MRI of Polyethylene Tibial Inserts in Total Knee Arthroplasty: Normal and Abnormal Appearances

被引：11

作者：

Li, Angela E. ^{[1
,2
]}

Sneag, Darryl B. ^{[1
,2
]}

Miller, Theodore T. ^{[1
,2
]}

Lipman, Joseph D. ^{[3
]}

Padgett, Douglas E. ^{[2
,4
]}

Potter, Hollis G. ^{[1
,2
]}

机构：

[1] Hosp Special Surg, Dept Radiol & Imaging, 535 E 70th St, New York, NY 10021 USA

[2] Weill Cornell Med Coll, New York, NY USA

[3] Hosp Special Surg, Dept Biomech, 535 E 70th St, New York, NY 10021 USA

[4] Hosp Special Surg, Adult Reconstruct & Joint Replacement Div, 535 E 70th St, New York, NY 10021 USA

来源：

AMERICAN JOURNAL OF ROENTGENOLOGY | 2016年 / 206卷 / 06期

关键词：

fracture; implant; MRI; polyethylene tibial insert; polyethylene wear; total knee arthroplasty; MICROCOMPUTED TOMOGRAPHY; WEAR; DISSOCIATION; OSTEOLYSIS; FAILURE;

D O I：

10.2214/AJR.15.15107

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

OBJECTIVE. The purpose of this study was to describe the normal and abnormal MRI appearances of polyethylene tibial inserts. Subjects who underwent MRI before revision total knee arthroplasty were identified. The polyethylene tibial insert's shape was categorized on MRI, and the presence of abnormalities was noted. CONCLUSION. The shape of the polyethylene tibial insert varied with the design. Polyethylene tibial insert abnormalities seen on MRI included displacement and fracture. MRI distinguishes various designs of polyethylene tibial inserts and can show associated abnormalities.

引用

页码：1264 / 1271

页数：8

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