Metal ion release following hip replacement not strongly related to patient activity medical study
Metal ion release following hip replacement not strongly related to patient activity Read Complete Article by Clicking Here The amount of patient activity following metal-on-metal hip resurfacing arthroplasty seems to show little correlation to metal ion release, according to study presented here. Amir Kamali, PhD, presented his team’s findings at the 56th Annual Meeting of the Orthopedic Research Society.Kamali reported that his group looked at 25 consecutive male patients who underwent a unilateral, 50-mm diameter metal-on-metal hip resurfacing……”I should mention here that at 1, 2, and 4 years, the average metal ion levels were similar between these implants, meaning they had gone well into their steady state,” Kamali said……He added the results may be due to the effect of individuals’ stop-start motion, walking speed and the effect of varying kinetics and kinematics on the lubrication conditions – all of which contribute to different levels of metal ion release.Reference: Daniel JT, Kamali A, Ziace H, et al. The effect of patient activity on metal ions levels, in patients with metal-on-metal hip resurfacing. Paper 323. Presented at the 56th Annual Meeting of the Orthopaedic Research Society. March 6-9, 2010. New Orleans.