TY - JOUR
T1 - Changes in knee alignment after total knee arthroplasty
AU - Matsuda, Shuichi
AU - Miura, Hiromasa
AU - Nagamine, Ryuji
AU - Urabe, Ken
AU - Harimaya, Katsumi
AU - Matsunobu, Tomoya
AU - Iwamoto, Yukihide
N1 - Funding Information:
Funds were received in part from the Ministry of Education, Science, Sports, and Culture, Japan (Encouragement of Young Scientists, Grant-in-Aid No. 10770715) in support of the research material described in this article. Submitted July 17, 1998; accepted December 21, 1998. Reprint requests: Shuichi Matsuda, MD, Department of Orthopaedic Surgery, Faculty of Medicine, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka City, Fukuoka 812-8582, Japan. Copyright © 1999 by Churchill Livingstone ® 0883-540319911405-0008510.0010
PY - 1999/8
Y1 - 1999/8
N2 - Changes in limb alignment after total knee arthroplasty were evaluated in 20 knees replaced with the Miller Galante knee system. The mean follow-up period was 87.4 months. Seventeen of the 20 knees were in the varus position on the initial postoperative radiographs, but the alignment significantly changed to become even more aligned toward varus during the follow-up period. The thickness of the ultra-high-molecular-weight polyethylene (UHMWPE) also decreased significantly in the medial femorotibial joint. The wear of the UHMWPE possibly changed the alignment, and the postoperative alignment had a positive correlation with the wear rate. The components should be implanted so that the mechanical axis intersects the center of the components to prevent worsening of alignment as well as to minimize any such wear.
AB - Changes in limb alignment after total knee arthroplasty were evaluated in 20 knees replaced with the Miller Galante knee system. The mean follow-up period was 87.4 months. Seventeen of the 20 knees were in the varus position on the initial postoperative radiographs, but the alignment significantly changed to become even more aligned toward varus during the follow-up period. The thickness of the ultra-high-molecular-weight polyethylene (UHMWPE) also decreased significantly in the medial femorotibial joint. The wear of the UHMWPE possibly changed the alignment, and the postoperative alignment had a positive correlation with the wear rate. The components should be implanted so that the mechanical axis intersects the center of the components to prevent worsening of alignment as well as to minimize any such wear.
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U2 - 10.1016/S0883-5403(99)90078-5
DO - 10.1016/S0883-5403(99)90078-5
M3 - Article
C2 - 10475555
AN - SCOPUS:0032794678
SN - 0883-5403
VL - 14
SP - 566
EP - 570
JO - Journal of Arthroplasty
JF - Journal of Arthroplasty
IS - 5
ER -