James W. Pritchett MD, 901 Boren Ave. #900, Seattle, WA 98104
Cross-linked polyethylene has much less wear than conventional polyethylene and
can used in a more bone conserving thickness of 4 mm. We have used it for hip
resurfacing since 2001.
This study evaluated the effectiveness of a highly cross-linked polyethylene
acetabular component for hip resurfacing in patients under age 50. I posed 5
questions: (1) What are the functional results, (2) What are the complications,
(3) What is the 10-year implant survivorship, (4) What is the femoral head
penetration into the polyethylene, and (5) What is the bone conservation?
Participants and Methods:
There were 160 resurfacing procedures (144 participants) using a 2 piece acetabular shell and a
cementless femoral component (fig. 1). Participants averaged 43 years of age at
the time of surgery (range, 23 – 49.5 years) and 70% were women. Inclusion…