期刊
JOURNAL OF ARTHROPLASTY
卷 26, 期 1, 页码 88-97出版社
CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS
DOI: 10.1016/j.arth.2009.12.004
关键词
arthritis; kinematics; total joint arthroplasty; femoroacetabular impingement; hip arthrokinematics
类别
资金
- OREF/AAHKS/Zimmer Resident Clinician Scientist
This study investigated the efficacy of a combined high-speed, biplane radiography and model-based tracking technique to study hip joint kinematics and arthrokinematics. Comparing model-based tracking to the gold standard of radiostereometric analysis using implanted metal beads, joint translation was measured with a bias of 0.2 mm and a precision of 0.3 mm, whereas joint rotation was measured with a bias of 0.2 degrees and a precision of 0.8 degrees. A novel measure of hip arthrokinematics characterizing the region of closest contact in the anterosuperior acetabulum was measured with a bias of 0.9% and a precision of 2.5%. Model-based tracking of the hip thus provides the opportunity to noninvasively study hip pathologic conditions such as osteoarthritis and femoroacetabular impingement with great accuracy.
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