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Ceramic Liner Fracture Caused by an Impingement between the Stem Shoulder and the Ceramic Liner

Hip & Pelvis 2020년 32권 3호 p.156 ~ 160
이선형, 전승원, 유정준, 김희중,
소속 상세정보
이선형 ( Lee Sun-Hyung ) - Seoul National University Hospital Department of Orthopedic Surgery
전승원 ( Jeon Seung-Won ) - Seoul National University Hospital Department of Orthopedic Surgery
유정준 ( Yoo Jeong-Joon ) - Seoul National University Hospital Department of Orthopedic Surgery
김희중 ( Kim Hee-Joong ) - Seoul National University Hospital Department of Orthopedic Surgery

Abstract


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.

키워드

Hip; Arthroplasty; Ceramics

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