| Conserve Femoral Surface Replacement
  
Bone Preserving For Young, Active Patients
For younger patients with femoral head osteonecrosis,
a total hip replacement now can mean difficult and numerous
revisions with severe bone loss later. CONSERVE® Femoral
Surface Replacement offers an alternative to the problem with
minimal bone resection, preserving femoral bone stock for
the future.
The CONSERVE® Hip System is designed
to restore normal joint mechanics and stability with minimal
invasion of the femoral canal. Its tapered stem enhances alignment
and stability while the cobalt-chrome construction provides
a proven articulating surface without the debris caused by
polyethylene materials.
The CONSERVE® Hip System’s precision
instrumentation and one-millimeter sizing ensures consistent,
reproducible results.
Facts About Osteonecrosis
- Osteonecrosis is estimated to account for
over 10% of the more than 500,000 total hip arthorplasties
performed each year in the US. (1)
- Avascular necrosis has been estimated to develop in 10,000
to 20,000 new patients a year in the United States. (2)
- Core decompression as a treatment for AVN has resulted in
a pooled clinical success rate of 47% for Ficat Stage III.
(3)
- Use of a vascularized fibular graft for the treatment of
Ficat Stage III or IV osteonecrosis of the femoral head resulted
in a success rate of 67% after five years. (4)
- Resurfacing of only the femoral head for Ficat Stage III
or IV resulted in a success rate of 82% at more than six years.
(5)
- The revision rate for total hip arthroplasty as indicated
for osteonecrosis in patients under age 50 is significantly
higher (50%) than THA as indicated for osteoarthritis (19%).
(6)
For more information on the Conserve Family
of Products (Conserve; Conserve Plus or Conserve Total) such
as brochures, articles, video etc., please contact
Ortotech directly or visit the official homepage
http://www.wmt.com/conservefamily
 
References:
Mankin, H.J. “Nontraumatic Necrosis of Bone (Osteonecrosis),
“New England Journal of Medicine. 1992, Vol. 326, p.
1473-1479
Mont, Michael A. and Hungerford, David
S., “Mon-Traumatic Avascular Necrosis of the Femoral
Head,” Journal of Bone and Joint Surgery. March 1995,
p. 459-474
Mont, Michael A.; Carbone John J.; Fairbank,
Adrian C., “Core Decompression Versus Nonoperative Management
for Osteonecrosis of the Hip, “Clinical Orthopaedics
and Related Research. March 1996, p. 169-178
Urbaniak J.R., Coogan P.G.; Gunneson E.B.;
Nunley J.A., Treatment of Osteonecrosis of the Femoral Head
with Free Vascularized Fibular Grafting,”Journal of
Bone and Joint Surgery. May 1995, p. 681-694
Nelson, Carl; Walz, Brad; Gruenwald, J.
Michael, “Resurfacing of Only the Femoral Head for Osteonecrosis,
“Journal of Arthroplasty. October 1997, p. 736-740
Ortiguera, Cedric J.; Pulliam, Ian T.;
Cabanela, Miguel E., “Total Hip Arthroplasty for Osteonecrosis,
“Journal of Arthroplasty.
January 1999
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