Reliability Analysis of 16-MDCT in Preoperative Evaluation of Total Knee Arthroplasty and Comparison With Intraoperative Measurements
In Sook Lee1,2,3,
Jung-Ah Choi1,2,
Tae Kyun Kim4,
Ilkyu Han4,
Joon Woo Lee1,2 and
Heung Sik Kang1,2
1 Department of Radiology, Seoul National University Bundang Hospital, 300
Gumi-dong, Bundang-gu, Seongnam, Gyeongi-do 463-707, Korea.
2 Department of Radiology and Institute of Radiation Medicine, Seoul National
University College of Medicine, Seoul, Korea.
4 Department of Orthopedic Surgery, Seoul National University Bundang Hospital,
Seoul, Korea.

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Fig. 1A Methods of femoral sizing on a CT workstation. All measurements were
done using multiplanar reconstruction and 3D volume-rendered images. Dot
cursors for measuring on 3D volume-rendered image were placed in identical
portions on corresponding axial, coronal, and sagittal images.
Transepicondylar distance was measured as distance between most medial and
most lateral prominences of epicondyles.
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Fig. 1B Methods of femoral sizing on a CT workstation. All measurements were
done using multiplanar reconstruction and 3D volume-rendered images. Dot
cursors for measuring on 3D volume-rendered image were placed in identical
portions on corresponding axial, coronal, and sagittal images. Maximum
anteroposterior dimension of medial femoral condyle was measured at most
anterior and most posterior projections.
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Fig. 1C Methods of femoral sizing on a CT workstation. All measurements were
done using multiplanar reconstruction and 3D volume-rendered images. Dot
cursors for measuring on 3D volume-rendered image were placed in identical
portions on corresponding axial, coronal, and sagittal images. Maximum
anteroposterior dimension of lateral femoral condyle was measured at most
anterior and most posterior projections.
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Fig. 1D Methods of femoral sizing on a CT workstation. All measurements were
done using multiplanar reconstruction and 3D volume-rendered images. Dot
cursors for measuring on 3D volume-rendered image were placed in identical
portions on corresponding axial, coronal, and sagittal images. Trochlear width
was determined as distance between most anterior projections of medial and
lateral condyles.
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Copyright © 2006 by the American Roentgen Ray Society.