Abstract
Objective
To evaluate the utility of pressure algometry for measuring muscular pain in dogs
by using a modified technique intended to prevent the development of a learned apprehension
response.
Study design
Prospective randomized clinical trial.
Animals
Sixty-three client-owned dogs with a history of restricted comfort or mobility.
Method
Pressure algometry was used to measure the mechanical nociceptive threshold (MNT)
in eight locations around the thoracolumbar junction. Dogs were assigned to one of
two groups: group A dogs (n = 22) were placed on a restricted exercise program, while group B dogs (n = 25) were placed on a restricted exercise program and were administered combined
acupuncture and manual therapy treatment (CAMT). After data collection in groups A
and B was complete, animals were recruited for a third (control) group, C (n = 16), that had no exercise restriction or treatment. Algometry measurements were
performed on four occasions over 28 days using a technique intended to prevent the
dogs from developing a learned apprehension response. Measurements from eight locations
were pooled and analyzed for changes over time.
Results
Increases in MNTs over time at all locations tested were identified in groups A and
B. In group C there were no significant changes in MNT or evidence of a learned apprehension
response.
Conclusion and clinical relevance
MNTs in dogs without exercise restriction or CAMT were consistently repeatable and
unchanged over time, indicating that there was no learned apprehension response to
pressure algometry using the modified technique. Therefore, the increasing MNT values
with time in dogs administered exercise restriction with or without CAMT suggests
improved muscular comfort of the thoracolumbar region. Although further research is
needed, use of this modified technique should improve the utility of pressure algometry
for measuring muscular pain in dogs.
Keywords
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Article info
Publication history
Accepted:
July 27,
2015
Received:
March 21,
2015
Identification
Copyright
© 2016 Association of Veterinary Anaesthetists and American College of Veterinary Anesthesia and Analgesia. Published by Elsevier Inc. All rights reserved.
