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

2018 ◽  
Vol 31 (01) ◽  
pp. 023-029 ◽  
Author(s):  
Aldo Vezzoni ◽  
Evelien Bogaerts ◽  
Mileva Bertal ◽  
Tim Bosmans ◽  
Emmelie Stock ◽  
...  
Keyword(s):  
Hip Joint ◽  
Hip Dysplasia ◽  
Interobserver Agreement ◽  
Classification Criteria ◽  
Joint Laxity ◽  
Measurement Variability ◽  
Novel Method ◽  
The Individual ◽  
Canine Hip Dysplasia ◽  
Norberg Angle

Objectives Comparison of PennHIP and a novel method to diagnose hip laxity, called the Vezzoni modified Badertscher distension device technique. Methods In a total of 10 dogs, it was first assessed whether the distraction index (DI) from the PennHIP evaluation center could be reproduced by two individual observers. In the next two steps, the DI measurements made by the individual observers and the PennHIP evaluation center were compared with the laxity index (LI) measured on the Vezzoni modified Badertscher distension device view. Finally, the interobserver agreement of the DI, LI and Norberg angle was assessed and compared with classification criteria. Results The results were similar for the first three comparisons: there was no evidence for bias, the relation between DI and LI was linear and the variability was small. A comparison of the interobserver agreement showed that the measurement variability for the NA was substantial, while the reproducibility for the DI and LI was equal. Clinical Significance While the standard ventrodorsal hip extended radiograph is most commonly used for diagnosis and screening of canine hip dysplasia, it lacks sensitivity to diagnose laxity. To improve the identification of hip joint laxity, distraction-based radiographic techniques are helpful. The Vezzoni modified Badertscher distension device technique allows for a reliable in-house evaluation of canine hip joint laxity.

Radiographic Evaluation and Comparison of Plate Fixation after Triple Pelvic Osteotomy in 32 Dogs with Hip Dysplasia

1993 ◽  
Vol 06 (01) ◽  
pp. 09-15 ◽  
Author(s):  
H. A. W. Hazewinkel ◽  
R.C. Nap ◽  
B.P. Meij ◽  
W. Th. C. Wolvekamp ◽  
D. A. Koch
Keyword(s):  
Hip Joint ◽  
Hip Dysplasia ◽  
Dynamic Compression ◽  
Pelvic Osteotomy ◽  
Radiographic Evaluation ◽  
Dynamic Compression Plate ◽  
Compression Plate ◽  
Joint Congruence ◽  
Canine Hip Dysplasia ◽  
Norberg Angle

SummaryTriple pelvic osteotomy (TPO), as a treatment for canine hip dysplasia, was evaluated radiographically in 38 cases. Several parameters on radio-graphs of the pelvis, taken pre- and postoperatively, as well as six weeks and three months after the operation, were measured and compared. The results were also compared between iliac osteotomy fixation with the canine pelvic osteotomy plate (CPOP, n = 16) and the twisted dynamic compression plate (DCP, n = 22). Acetabular support (from 0.21 to 0.89), Norberg angle (from 77.6° to 111.8°) and hip joint congruence improved significantly after TPO. Dorsal pelvic width did not change, whereas, due to rotation, ventral pelvic width decreased to 80% of its pre-operative value. Osteophyte formation was judged to be moderate three months after the operation. Comparison of the two plating methods showed significant postoperative advantages for the CPO P group in terms of a higher Norberg angle and a better congruence. There was some loosening of 33% of the screws in both groups, but this did not interfere with the aim of the TP O procedure.The effect of triple pelvic osteotomy, as a treatment for canine hip dysplasia, was investigated retrospectively by means of radiographs. Acetabular support, the Norberg angle, and hip joint congruence improved significantly after the operation. Iliac osteotomy fixation, with the canine pelvic osteotomy plate, displayed advantages over the twisted dynamic compression plate. Screw loosening occurred frequently but without any major consequences.

Evaluation of Sacroiliac Wedge Rotation to Increase Acetabular Ventroversion

1999 ◽  
Vol 12 (04) ◽  
pp. 173-177 ◽  
Author(s):  
R. L. Aper ◽  
M. D. Brown ◽  
M. G. Conzemius
Keyword(s):  
Hip Joint ◽  
Hip Dysplasia ◽  
Clinical Effect ◽  
Pelvic Osteotomy ◽  
Alternative Method ◽  
Angular Measurements ◽  
Si Joint ◽  
In Vivo Effects ◽  
Canine Hip Dysplasia

