کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4060916 | 1604028 | 2012 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effects of Kneeling on Tibiofemoral Contact Pressure and Area in Posterior Cruciate-Retaining and Posterior Cruciate-Sacrificing Total Knee Arthroplasty Effects of Kneeling on Tibiofemoral Contact Pressure and Area in Posterior Cruciate-Retaining and Posterior Cruciate-Sacrificing Total Knee Arthroplasty](/preview/png/4060916.png)
The objective of this study was to measure the effect of kneeling on tibiofemoral contact following cruciate-retaining and posterior-stabilized total knee arthroplasty. Five cadaveric knees were tested on a custom testing system that allowed physiologic muscle loading. Three forces were used to simulate nonkneeling, double-stance kneeling, and single-stance kneeling at flexion angles of 90°, 105°, 120°, and 135°. Tibiofemoral contact areas and pressures were measured using the Tekscan (South Boston, MA) system. Kneeling increased contact areas and pressures in both designs with variable significance (P < .05). Moving from double- to single-stance kneeling increased pressures in the cruciate-retaining group but decreased pressures in the posterior-stabilized group (P < .05). Chronic, repetitive kneeling after total knee arthroplasty may increase polyethylene wear due to increased contact areas and pressures.
Journal: The Journal of Arthroplasty - Volume 27, Issue 4, April 2012, Pages 620–624