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双极髋关节假体内部头部的拆卸

Disassembly of the inner head of a bipolar hip prosthesis.

作者信息

Toyota Tsuyoshi, Horiuchi Hiroshi, Nakamura Yoshiyuki, Yamazaki Ikuya, Takizawa Tsutomu

机构信息

Department of Orthopedic Surgery, Nagano Matsushiro General Hospital, Nagano, Japan.

出版信息

Arthroplast Today. 2018 Aug 31;4(3):266-269. doi: 10.1016/j.artd.2018.02.012. eCollection 2018 Sep.

DOI:10.1016/j.artd.2018.02.012
PMID:30186902
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6123176/
Abstract

We report an extremely rare case of inner head displacement from the stem of a bipolar hip prosthesis (BHP). An 88-year-old woman underwent BHP implantation for right femoral neck fracture. However, severe right hip joint pain occurred 12 days after surgery. A plain radiogram film revealed displacement of the inner head from the neck of the stem, accompanied by sinking of the stem. At reoperation, the inner head was disassembled from the stem, and Vancouver type A1 fracture was confirmed. Disassembly may have been caused by the pumping phenomenon or micromovement of the stem due to periprosthetic fracture. To our knowledge, this is the first report about disassembly of the BHP inner head, probably due to periprosthetic fracture.

摘要

我们报告了一例极为罕见的双极髋关节假体（BHP）柄部内头移位病例。一名88岁女性因右侧股骨颈骨折接受了BHP植入手术。然而，术后12天出现了严重的右髋关节疼痛。X线平片显示内头从柄部颈部移位，同时柄部下沉。再次手术时，内头从柄部分离，确诊为温哥华A型1骨折。分离可能是由于假体周围骨折导致的柄部抽吸现象或微动引起的。据我们所知，这是首例关于BHP内头因假体周围骨折而分离的报告。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11c8/6123176/6f92271fa1ce/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11c8/6123176/924940db0f13/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11c8/6123176/a5190318dee7/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11c8/6123176/c7580b3c5053/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11c8/6123176/477d808f0ece/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11c8/6123176/6f92271fa1ce/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11c8/6123176/924940db0f13/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11c8/6123176/a5190318dee7/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11c8/6123176/c7580b3c5053/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11c8/6123176/477d808f0ece/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/11c8/6123176/6f92271fa1ce/gr5.jpg

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本文引用的文献

1
Disassembly of a modular femoral component after femoral head prosthetic replacement.股骨假体置换后模块化股骨部件的拆卸。
J Arthroplasty. 2010 Jun;25(4):659.e17-9. doi: 10.1016/j.arth.2009.03.001. Epub 2009 Apr 9.
2
Bateman hemiarthroplasty component disassembly. A report of three cases of high-density polyethylene failure.
Clin Orthop Relat Res. 1987 Nov(224):147-9.
3
Disassembly of a modular femoral prosthesis after dislocation of the femoral component. A case report.
J Bone Joint Surg Am. 1990 Apr;72(4):624-5.
4
Disassembly of a modular femoral component during closed reduction of the dislocated femoral component. A case report.
J Bone Joint Surg Am. 1990 Apr;72(4):619-20.