Dr. Gross summarizes his study as follows:
Cleary my preference is an uncemented femoral component and most
of my patients follow my recommendation. However, I still cement some femoral
heads at the requestof patients who are not comfortable with the porous femoral
♦ Fully porous femoral resurfacing components are now available
in the US from Biomet.
♦ These components allow us to eliminate cement completely from
the resurfacing procedure.
♦ No other companies are yet selling these in the US.
♦ Corin has had a partially porous femoral component available
in Europe for several years.
♦ Virtually all clinical data on hip surface replacement to date
is based on an uncemented acetabular component and a cemented femoral component
♦ Corin data from England with a partially porous femoral
components is equivalent to data with cemented femoral components at 1-3 years
in over 600 patients.
♦ My limited 7 year data with a Corin HA nonporous uncemented
femoral component is promising.
♦ It is not clear, if uncemented technology on the femur will be
better or worse then cemented femoral components at this point.
♦ I perform either the traditional hybrid or the latest fully
porous resurfacing as desired by the patient. My preference is the uncemented
♦ If uncemented hip resurfacing proves to be equal to hybrid
fixation at 2 years, then most surgeons will agree with me that the long term
outlook almost certainly will be better for the uncemented method. The entire
resurfacing market will then switch rapidly to uncemented fixation.