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1

Use of distraction radiography in canine hip dysplasia: comparison of early and late results with two different distractors

100%
Gulanber E. G., Gulanber N. G., Albayrak N. R., Ozer K., Aktas M., Aksoy O.
Medycyna Weterynaryjna
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2006
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tom 62
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nr 11
1245-1248
In recent years, radiologic detection of passive joint laxity, i.e., distraction radiography, has become important in the early diagnosis of hip dysplasia in dogs. In this study, Ortolani Diagnosis and Distraction Index (DI), i.e., radiographic passive joint laxity, were determined for 122 dogs between 3- and 9-months-of-age, and this data was compared with adult period control radiographies (the period after 18-months-of-age). By this means an attempt was made to determine the relation between DI and Ortolani diagnosis, Norberg angle and Federation Cynologique Internationale (FCI) classification. A high correlation was established between the results taken by two types (PennHip and wooden lath) of distractors. Although no correlation was found between breed, age, sex, body weight and DI measurement, a significant correlation was found between DI measurement and FCI classification and Norberg angles after the age of 18 months. On the other hand, no significant correlation was found between Ortolani diagnosis and DI measurement and FCI-Norberg data after the age of 18 months. Consequently, the usage of distraction radiography was observed to be more effective than other clinical and radiographic methods in the early diagnosis of hip dysplasia in dogs.
2

Canine hip dysplasia of selected breeds - results obtained by two Polish clinics based on radiological examination conducted in 1997-2006

84%
Aleksiewicz R., Budzinska Z., Nowicki M., Adamiak Z., Lisiecka B.
Polish Journal of Veterinary Sciences
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2008
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tom 11
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nr 2
139-142
Canine Hip Dysplasia (CHD) is still a significant health problem among dogs of so called predisposed breeds where this disease is revealed even among 30% individuals of the whole population. The present results were obtained by two clinics and deal with CHD occurrence among the most frequently and predisposed breeds in Olsztyn and Siemianowice Śląskie/ Upper Silesia, Poland. Radiographs of hip joints were described using Riser's method. Altogether 2279 dog were examined including 2113 animals which were analysed. The German Shepherd Dog was the prevalent breed found in both clinics, but CHD was not common in this breed. In the Olsztyn Clinic, the most numerous group affected by CHD was Neapolitan Mastiff (60%), while in the Siemianowice Slaskie Clinic, dysplasia dominated in Bernese Mountain Dog (46%).
3

Hip biomechanics in orthopaedic clinical practice

84%
Antolic V., Kralj-Iglic V., Iglic A., Pompe B.
Cellular and Molecular Biology Letters
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2002
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tom 07
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nr 2
Radiographic and clinical studies, coupled with biomechanical assessment of the hip, are important tools for predicting the development of osteoarthitis of the hip. In order to better understand the treatment of hip dysplasia, it is necessary to determine the contact stress in the hip joint. In this study, a three-dimensional mathematical model was used to determine hip joint contact stress. Because of the discrepancy in the results of analyses of different radiographic indicators of hip dysplasia, the calculation of hip joint contact stress is proposed for a more accurate assessment of the severity of hip dysplasia.
4

Outcome of triple pelvic osteotomy in dogs is established within a month after the surgery

67%
Degorska B., Burzykowski T.
Bulletin of the Veterinary Institute in Puławy
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2011
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tom 55
|
nr 3
The purpose of our study was to evaluate the temporal aspect of the onset of the outcome of a triple pelvic osteotomy (TPO) in a group of 34 dogs younger (but one) than 12 months of age with a homogenous longer follow-up. In each case, lameness and positive Ortolani sign were detected. In some cases, bilateral TPO or denervation of the contralateral hip was performed. Clinical and radiological re-checks were performed in a uniform way for all dogs one and three months after surgery. The mean angle of reduction and subluxation for the operated joints decreased substantially by 17.3 ±1.58 degrees one month after the surgery, without any further statistically significant reduction at three months. Additionally , in 71% of the operated joints, the outcome of the TPO, defined in terms of the absence of the angle of reduction and subluxation, was already established at one month post-surgery and did not change at three months post-surgery. These results indicate that the outcome of the TPO in dogs is established within a month after the surgery and is basically maintained afterwards.
5

Effectiveness of modified Chiari osteotomy and intertrochnateric osteotomy in the treatment of canine hip dysplasia

67%
Aleksiewicz R., Adamiak Z., Fabisz R., Niedziela D., Bojarski M.
Bulletin of the Veterinary Institute in Puławy
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2010
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tom 54
|
nr 3
This paper describes the results of Chiari osteotomy (CO) with simultaneous intertrochanteric osteotomy (IO) in dogs affected by bilateral hip dysplasia, score grade D. The dogs classified for the study were subjected to the following tests before and after surgery: abduction-external rotation test, hip extension test, dorso-lateral subluxation test (DLST), stand test, Ortolani sign, Barlow sign, measurements of the angle of flexion, angle of extension, angle of abduction, angle of adduction, and radiographic examinations determining the score grade for canine hip dysplasia in accordance with the scoring system recommended by the Fédération Cynologique Internationale. The test which most accurately reflected the post-operative improvement in patients was DLST where the negative response increased by 73% after CO and IO procedures. Changes in angle of inclination (AI) values were correlated with an improvement in hip functioning as a result of the administered treatment. The simultaneous application of CO and IO in dogs affected by hip dysplasia resulted in greater improvement of limb functioning in comparison with conventional IO.
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