The ASR has been removed from the market.…
I have now done about 185 resurfacings for AVN cases over a 5 year period with many patients crossing the 4 yrs mark. It is interesting to note there has not been a collapse or fracture neck of femur even in a single patient.
It is wrong to think that the AVN continues forever in the femoral head. AVN is a one time event in which a strikingly similar sector of necrosis occurs in most femoral heads ( anteo supero lateral part) due to blockage of presumably the same vessel in all patients. This sets off a series of changes which are is marked by sectoral collapse. This is primary collapse of AVN and most patients are likely to develop it. Any kind of core decompression / bone grafting is a surgical attempt at preventing /postponing this event. These joint salvage procedures ( according to literature) achieves their
X-ray showing a 26 year old man with a diagnosis of ankylosing spondylitis and secondary degeneration of the hips. Due to loss of bone stock while waiting for surgery, the right side required a total hip
replacement. On the left, the patient underwent a hip resurfacing.
Thank You to whoever took this x-ray. There was no author indicated.
BHR vs THR X-ray from
Mr. Mark Bloomfield’s Website
Nature leads, we follow. The unique
Significant features of the ESKA-Bionik®-System:
Based upon modern materials available
-The femoral head is almost conserved
-Stress-shielding related to load transfer
-Natural joint reconstruction minimises the
System extensions are available which allow
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