Introduction: A fracture of the ceramic head in bipolar hemiarthroplasty using an inner polyliner has not been reported yet, and there seems to be no report of simultaneous breakage of the fourth-generation BIOLOX Delta ceramic head and liner in total hip arthroplasty.
Method: A 44-year-old male patient underwent bipolar hemiarthroplasty using a third-generation BIOLOX Forte ceramic head 3 years and 9 months earlier for osteonecrosis of femoral head (ONFH) and visited our hospital due to a ceramic head fracture. Conversion total hip arthroplasty was performed. A 64-year-old female patient underwent total hip arthroplasty using a fourth-generation BIOLOX Delta ceramic head and liner articulation for osteoarthritis of the hip. The ceramic head and liner were fractured during the third dislocation. Ceramic head and liner exchange revision surgery was performed.
Conclusion: When using ceramic bearings, fractures or delamination following trauma can occur, confirming the need to carefully evaluate the condition of the ceramic components in symptomatic patients.
Keywords: Arthroplasty; Ceramics; Hemiarthroplasty; Hip; Replacement.
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