Quantitative 3-Dimensional Analysis of Preoperative and Postoperative Joint Lines in Total Knee Arthroplasty

Abstract We developed a quantitative 3-dimensional (3D) technique for the assessment of changes in the tibial joint line as well as distal and posterior femoral joint lines using a 3D image-matching procedure. In this study, we performed 3D joint line assessment of 20 knees that had undergone total...

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Bibliographic Details
Published in:The Journal of arthroplasty 2007-06, Vol.22 (4), p.560-568
Main Authors: Sato, Takashi, MD, Koga, Yoshio, MD, Sobue, Ten, MD, Omori, Go, MD, Tanabe, Yuji, PhD, Sakamoto, Makoto, PhD
Format: Article
Language:English
Subjects:
alignment
biomechanics
joint line
Orthopedics
total knee arthroplasty
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Summary:Abstract We developed a quantitative 3-dimensional (3D) technique for the assessment of changes in the tibial joint line as well as distal and posterior femoral joint lines using a 3D image-matching procedure. In this study, we performed 3D joint line assessment of 20 knees that had undergone total knee arthroplasty. Most of the knees exhibited proximal change in the tibial joint line, distal change in the distal femoral joint line, and anterior change in the posterior femoral joint line. There were clear differences in changes in the joint lines between the medial and lateral condyles. The findings indicate that changes in the joint line should be individually assessed for each condyle and that the assessment should include not only the tibial condyle but also the distal and posterior femoral condyles.
ISSN:0883-5403
1532-8406
DOI:10.1016/j.arth.2006.06.020