{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T20:02:48Z","timestamp":1784750568507,"version":"3.55.0"},"reference-count":49,"publisher":"Public Library of Science (PLoS)","issue":"3","license":[{"start":{"date-parts":[[2021,3,18]],"date-time":"2021-03-18T00:00:00Z","timestamp":1616025600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["This work was supported by Centro de Investiga\u00e7\u00e3o Interdisciplinar em Sanidade Animal (CIISA), Faculdade de Medicina Veterin\u00e1ria, Universidade de Lisboa, through Grant UIDB\/00276\/2020, from the Portuguese Foundation for Science and Technology (FCT)."],"award-info":[{"award-number":["This work was supported by Centro de Investiga\u00e7\u00e3o Interdisciplinar em Sanidade Animal (CIISA), Faculdade de Medicina Veterin\u00e1ria, Universidade de Lisboa, through Grant UIDB\/00276\/2020, from the Portuguese Foundation for Science and Technology (FCT)."]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:sec id=\"sec001\"><jats:title>Objective<\/jats:title><jats:p>This study aimed to compare the symmetry of clinical and radiographic signs of right and left pelvic limbs of dogs with bilateral hip osteoarthritis (OA) and evaluate the association of physical findings and radiographic abnormalities.<\/jats:p><\/jats:sec><jats:sec id=\"sec002\"><jats:title>Patients and methods<\/jats:title><jats:p>One hundred pelvic limbs of police working dogs with bilateral hip OA were evaluated, following a screening program. Weight distribution, joint range of motion at flexion and extension, thigh girth, and radiographic signs were recorded and compared with the results of the contralateral limb and by breed, age, and sex with the Paired Samples T-Test and Pearson correlation coefficient, with p&lt;0.05.<\/jats:p><\/jats:sec><jats:sec id=\"sec003\"><jats:title>Results<\/jats:title><jats:p>The sample mean age was 6.5\u00b12.2 years, and the bodyweight of 26.7\u00b15.3kg. No significant differences were observed when comparing weight distribution, joint range of motion, and thigh girth of left and right limbs. Weight distribution and age showed a statistically significant correlation with joint extension. The right limbs showed a significantly higher frequency of circumferential femoral head osteophyte (CFHO) regarding radiographic signs. Limbs with CFHO or caudolateral curvilinear osteophyte had significantly larger joint flexion angle (p = 0.02) and smaller extension angle (p&lt;0.01), respectively, compared to those that did not. Age showed a significant correlation with the presence of several radiographic findings, as did different breeds.<\/jats:p><\/jats:sec><jats:sec id=\"sec004\"><jats:title>Conclusion<\/jats:title><jats:p>Clinical and radiographic signs occur symmetrically in naturally occurring hip OA in police working dogs. Several correlations were observed between the evaluations performed and differences between breeds, which can be useful in assessing and early diagnosis of hip OA.<\/jats:p><\/jats:sec>","DOI":"10.1371\/journal.pone.0248767","type":"journal-article","created":{"date-parts":[[2021,3,18]],"date-time":"2021-03-18T17:53:07Z","timestamp":1616089987000},"page":"e0248767","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":13,"title":["Comparison of clinical and radiographic signs of hip osteoarthritis in contralateral hip joints of fifty working dogs"],"prefix":"10.1371","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1329-3709","authenticated-orcid":true,"given":"J. 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