Comparison of Three Methods to Quantify Laxity in the Canine Hip Joint

Broeckx, Bart J. G.; Vezzoni, Aldo; Bogaerts, Evelien; Bertal, Mileva; Bosmans, Tim; Stock, Emmelie; Deforce, Dieter; Peelman, Luc; Saunders, Jimmy

doi:10.3415/vcot17-05-0064

Cited by 28 publications

(16 citation statements)

References 22 publications

(27 reference statements)

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“…Radiographs were obtained in the same sequence with the dogs in dorsal recumbency on the X-ray table: first the HEV and then two distraction views with the distractor device placed between the hind limbs to promote passive hip laxity, first using the CertD and followed by the second distraction view using the Dis-UTAD. The Dis-UTAD is a modified Vezzoni distension device with an isosceles trapezoid shape (9); it has an external rubber component and a polyethylene plate in the interior that gives it longitudinal flexibility and transverse stiffness (11). With the dog in dorsal recumbency, hip distraction was achieved in a similar way to the PennHIP and Vezzoni techniques (5,9).…”

Section: Radiographic Proceduresmentioning

confidence: 99%

“…The Dis-UTAD is a modified Vezzoni distension device with an isosceles trapezoid shape (9); it has an external rubber component and a polyethylene plate in the interior that gives it longitudinal flexibility and transverse stiffness (11). With the dog in dorsal recumbency, hip distraction was achieved in a similar way to the PennHIP and Vezzoni techniques (5,9). Both femurs were adducted by the examiner symmetrically in a neutral position (+/−10 degrees) against the distractor, fixed on the animal with the support of two cylindrical sandbags weighing ∼4 kg each, one at the front and one at the distractor's back (Figure 1).…”

Section: Radiographic Proceduresmentioning

confidence: 99%

“…Although HEV has been shown to be a valuable tool in evaluating the presence of OA, it can severely underestimate HJL because of the non-physiological tensioning of the pelvic muscles and twisting of the joint capsule (5). Distraction-stress radiography techniques are used to better estimate the degree of passive HJL through the calculation of distraction index (DI) (5,9). In the hip distraction view, the femoral heads are displaced laterally by the use of a custom-designed device (distractor) placed between the legs that acts as a fulcrum on the femur at the level of the ventral aspect of the pelvis (5).…”

Section: Introductionmentioning

confidence: 99%

“…The DI is obtained by dividing the lateral femoral head displacement by its radius; a DI of 0 represents absolute joint congruity and a DI of 1 represents complete joint luxation (5). The hip joint distractors PennHIP (5,7) and "FSA-Fondazione Salute Animale" (9) have been used in published works to obtain hip distraction views.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of Two Distraction Devices for Assessment of Passive Hip Laxity in Dogs

Santana

Alves‐Pimenta

et al. 2020

Front. Vet. Sci.

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Canine hip dysplasia is the most common orthopedic developmental condition in the dog and early hip laxity is the main risk factor. The importance of hip laxity in young animals in the development of hip dysplasia is unanimously recognized among researchers and veterinarians due to its medical applicability in terms of disease control and prevention. In the market, there is some certified hip distractors to promote joint laxity. However, the clinical use of some of these distractors complies with a set of usage rules, that can limit its medical application. In this study was compared the technical quality of radiographs and hip distraction using a certified hip distractor (CertD) and Dis-UTAD in 104 dogs (208 joints). The mean pelvic tilting of 1.5 ± 1.6 • and 1.5 ± 1.8 • were similar when using the CertD and the Dis-UTAD distractors, respectively (P > 0.05). In the CertD sample, the mean hip distraction index (DI) was 0.46 ± 0.17 and in the Dis-UTAD 0.46 ± 0.16; the mean DI differences was 0.001 ± 0.045, resulting in a non-significant paired t-test (P = 0.65) and a significant intraclass correlation coefficient of 0.96, with the 95% lower limit confidence interval of 0.95 (P < 0.05). The statistical power analysis showed a very low distraction index difference effect size. The results suggest that the statistical reproducibility of CertD hip distraction by the Dis-UTAD and the DI mean differences of 0.001 might be considered without clinical importance. The Dis-UTAD might be considered adequate to promote dog hip laxity.

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Section: Radiographic Proceduresmentioning

confidence: 99%

Section: Radiographic Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparison of Two Distraction Devices for Assessment of Passive Hip Laxity in Dogs

Santana

Alves‐Pimenta

et al. 2020

Front. Vet. Sci.

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“…Increased hip joint laxity has been shown as one of the most important factors for prediction of canine hip dysplasia [10]. Therefore procedures based on the measurement of laxity have been developed during the last decades [11] [12][13] [14]. PennHIP (Pennsylvania Hip Improvement Program) is one of the most popular methods that has been proven and is widely accepted, especially in the United States.…”

Section: Introductionmentioning

confidence: 99%

Distraction index and Norberg angle to distinguish dysplastic and non-dysplastic hips based on FCI score

Klever¹,

Brühschwein²,

Meyer‐Lindenberg³

2020

Tierarztl Prax Ausg K Kleintiere Heimtiere

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Objective Radiographic hip scoring according to the Fédération Cynologique Internationale (FCI) and PennHIP (Pennsylvania Hip Improvement Program) method was performed with the purpose to compare the PennHIP and FCI results as well as coxofemoral joint laxity by correlation of Norberg angle and distraction index measurements. Materials and methods A total of 167 dogs of various breeds presented for official screening examination in a veterinary teaching hospital in Germany were included. Using receiver operating characteristic analysis, the best Norberg angle and distraction index cut-off values to distinguish between dysplastic and non-dysplastic groups based on FCI grades and to distinguish between lax and tight hip joints according to the PennHIP proposal were calculated. Results More than one third (38.2 %) of dogs that passed the breeding criterions according to FCI (grades A and B) were in the half of the population with lax hip joints and should not be used for breeding according to the PennHIP proposal. A cut-off value for the distraction index of 0.44 with sensitivity of 82.7 % and specificity of 84.2 % was superior to the best cut-off value for the Norberg angle at 101.8° with sensitivity of 82.7 % and specificity of 71.9 % to discriminate between non-dysplastic joints (A, B) and dysplastic joints (C, D, E). Conclusions and clinical relevance Our results show a limited impact of laxity on the FCI grading. Breeding selection processes that are based on the FCI method could profit by an additional and complementary use of the distraction index.

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Incorporating Genetic Testing into a Breeding Program

Broeckx

2023

Veterinary Clinics of North America: Small Animal Practice

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Comparison of Three Methods to Quantify Laxity in the Canine Hip Joint

Cited by 28 publications

References 22 publications

Comparison of Two Distraction Devices for Assessment of Passive Hip Laxity in Dogs

Comparison of Two Distraction Devices for Assessment of Passive Hip Laxity in Dogs

Distraction index and Norberg angle to distinguish dysplastic and non-dysplastic hips based on FCI score

Incorporating Genetic Testing into a Breeding Program

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