Effect of CT slice thickness on accuracy of implant positioning in navigated total hip arthroplasty

被引：9
|
作者：
Hirasawa, N. [1 ,2 ]
Matsubara, M.
Ishii, K.
Hagio, S.
Okuda, N.
Sekiya, I. [2 ]
Muneta, T. [2 ]
机构：
[1] Nissan Tamagawa Gen Hosp, Ctr Adult Hip Reconstruct, Setagaya Ku, Tokyo, Japan
[2] Tokyo Med & Dent Univ, Grad Sch Med, Sect Orthoped Surg, Tokyo, Japan
来源：
COMPUTER AIDED SURGERY | 2010年 / 15卷 / 4-6期
关键词：
CT-based navigation; total hip arthroplasty; radiation exposure; REPLACEMENT;
D O I：
10.3109/10929088.2010.525025
中图分类号：
R61 [外科手术学];
学科分类号：
摘要：
CT-based navigation appears to be very accurate with regard to cup anteversion and leg length, but inaccurate with regard to stem anteversion. As for the varus/valgus angle of the stem, the navigated approach seems to be very accurate in terms of the numerical value, but this does not satisfy us: Stem anteversion is still inaccurate with this system, while cup inclination is sufficiently accurate with both navigation and manual methods. Use of 1-mm CT slices results in twice the radiation exposure associated with 3-mm CT slices, but there is little difference with respect to accuracy. It is therefore recommended to use a CT-based navigation system with 3-mm CT slices for accurate and safe total hip arthroplasty.
引用
收藏
页码：83 / 89
页数：7
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