Objective—To evaluate the effects of a weight reduction program combined with a basic or more complex physical therapy program including transcutaneous electric nerve stimulation on lameness in overweight dogs with osteoarthritis.
Animals—29 adult overweight or obese dogs with a body condition score of 4/5 or 5/5 and clinical and radiographic signs of osteoarthritis.
Procedures—A weight-loss program was initiated for all dogs. One group received caloric restriction and a home-based physical therapy program. The other group received the identical dietetic protocol and an intensive physical therapy program including transcutaneous electrical nerve stimulation. Lameness was assessed clinically and by kinetic gait analysis on a treadmill with 4 force plates to measure symmetry of ground reaction forces (GRFs) of the affected and contralateral limbs in bimonthly intervals for 6 months.
Results—Significant weight loss was achieved in both groups; however, greater weight reduction was attained by dogs treated with caloric restriction and intensive physiotherapy. Mobility and symmetry indices of GRFs were improved after 6 months; the best outcome was detected in the group receiving energy restriction combined with intensive physical therapy.
Conclusions and Clinical Relevance—Caloric restriction combined with intensive physical therapy improved mobility and facilitated weight loss in overweight dogs. The combination of dietetic and physical therapy may help to improve the health status more efficiently than dietetic treatment alone.
Objective—To compare bone mineral measurements
obtained by use of dual-energy x-ray absorptiometry
(DEXA), peripheral quantitative computed tomography
(pQCT), and chemical-physical analyses and
determine effects of age and femur size on values
obtained for the various techniques.
Sample Population—Femurs obtained from 15 juvenile
and 15 adult large-breed dogs.
Procedure—In each femur, 7 regions of interest
were examined by use of DEXA to measure the
bone mineral content (BMC) and bone mineral density
(BMD), and 5 were examined by use of pQCT
to measure BMD. Among these, 1 region was
examined by both noninvasive methods and an
invasive method. Volume of the femur was determined
by water displacement. Volumetric bone
density (VBD) was calculated. Calcium (Ca), phosphorus
(P), total Ca, and total P contents were
Results—DEXA- and pQCT-derived results revealed
that all values increased with age in juvenile dogs. In
adults, VBD and pQCT-derived BMD decreased significantly
and DEXA-derived BMD increased with
increasing femur length. The pQCT-derived BMD correlated
well with VBD and Ca content, whereas
DEXA-derived BMC was strongly correlated with Ca
content. In juveniles, values correlated regardless of
the technique used, whereas in adult dogs, DEXA-derived
BMD did not correlate with pQCT-derived
BMD, Ca concentration, or VBD unless data were
adjusted on the basis of femur length.
Conclusions and Clinical Relevance—DEXA-derived
BMD adjusted for femur length yields
approximately the same percentage variability in VBD
as for pQCT-derived BMD. However, pQCT-derived
BMD is still more sensitive for determining variability
in Ca concentration, compared with DEXA-derived
BMD adjusted for femur length. (Am J Vet Res 2004;65:891–900)