Assessment of Accuracy of Marker Ball Placement in Pre-operative Templating for Total Hip Arthroplasty

被引：45

作者：

Sinclair, Victoria F. ^{[1
]}

Wilson, James ^{[1
]}

Jain, Neil P. M. ^{[2
]}

Knowles, David ^{[1
]}

机构：

[1] Royal Lancaster Infirm, Lancaster, England

[2] Univ S Manchester Hosp, Manchester M23 9LT, Lancs, England

来源：

JOURNAL OF ARTHROPLASTY | 2014年 / 29卷 / 08期

关键词：

templating; marker ball; position; total hip arthroplasty; REPLACEMENT;

D O I：

10.1016/j.arth.2014.03.013

中图分类号：

R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];

学科分类号：

摘要：

We report the accuracy of positioning of the calibration ball in the process of pre-operative templating for total hip arthroplasty (THA). The ball should be placed in the coronal plane of the hip to provide suitable accuracy. We reviewed 112 post-operative THA radiographs where a calibration ball had been placed. We templated the femoral head size of the implant after calibrating the templating system from the ball. The calibrated femoral head diameter was compared to the known prosthetic head size. A percentage error was calculated. Overall, incorrect placement of the calibration ball resulted in a mean percentage error in templating of 6.8% (median 5.7%; range 0-26%). Such error carries implications with the templating process and may result in incorrect component sizes, leg lengths and offset. (C) 2014 Elsevier Inc. All rights reserved.

引用

页码：1658 / 1660

页数：3

共 10 条

[1]

Efe T, 2011, ACTA ORTHOP BELG, V77, P616

[2] A comparison of four systems for calibration when templating for total hip replacement with digital radiography [J].