Page 42 - Chow Life - Summer 2016 Issue
P. 42

the study, as it's unknown if it could  lesion bed in the affected joint. The  characteristics of the pelvic limbs
cause problems in dogs with tumors      graft integrates and restore function  that are thought to be contributing
and metastasis. CHF is sponsor-         but creates a problem with donor       factors; by looking at standing
ing new clinical study on bilateral     site morbidity. Tissue engineering     angles, range of motion, muscle
supraspinatus injury and they need      creates new hope and a promising       mass, and development of the
recruited cases. Dr. Brian Saun-        treatment for dogs suffering from      hip-stifle joint relationship. An
ders also gave a presentation on        OCD, OA or other joint problems,       earlier study, by Dr. Griffon's team,
Regenerative Medicine Techniques        using stem cells and Regenerated       yielded an equation based on
to Treat Cartilage Disorders. He        Osteochondral Plugs (ROPS) for         radiographic features of the tibia
hopes to advance the use of stem        healing and cartilage repair. These    and femur to calculate a predictive
cell therapy in canine orthopedics      cylinder plugs are composed of tri-    score and a large scale study has
for the mutual benefit of veterinary    layered hydrogel scaffolds, a mate-    just been completed to validate the
and human orthopedic patients and       rial similar to material used to make  ability of this equation to predict
his session covered the advances        soft contacts, seeded with adult       CCLD. It is the leading cause of
in regenerative medicine applied        mesenchymal stem cells (MSCs)          lameness and DJD in stifles and
to dogs with osteochondrosis and        that closely mimic specific zones      40% of those affected have the
osteoarthrits. The typical joint        in the joint and adjacent bone. The    disease in both legs. In her study
is made up of low friction, wear        layers are bioactive, directing the    they measured the tibia plateau
resistant tissue with cartilage that    encapsulated MSC's to differentiate    angle (TPA) which is the place on
has no nerves or blood vessels so       into specific tissues to restore nor-  the tibia which takes the most force
its repair ability is limited. In dogs mal joint anatomy and function and      from the femur during movement.
with Osteochondral Defects (OCD) eliminates the problem of donor               They found the greater the Tibia
there is an abnormality in the pro- site morbidity caused by osteochon-        thrust the greater the chance of
                                        dral transfer.                         developing CL rupture due to
                                        Canine MSCs                            abnormal forces. They also looked
Treatment options for diseases are hold much                                   at how muscles work in gait analysis
important but in some cases, being      promise for                            and found muscle mass imbalance
able to predict disease and the         ortho disease                          predisposes toward the disease.
                                        and they're                            The femoral anteversion angle
removal affected animals from the       now looking                            (FAA) is the equation of the angle
breeding pool is the best option        at MSCs for                            of the femoral condyle, where the
                                        bone regen-                            femur contacts the tibia, in relation
                                        eration. Us-                           to the femoral neck. This angle is
                                        ing PEG scaf-                          found by measuring the rotation, an
                                        folds is close                         actual twist, in the femur as seen on
cess by which growth plate cartilage to be a viable treatment option for       radiographs, which places abnormal
transitions from cartilage to bone      OCD treatment and joint rebuild-       stress on the stifle joint and cruciate
resulting in excessively thickened      ing. Having a breed so heavily af-     ligament. By applying the scores
cartilage that partially or completely  fected by ED and personally owning     of FAA and TPA of sound dogs
separates from surrounding bone.        dogs debilitated by the, I found this  compared to dogs with disease,
This creates a large loose frag-        study presentation and the results     they found that TPA and FAA
ment, termed a joint mouse, that        to be one of the most exciting of the  conformation contributed to
exposes the joint to the underlying     conference.                            predisposition to CCLD.
bone. Treatment options for OCD                                                They also found an
remained unchanged for years,             Treatment options for diseases       increase in calf muscle
with the common treatments being        are important but in some cases,       mass in affected
joint debridement (fibrocartilage),     being able to predict disease and      dogs and noted the
osteochondral transfer, or medical      the removal affected animals from      increased standing
management. Osteoarthritis is a         the breeding pool is the best option,  angle of the hock
common side effect of OCD, elbow        as proposed in the presentations       resulting in
dysplasia and hip dysplasia, and is a   given by Dr. Dominique Griffon on      increased energy
top 5 complaint by pet owners with      predicting cranial cruciate ligament   around the hock
80% of dogs having some form of         disease in dogs and Dr. Josh Stern's   and stifle. She
OA. One of the options for treat-       presentation on canine cardiac         noted that looking at
ment, Osteochondral Transfer, con-      genetics. Dr. Dominique Griffon's      standing angle alone
sisted of transplanting an autograph    presentation emphasized research       does not indicate
                                        aimed at predicting the risk of        predisposition
     plug from the knee that was        canine cruciate ligament disease       to CCLD because
     then grafted into a prepared       (CCLD) using the conformation

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