Effect of trunnion roughness and length on the modular taper junction strength under typical intraoperative assembly forces

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• 作者：S.Y. Jauch-Matt ; ^{sabrina.jauch@tuhh.de} ; ^{sabrina_jauch@yahoo.de} ; A.W. Miles ^{a.w.miles@bath.ac.uk} ; H.S. Gill ^{r.gill@bath.ac.uk}
• 关键词：Modular hip prosthesis ; Stem-head taper connection ; Fretting ; Taper strength ; Pull-off force
• 刊名：Medical Engineering & Physics
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：39
• 期：Complete
• 页码：94-101
• 全文大小：1023 K
• 卷排序：39

文摘

A stable fixation of modular tapers is critical to minimize interface micromotions. Trunnion-head pairs were assembled and their taper strengths assessed. Pull-off forces increased with rising peak assembly force. Smooth tapers showed higher strengths than grooved ones following moderate impactions. A higher taper strength may reduce the risk of fretting-induced complications.