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Updated: Aug 10, 2026

Individualized Stem-positioning in Calcar-guided Short-stem Total Hip Arthroplasty
Published on: February 27, 2018
A special instrument to accurately and safely remove the femoral head
Helin Feng1, Jin Wang, Yingze Zhang
1Department of Orthopedics, The Fourth Affiliated Hospital of Hebei Medical University, 12 Health Road, Shijiazhuang, 050011, Hebei, People's Republic of China.
Background:
Intracapsular hip fractures occur frequently, and most of them need operation. But current femoral head removal instruments used in the operation have many disadvantages. We optimized them.
Methods:
We added a sleeve to the cork screw to strengthen the torque created by it. A scale is also added to the joint of the sleeve and the cork screw, which can be used to measure the depth of insertion.
Discussion:
The optimized instrument decreased the risk and saved the time of operation.
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