Comparison of three radiographic methods for diagnosis of hip dysplasia in eight-month-old dogs

Lust, George; Todhunter, Rory J.; Erb, Hollis N.; Dykes, Nathan L.; Williams, Abigail; Burton‐Wurster, Nancy; Farese, James P.

doi:10.2460/javma.2001.219.1242

Cited by 59 publications

(81 citation statements)

References 28 publications

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“…Quantitative measures of passive hip joint laxity such as the Norberg angle and distractive index derived from newer stress-radiographic diagnostic methods are also often used 4,22,23 . More recent diagnostic techniques include a dorsolateral subluxation test using radiography 7,8,16,17 , dynamic ultra-sonography 1 , computed tomography 8 and morphometric assessment of the canine hip joint using the dorsal acetabular rim view and the centre-edge angle 19 . A semiquantitative radiographic method of postoperative evaluation of traumatic hip dislocation was described in dogs 6 .…”

Section: Introductionmentioning

confidence: 99%

Volume of the ligamentum capitis femoris in osteoarthritic hip joints of adult dogs

Mande

Mbithi²,

Mbugua³

et al. 2003

J. S. Afr. Vet. Assoc.

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Ventrodorsal pelvic radiographs were made of 32 adult dogs under general anaesthesia. The hip joints were evaluated according to the severity of osteoarthritic changes graded as 0, 1, 2 or 3. The dogs were euthanased, the hip joints opened and the ligamentum capitis femoris dissected out in toto. The volume of each ligament was determined using a water displacement technique and the mean volume compared to the four radiographic grades of osteoarthritis. There was an inverse correlation (r = -0.75) between the mean volume of the ligamentum capitis femoris and the increasing severity of osteoarthritis as assessed by radiography. The results confirmed the crucial role of radiography in the clinical evaluation of hip dysplasia and osteoarthritis in the adult dog. Assessment of the volume of the ligamentum capitis femoris revealed that it is an important tool for research in canine hip dysplasia and osteoarthritis

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Section: Introductionmentioning

confidence: 99%

Volume of the ligamentum capitis femoris in osteoarthritic hip joints of adult dogs

Mande

Mbithi²,

Mbugua³

et al. 2003

J. S. Afr. Vet. Assoc.

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“…Hip dysplasia (HD) is the most important debilitating orthopaedic disease in large-and giant-breed dogs (Lust et al 2001;Thompson et al 2007;Dennis 2012;Smith et al 2012) and is one of the main areas of interest in veterinary orthopaedics (Martins et al 2012). HD is a polygenic and heritable condition dominated by a major gene (Thompson et al 2007;Dennis 2012); however, environmental factors influence the phenotypic expression and the severity of the disorder in affected individuals (Thompson et al 2007;Chalmers et al 2013).…”

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confidence: 99%

“…Despite intensive research worldwide, a marker-assisted accurate canine HD diagnosis test is still lacking (Ginja et al 2015). HD is characterised by subluxation of the femoral heads and joint laxity (Lust et al 2001;Gold et al 2009), which often leads to secondary debilitating osteoarthritis, with consequent pain and reduction in joint function (Adams et al 2000;Tomlinson and Johnson 2000;Lust et al 2001;Ohlerth et al 2001;Culp et al 2006; Thompson et al 2007;Ginja et al 2009). Radiography remains the established imaging technique for HD diagnosis doi: 10.17221/127/2016-VETMED (Andronescu et al 2015;Ginja et al 2015) and is the only accepted tool in large-scale screening of dogs for HD, even though it does not accurately reflect the desired genetic pool (Fluckiger et al 1999).…”

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confidence: 99%

Effects of pelvis rotation on the projected radiographic position of the femoral head in relationship to the acetabulum

Jd¹,

Colaço²,

Alves‐Pimenta³

et al. 2017

Vet. Med. - Czech

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ABSTRACT:The aim of this study was to describe the influence of pelvis rotation on the projected radiographic position of the femoral head in relationship to the acetabulum in the standard ventrodorsal hip extended view, i.e. Norberg angle, pelvic thickness at the level of the cranial effective acetabular rim, femoral head subluxation index, femoral head subluxation category and femoral head-acetabular distance. Twelve adult dogs of large and giant breeds were radiographed in standard hip extended view and with 2°, 4° and 6° of rotation on the right and left sides. Norberg angle, pelvic thickness, subluxation index, subluxation category and femoral head-acetabular distance were measured on radiographs and analysed comparing a normal position with positions of different degrees of rotation for the dependent and non-dependent side. All the studied parameters showed adequate repeatability. Norberg angle and femoral head-acetabular distance did not show significant mean differences in all degrees of rotated pelvis (P > 0.05). The pelvic thickness showed an increase with the degree of rotation on the dependent side (P < 0.05) and a slight decrease on the non-dependent side (P > 0.05). The subluxation index and subluxation category showed an increase with the degree of rotation on the dependent side and a decrease on the non-dependent side (P < 0.05). As the subluxation index and subluxation category are parameters used in the classification of the main international hip dysplasia scoring systems, pelvic rotation can impair the final hip score, especially in scoring systems that are based on the worst joint.

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“…Joint laxity and dorsolateral subluxation of the femoral head are both important factors in the diagnosis of canine hip dysplasia [4,5,7,8,10,11]. Computed tomography in the standing position has been performed in some reports [2-4, 6, 9].…”

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confidence: 99%

“…The dorsolateral subluxation score was determined in two projections by measuring the percentage of the diameter of the femoral head medial to the lateralmost points of the cranial and dorsal acetabular rims. Two lines were then drawn perpendicular to this line: one at the lateral aspect of the dorsal acetabular rim and one at the medial aspect of the femoral head [4,8,11]. The lateral center edge angle was defined as the angle determined by the dorsal edge of the acetabulum, the center of the femoral head, and a horizontal line on CT images [1,6].…”

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confidence: 99%

Laxity of Canine Hip Joint in Two Positions with Computed Tomography

Fujiki

Misumi

Sakamoto

2004

The Journal of Veterinary Medical Science

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ABSTRACT. Computed tomographic (CT) examination of 20 canine hip joints was carried out in two positions, normal-standing and weightbearing. In normal (dorsal acetabular rim angle: DARA < 15°) or slightly abnormal (DARA, 15° to 20°) hip joints, the values of parameters to laxity were evaluated as more severe in the weight-bearing position. Comparisons of results using various indicators, including the center distance (CD) index, dorsolateral subluxation score, and lateral center edge angle, revealed that the CD index may be a useful marker of functional laxity in the canine hip joint under CT scanning. Further, CT scanning in the weight-bearing position was more sensitive than in the normal-standing position for the detection of laxity in hips with normal or only slightly abnormal DARA.

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Comparison of three radiographic methods for diagnosis of hip dysplasia in eight-month-old dogs

Abstract: Results suggested that specificities of the 3 methods for diagnosing hip dysplasia in dogs at 8 months of age were similar. However, the DLS score had higher sensitivity, indicating that there were fewer false-negative results.

Cited by 59 publications

References 28 publications

Volume of the ligamentum capitis femoris in osteoarthritic hip joints of adult dogs

Volume of the ligamentum capitis femoris in osteoarthritic hip joints of adult dogs

Effects of pelvis rotation on the projected radiographic position of the femoral head in relationship to the acetabulum

Laxity of Canine Hip Joint in Two Positions with Computed Tomography

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