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30 Hip Dysplasia Surgical intervention


This article is from the Canine Medical Information FAQ, by Cindy Tittle Moore with numerous contributions by others.

30 Hip Dysplasia Surgical intervention

* Triple Pelvic Osteotomy (TPO)
TPO is a surgical procedure to rotate the acetabular portion of
the pelvis so that there is increased coverage of the femoral
head. Increasing coverage promotes improved articulation and, in
the ideal situation, joint degeneration is halted. However, if
degeneration is already present within the hip, cartilage
breakdown is likely to continue, even with improved articulation.
This is why checking your dog at 6-8 months regardless of symptoms
is often recommended. The best candidate for TPO is a young dog
(6-8 mths) with moderate laxity that has no damage to the dorsal
acetabular rim or early evidence of degeneration of radiographs.
Currently, the cost of Triple Pelvic Osteotomy, including
examination, radiographs and hospitalization, is approximately
* Femoral Head Ostectomy (FHO)
Sometimes the head of the femur can be simply removed and the
muscles around the site compensate for the missing joints The dog
is pain free afterwards and learns to walk again, but running and
jumping are not done normally again. Most commonly, smaller dogs
are the best candidates for this surgery. Obese or very large dogs
will still experience some pain, as the muscles cannot totally
* Uncemented hip prosthesis (subcategory of hip replacement surgery)
Dr. David J. DeYoung of NCSU, professor of orthopedic surgery in
the College of Veterinary Medicine, helped develop the prosthesis
based on a human version that is held in place without cement. The
prosthesis features a beaded surface into which bone and fibrous
tissue can grow and secure the components. More than 100 of the
new prostheses have been implanted in dogs over a five-year period
without loosening or infection, two of the main concerns with
cemented total hip replacements,
* BOP shelf arthroplasty
This is a relatively experimental method, whose effectiveness is
debated. Polymer "lattices" are implanted in the affected joint.
The premise is that new bone will gro owver the lattice,
correcting the degeneration and/or deformation of the joint. than
it is experimental)
* Total Hip Replacement (THR)
This traditional surgery involves replacing the femoral head or
ball portion of the joing with a metal prosthesis. The acetabulum
is replaced with a polyethylene socket. The procedure thus removes
the source of pain and inflammation as the bone is no longer in
contact with the degenerated joint.

When the dog's pain cannot be controlled nor alleviated
* Euthanasia


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