Total knee replacements can be done by either preserving or substituting for the posterior cruciate ligament. In the United States, approximately 60% of knee replacements are done using posterior cruciate substituting implants and approximately 40% utilize a posterior cruciate retaining implant. Both have equal track records and the differences are primarily a surgeon's preference.

With regard to tibial components, there are options between fixed bearing tibial components and mobile bearing or rotating platform implants. Both types of implants have similar success rates in the elderly after 15-20 year follow-ups. Both types of knee replacement procedures allow rotation of the knee, which is a normal component of knee range of motion.

There are several laboratory and theoretical advantages to the use of mobile bearing inserts in younger individuals who anticipate a functional use greater than 20-plus years. Longer follow-up meetings will determine if the theoretical advantages become reality.

Through the use of pre- and post-operative education, standard treatment protocols, pain management methods, and nursing care, the Joint Center at Valley Medical Center provides the greater Seattle area with a patient/family focused joint replacement experience. Valley Orthopedic Associates locations in Covington and Renton, serve the greater Pacific Northwest.

For more information about replacements, please visit our knee replacement page.