Hip Pelvis.
2020 Sep;32(3):156-160. 10.5371/hp.2020.32.3.156.
Ceramic Liner Fracture Caused by an Impingement between the Stem Shoulder and the Ceramic Liner
- Affiliations
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- 1Department of Orthopaedic Surgery, Seoul National University Hospital, Seoul, Korea
- KMID: 2511767
- DOI: http://doi.org/10.5371/hp.2020.32.3.156
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.
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