We have received a number of inquiries in our office regarding the merits of
cemented versus non-cemented femoral head components in hip resurfacing
Bear in mind that my experience with hip resurfacing to date has essentially
been associated with the Smith and Nephew Birmingham hip resurfacing system as
designed by Drs. McMinn and Treacy.
The system utilizes a line to line fit on the femoral head component with a very
thin thickness of cement. A small amount of liquid cement is poured into the
hollow inverted femoral head component and then extruded (and cleaned off as
necessary) as it is … Read the rest
Background: Metal-on-metal bearing with cemented femoral component and cementless acetabular fixation is the current standard in surface replacement arthroplasty (RSA) of the hip. Because of concerns about the long-term survivorship of cemented stems in conventional hip arthroplasty, it seems logical to achieve cementless fixation on the femoral side with RSA. Questions/Purposes: The goals of this review were to evaluate clinical and radiological data reported from previously published cementless RSA series. In addition, we intend to review author’s preliminary experience with Conserve Plus cementless devices specifically assessing the clinical outcomes, the complications rate, the survivorship, and the metallic ions levels … Read the rest
WHAT IS THE
BEST BONE FIXATION TYPE? 1/11/2011
A Comparison of cement vs. bone ingrowth
Thomas P. Gross, M.D.
At 2 years
of follow-up cemented and uncemented femoral resurfacing is equivalent.
cement failure is the most common late cause of failure in hip resurfacing
(3% @ 8 years).
Wear-related failures with the Corin or Biomet implant systems are rare in
demonstrated that failure of bone ingrowth does not occur in a properly
designed uncemented femoral resurfacing component (provided femoral neck
fracture or osteonecrosis does not occur).
fixation of implants in stemmed total hip replacement
… Read the rest
Thomas P. Gross, M.D. Midlands Orthpaedics p.a. Current status of uncemented femoral components in hip resurfacing Midlands Orthpaedics p.a.
Uncemented femoral components for metal on metal total hip resurfacing have shown excellent results during the initial 3 years that I have been using this new technology. The early results that I have achieved in 0ver 800 cases since March 2007 are equivalent to the early results that I achieved with the same brand cemented femoral component.
Uncemented fixation of implants to bone is a proven technology that has generally surpassed the durability of cemented fixation to bone … Read the rest
Dr. De Smet
Patient Advocate/Technical Contributor, asks "What is your
opinion on cementless devices for resurfacing?"
Maybe they are good, but we do not know yet. Cement is a shock
absorber between prosthesis and bone or between prosthesis/
bone+cement/ bone, so maybe a good thing, certainly taking in
account that Chrome Cobalt has not the same elasticity as bone
and is quite stiff!
Read More Doctors Opinions … Read the rest