing surgical trauma.