|Advantages of Hip Resurfacing include (a) Femoral head is preserved, (b) Femoral canal is preserved and not associated with femoral bone loss with future revision. (c) The risk of microfracture of femur with uncemented stem implantation is eliminated. (d) The larger size of the implant "ball" reduces the risk of dislocation significantly. (e) Following resurfacing, patients are more likely to recover a natural gait than patients following a total hip replacement. (f) Stress is transferred in a natural way along the femoral canal and through the head and neck of the femur. (f) The use of metal rather than plastic reduces osteolysis and associated early loosening risk. The use of metal has low wear rate with expected long implant lifetime.
There are special requirements for hip resurfacing. These include the need for solid bone in the femoral head to hold the resurfacing component and healthy kidneys to process any blood-borne metal ions from debris products.
The risks of Hip Resurfacing include (a) the risk of the femoral neck breaking; (b) potentially longer surgical time, and (c) lack of a track record. |
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Quesada MJ, Marker DR, Mont MA. Metal-on-metal hip resurfacing: advantages and disadvantages. J Arthroplasty. 2008 Oct;23(7 Suppl):69-73.
Shimmin A, Beaulé PE, Campbell P. Metal-on-metal hip resurfacing arthroplasty. J Bone Joint Surg Am. 2008 Mar;90(3):637-54.|