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KMID : 1028220210330010040
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Hip & Pelvis
2021 Volume.33 No. 1 p.40 ~ p.44
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Gross Trunnion Failure in the Bipolar Hemiarthroplasty; Raising Concern about Short Trunnion: A Case Report
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Kim Kang-Baek
Lee Jun-Pyo
Yoo Jeong-Joon
Kim Hee-Joong
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Abstract
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There have been some reports of gross trunnion failure (GTF) in total hip arthroplasty. Here, we report a case of GTF 19 years after bipolar hemiarthroplasty using a 28-mm head with a 14/16 taper bore. Compared to other GTF reports, the current case had some unusual aspects: bipolar hemiarthroplasty, 28-mm head, relatively late-onset, and no apparent findings of metallosis though a severe one was evident. A Computed tomography scout view provided valuable information in evaluating polyethylene, metal head, and neck inside the bipolar cup. The current report suggests a need for concerned regarding short trunnion length which may be associated with GTF.
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KEYWORD
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Hip, Arthroplasty, Prosthesis failure
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Listed journal information
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