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KMID : 1028220200320030156
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Hip & Pelvis
2020 Volume.32 No. 3 p.156 ~ p.160
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Ceramic Liner Fracture Caused by an Impingement between the Stem Shoulder and the Ceramic Liner
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Lee Sun-Hyung
Jeon Seung-Won
Yoo Jeong-Joon
Kim Hee-Joong
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Abstract
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Mechanisms of ceramic liner fractures have not yet been fully elucidated. Impingement between a stem and ceramic liner is a proposed cause of ceramic liner fractures. We experienced a case of ceramic liner fracture caused by direct impingement between the stem shoulder and the ceramic liner. This type of impingement, unlike impingements with a stem neck, has not been previously reported. While we assume that certain characteristics of the stem contributed to the impingement, we report this case to note that caution may be needed when using certain stem designs.
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KEYWORD
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Hip, Arthroplasty, Ceramics
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