کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4062011 | 1604062 | 2008 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: In Vivo Kinematic Analysis of a High-Flexion Posterior Stabilized Fixed-Bearing Knee Prosthesis in Deep Knee-Bending Motion In Vivo Kinematic Analysis of a High-Flexion Posterior Stabilized Fixed-Bearing Knee Prosthesis in Deep Knee-Bending Motion](/preview/png/4062011.png)
The objective of this study was to evaluate in vivo kinematics of a high-flexion, posterior-stabilized fixed-bearing, total knee arthroplasty in weight-bearing deep knee-bending motion. A total of 20 knees implanted with the Scorpio Non-Restrictive Geometry knee system in 17 patients were assessed in this study. The Scorpio Non-Restrictive Geometry is a recent implant design with modifications made to accommodate a higher flexion range of motion and greater axial rotation, particularly during more functionally demanding activities. Patients were examined during a deep knee-bending motion using fluoroscopy, and femorotibial motion was determined using a 2-dimensional to 3-dimensional registration technique. The average flexion angle was 126.5° (110°-149°). The femoral component demonstrated a mean of 13.5° (5.2°-21°) external rotation. The external rotation increased up to maximum flexion. The pivot pattern was a medial pivot pattern similar to that reported in normal knee kinematics.
Journal: The Journal of Arthroplasty - Volume 23, Issue 6, September 2008, Pages 879–885