Does taper angle clearance influence fretting and corrosion damage at the head-stem interface? A matched cohort retrieval study

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• 作者：Sevi B. Kocagö ; z ; BS^a ; ^e ; Richard J. Underwood ; PhD^a ; ^b ; Shiril Sivan ; BE^c ; ^d ; Jeremy L. Gilbert ; PhD^c ; ^d ; Daniel W. MacDonald ; MS^a ; ^e ; Judd S. Day ; PhD^a ; ^b ; Steven M. Kurtz ; PhD^a ; ^b ; ^e ; ^{smk38@drexel.edu" class="auth_mail}
• 关键词：taper angle clearance ; fretting ; corrosion ; femoral head and stem ; material loss ; wear
• 刊名：Seminars in Arthroplasty
• 出版年：December, 2013
• 年：2013
• 卷：24
• 期：4
• 页码：246-254
• 全文大小：3037 K

文摘

Previous studies have speculated that modular taper design may have an effect on corrosion and material loss at the taper surfaces. We present a novel method to measure taper angle for retrieved femoral head taper and stem trunnions using a roundness machine (Talyrond 585, Taylor Hobson, UK). We also investigated the relationship between taper angle clearance and visual fretting-corrosion score at the taper-trunnion junction using a matched cohort study of 50 ceramic and 50 metal head-stem pairs. In this study, no correlation was observed between the taper angle clearance and the visual fretting-corrosion scores in either the ceramic or the metal cohorts.