- 期刊
- OpenAccess
Late shedding of uncemented cup-Retrieval analysis and postulate the mechanism of failure
摘要
Uncemented modular acetabulum components demonstrate a lower rate of radiographic loosening. However, most of late failure was caused by the osteolysis, inducing bone destruction and loss of fixation. Loosening of the well-fixed cup caused by late shedding of the ingrowth surface of uncemented cup is a rare complication. We report of three cases, and through retrieval analysis of the cup we postulate the possible mechanism of late shedding of well-fixed cup. We found that improper position of the cup and eccentric polyethylene (PE) wear may cause impingement of the cup by neck and increase tensile and shear forces which may cause late shedding of good bone-ingrowth cup. Early revision of the eccentric wear PE is indicated for prevention of this complication.
延伸閱讀
- 饒俊龍（2010）。The Investigation and Evaluation on Mechanism Optimization of Chip Pickup Device〔碩士論文，國立交通大學〕。華藝線上圖書館。https://doi.org/10.6842/NCTU.2010.00207
- 李協謙（2008）。Numerical Analysis on the Improvement of Lateral Resistance of the Pile Group〔碩士論文，國立中央大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0031-0207200917354677
- 邱皓政（2007）。Quantitative Research on the Fault Line: The Development of Statistical Methodology。αβγ量化研究學刊，1()，1-53。https://www.airitilibrary.com/Article/Detail?DocID=P20110516001-200712-201105160021-201105160021-1-53
- LI, Y. Z. (2016). Implementation and Evaluation of Hierarchical Shape Analysis [master's thesis, National Chung Cheng University]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0033-2110201614064640
- 林雨軒（2008）。A Study of Micro Conical Cup Forming and Establishment of Stamping Technology Database〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2008.02845