Dr. Kurtz had an article online that had concerns about the head neck rations of hip resurfacing compared to total hip replacement. We wanted to provide potential hip resurfacing patients with opinions of other top resurfacing surgeons to explain their views.
Very nice to hear from you. I’m sorry for the delay in
I have read over the material at this website many
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
DynaMoM hip resurfacing device (Tornier) by J Girard, MD, MsC.
DynaMoM hip resurfacing device was introduced in France in 2008 and
was first implanted at Lille Universitary Hospital by J. Girard, MD.
Rationale for design
The rational for the design was made according to clearance, the
rugosity, the head diameter, the sphericity and the alloy process.
DynaMoM design-included the extent of cement fixation, optimization
of implant position, minimization of stress-shielding, geometry
options, metallurgy, examination of in vivo cup deformation…
Jump factor is defined by the distance to cross
before head dislocation. In hip resurfacing, mainly design shows a
66m difference between cup and head diameter.
So, if you choose a hemispherical cup design
truncated with 3mm, jump factor is 16mm with a 38mm head diameter
and 27mm with a 60mm head diameter. With a conventional cup design
(like a polyethylene insert) with a 22.22mm head diameter, jump
New Data Reinforces the Proven Safety and
80-percent of US surgeons choose the BHR hip
MEMPHIS, Tenn., May 3 /PRNewswire-FirstCall/ — Recent new data(1)
This week, the Hospital for Special Surgery (HSS) in New York City
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