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On-line version ISSN 1678-4596
SILVEIRA, Douglas Severo et al. The 1 MHz therapeutic ultrasound, in doses of 0.5W cm-2, on dog's bone tissue evaluated through optic densitometry in radiographic images. Cienc. Rural [online]. 2008, vol.38, n.8, pp. 2225-2231. ISSN 1678-4596. http://dx.doi.org/10.1590/S0103-84782008000800021.
Tendon lesions on distal extremities of the limbs are among the most frequent alterations of the locomotor system in the human and animal clinic-surgery routine, and frequently need supplementary therapy for the complete recovery of the physiologic functions. The therapeutic ultrasound (TUS) is the mostly used apparatus in rehabilitation clinics to treat tendon lesions, but due to the lack or the divergence on specific studies about its effects in bone tissues, the use of TUS in distal regions of the members, which are rich in bony protuberances and muscle-less areas, always concern the medical professionals. For the purpose of enlightening the TUS effects on bone tissue, six dogs received a continuous ultrasound treatment of 1MHZ for 5 minutes per day on distal-skull area of radio and ulna during 20 days. The TUS intensity applied was 0.5W cm-2 in the right thoracic member leaving out the counter-lateral member for control. Before the beginning and in the end of the treatment, the distal area of both thoracic members were radiographed for analysis of bone densitometry in radiographic images. There wasn't any significant alteration in bone mineral density between the treated members and the control members. Based on the parameters used in this experiment one can conclude that the use of TUS in bony protuberances and muscle-less areas can be done with safety.
Keywords : rehabilitation; veterinary physiotherapy; bone mineral density.