Dr. A. K. Venkatachalam is a consultant Orthopaedic surgeon
in Chennai. He offers Joint replacements. Hip
resurfacing, Proxima hip replacements, Primary &
revision total hip replacements are commonly performed
procedures. Getting a hip resurfacing or replacement in
India is easy. Visit
The Proxima Hip Replacement
The Proxima hip is an uncemented hip. It has
metal on metal bearings. It is implanted through a minimally
invasive approach. The disadvantages of a total hip like thigh pain,
risk of dislocation, wear are eliminated with this hip. It is suited
for young and active patients with hip arthritis in India.
Indications for the Proxima hip
Young patients with hip arthritis with moderate to
severe bone involvement.
Advantages of the Proxima hip
Bone preserving surgery
Minimally invasive surgery
Restoration of normal function
No incidence of thigh pain, a common complaint
with traditional hip replacements
No incidence of dislocation
Long lasting prosthesis as it is made of metal
Proxima hip versus Hip resurfacing
Both have their place. When the bony involvement
is minimal to moderate and the anatomy of the head of the femur is
intact, then a Hip resurfacing can be done. When the anatomy is
altered, resurfacing of hip is not ideal. Limb length cannot be
restored with a hip resurfacing procedure, but can be restored with
short stem implants like the Proxima and METHA hip.
Cost of Proxima hip replacement
A Proxima hip replacement with a week's stay in a
private room will cost about 7500- 8000 US dollars
New hip prosthesis offers lease of hope to
replacements in Chennai got a boost with the introduction of the "
Proxima hip" by Dr. A. K. Venkatachalam consultant Orthopedic surgeon
of www.hipsurgery.inand www.kneeindia.com
Nov 30 2006 - A 33 year old South Indian house wife suffering
from a condition called "Osteonecrosis" or avascular necrosis of
both hips underwent a novel form of bone preserving hip replacements
at Bharathi Rajaa Specialty Hospitals this week.
Dr.A.K.Venkatachalam, Consultant Orthopaedic Surgeon, performed the
surgery. The prosthesis implanted was the Proxima Hip Replacement,
which is a very small prosthesis.
The technology has been introduced recently in India and
Dr. Venkatachalam is the First Indian Surgeon to perform the
operation in South India, as other surgeries had been performed by
visiting foreign surgeons. "The size of the implant is smaller and
provides maximum direct contact with bone, besides increasing the
longevity of the surgical procedure and eliminating thigh pain,"
says the Doctor.
"It preserves more bone than traditional hip implant surgeries, but
lesser than what hip resurfacing does."
Dr. Francesco Saverio Santori an Italian Orthopaedic surgeon in
association with a British Surgeon has designed this prosthesis and
it has a ten year follow up.
Talking about the operation Dr.Venkatachalam says that it is novel
as the bone in the neck of the femur (Upper end of the thigh bone)
is preserved. This type of hip replacement is a solution to selected
group of patients who are not suitable for Surface hip replacement
and in whom a total hip replacement is an option. This replacement
surgery preserves bone stock, as the prosthesis is not implanted
deep within the thighbone. It is a "stemless" stem. The bearing
surfaces are made up of metal and this confirms enormous longevity
to the prosthesis. It is also very stable as the diameter of the
prosthesis is large and replicates the normal size of bone.
At present, minimally invasive surgery is the main trend of
orthopaedic surgery and involves almost all its fields, joint
replacement included. A total hip arthroplasty should be considered
minimally invasive not just because it can be done through a small
incision but it should preserve bone and only if bone resection is
limited to pathologic tissues (conservative replacement) and the
procedure is performed without major sacrifice of soft tissues. This
last statement suggests that the term "mini-incisions" be
substituted with "mini-approaches", meaning surgical approaches that
respect the skin, but also fascia, tendons and muscles. Bone
preservation may be obtained through proximal load, neck-retaining
and resurfacing implants. Evaluating bone sacrifice both on the
femoral side and on the acetabular side, neck-retaining
arthroplasties seem to warrant the most balanced maintenance of bone
tissue. Neck-preserving implants through a lateral or posterior
mini-approach seem to be the most consolidated solution in minimally
invasive total hip replacement.
It could be used in selective cases of hip arthritis, such as for
people with good bone stock for whom resurfacing would not be
suitable and a total hip replacement would be too radical.
Recently the same surgeon at this Hospital has performed a number of
minimally invasive Knee Replacements with the high flex knee for
patients including UK and Middle East.