KMID : 1207720220140020191
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Clinics in Orthopedic Surgery 2022 Volume.14 No. 2 p.191 ~ p.195
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Surgeons¡¯ Awareness and Impaction Technique of a Ceramic Liner into a Metal Shell
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Kim Hong-Seok
Park Jung-Wee Lee Young-Kyun Porporati Alessandro Alan Ha Yong-Chan Koo Kyung-Hoi
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Abstract
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Background: In ceramic-on-ceramic total hip arthroplasty, firm locking is necessary between a ceramic liner and an acetabular metal shell to prevent dissociation of the liner from the metal shell. We evaluated surgeons¡¯ awareness of the technique for inserting the ceramic liner and measured the impaction force applied by surgeons during the insertion of the ceramic liner.
Methods: To evaluate the awareness, we conducted a survey using a questionnaire including techniques for ceramic liner insertion. The impaction force was measured using an impaction simulator in 224 surgeons.
Results: Most surgeons answered that they cleaned and dried up the inner surface of the metal shell before inserting a ceramic liner (96.4% and 86.2%, respectively), and 74.6% checked the correct seating of the ceramic liner. However, only 23.2% correctly answered that a minimum of 2kN (a light strike) was necessary to obtain a sufficient fit between the metal shell and the ceramic liner. The impaction force was weaker than 2 kN in 9.4% of the surgeons.
Conclusions: Education about the adequate impaction force to obtain a firm fit of the ceramic liner is necessary for surgeons who perform total hip arthroplasty using ceramic-on-ceramic bearings.
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KEYWORD
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Impaction technique, Ceramic liner, Total hip arthroplasty, Awareness
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