Quantitative evaluation of hip joint laxity in 22 border collies using computed tomography

Miori Kishimoto, Kazutaka Yamada, Sa Hun Pae, Naoyoshi Muroya, Hirokazu Watarai, Hiroshi Anzai, Junichiro Shimizu, Toshiroh Iwasaki, Yoh Ichi Miyake, Erik R Wisner

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


The purpose of this study was to obtain the computed tomography (CT) data for the hip joints of 22 Border Collies. The dorsolateral subluxation (DLS) score, lateral center edge angle (LCEA), dorsal acetabular rim angle (DARA) and center distance (CD) index were measured on the CT images in a weight-bearing position. Radiographic Norberg angle (NA) was also measured. The mean values were 45.7 ± 10.2% for DLS score, 85.9° ± 10.3° for LCEA, 18.5° ± 7.3° for DARA, 0.40 ± 0.17 for CD index and 102.7°± 6.9° for NA. Since the DLS score and LCEA showed strong correlation, combined use of these parameters might improve diagnostic accuracy. We consider CT evaluation in a weight-bearing position to be a useful method for multidirectional evaluation of hips.

Original languageEnglish (US)
Pages (from-to)247-250
Number of pages4
JournalJournal of Veterinary Medical Science
Issue number2
StatePublished - Mar 5 2009


  • Border collies
  • Canine
  • CT
  • Hip joint
  • Weight-bearing position

ASJC Scopus subject areas

  • veterinary(all)


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