SummaryTreatment of canine hip dysplasia (CHD) via triple pelvic osteotomy (TPO) is widely accepted as the treatment that best preserves the existing hip joint. TPO, however, has several important disadvantages. In an effort to avoid some of the difficulties associated with TPO an alternative method of creating acetabular ventroversion (AW) was sought. The purpose of this study was to explore the effects of placement of a wedge in the sacroiliac (SI) joint on A W and to compare this to the effect of TPO on A W . On one hemipelvis a 30° pelvic osteotomy plate was used for TPO. The contralateral hemipelvis had a 28° SI wedge inserted into the SI joint. Pre- and postsurgical radiographs of each pelvis were taken and the angular measurements were recorded. On average, the 28° SI wedge resulted in 20.9° of A W, the 30° canine pelvic osteotomy plate resulted in 24.9° A W . Significant differences were not found (p >0.05) between the two techniques. Sacroiliac wedge rotation effectively creates A W and has several theoretical advantages when compared to TPO. The in vivo effects of sacroiliac wedge rotation should be studied in order to evaluate the clinical effect of the technique.Sacroiliac wedge rotation was tested as an alternative method to increase the angle of acetabular ventroversion. This technique effectively rotated the acetabulum and has several theoretical advantages when compared to triple pelvic osteotomy.

Joint laxity in canine hip dysplasia assessed using the hip flexed not distracted ventrodorsal view

2020 ◽  
Author(s):  
L. Meomartino ◽  
A. Greco ◽  
G. Mennonna ◽  
L. Auletta ◽  
M. P. Pasolini ◽  
...  
Keyword(s):  
Hip Dysplasia ◽  
Joint Laxity ◽  
Canine Hip Dysplasia

scholarly journals Comparison of Reliability of Norberg Angle and Distraction Index as Measurements for Hip Laxity in Dogs

2020 ◽  
Vol 33 (04) ◽  
pp. 274-278
Author(s):  
Julius Klever ◽  
Andreas Brühschwein ◽  
Silvia Wagner ◽  
Sven Reese ◽  
Andrea Meyer-Lindenberg
Keyword(s):  
Correlation Coefficient ◽  
Clinical Significance ◽  
Intraclass Correlation Coefficient ◽  
Hip Joint ◽  
Interobserver Reliability ◽  
Intraclass Correlation ◽  
Joint Laxity ◽  
Intraobserver Reliability ◽  
Level Of Experience ◽  
Norberg Angle

Abstract Objective The main purpose of the study was to compare reliability of measurements for the evaluation of hip joint laxity in 59 dogs. Materials and Methods Measurement of the distraction index (DI) of the PennHIP method and the Norberg angle (NA) of the Fédération Cynologique Internationale (FCI) scoring scheme as well as scoring according to the FCI scheme and the Swiss scoring scheme were performed by three observers at different level of experience. For each dog, two radiographs were acquired with each method by the same operator to evaluate intraoperator-reliability. Results Intraoperator-reliability was slightly better for the NA compared with the DI with an intraclass correlation coefficient (ICC) of 0.962 and 0.892 respectively. The ICC showed excellent results in intraobserver-reliability and interobserver-reliability for both the NA (ICC 0.975; 0.969) and the DI (ICC 0.986; 0.972). Thus, the NA as well as the DI can be considered as reliable measurements. The FCI scheme and the Swiss scoring scheme provide similar reliability. While the FCI scheme seems to be slightly more reliable in experienced observers (Kappa FCI 0.687; Kappa Swiss 0.681), the Swiss scoring scheme had a noticeable better reliability for the unexperienced observer (Kappa FCI 0.465; Kappa Swiss 0.514). Clinical Significance The Swiss scoring scheme provides a structured guideline for the interpretation of hip radiographs and can thus be recommended to unexperienced observers.

scholarly journals Genetic dissection of canine hip dysplasia phenotypes and osteoarthritis reveals three novel loci

BMC Genomics ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Lea Mikkola ◽  
Saila Holopainen ◽  
Tiina Pessa-Morikawa ◽  
Anu K. Lappalainen ◽  
Marjo K. Hytönen ◽  
...  
Keyword(s):  
Hip Dysplasia ◽  
Cartilage Degradation ◽  
Chromosome 9 ◽  
Chromosome 1 ◽  
Severe Dysplasia ◽  
Genetic Dissection ◽  
Genes Encoding ◽  
Joint Incongruity ◽  
Canine Hip Dysplasia ◽  
Norberg Angle

Abstract Background Hip dysplasia and osteoarthritis continue to be prevalent problems in veterinary and human medicine. Canine hip dysplasia is particularly problematic as it massively affects several large-sized breeds and can cause a severe impairment of the quality of life. In Finland, the complex condition is categorized to five classes from normal to severe dysplasia, but the categorization includes several sub-traits: congruity of the joint, Norberg angle, subluxation degree of the joint, shape and depth of the acetabulum, and osteoarthritis. Hip dysplasia and osteoarthritis have been proposed to have separate genetic etiologies. Results Using Fédération Cynologique Internationale -standardized ventrodorsal radiographs, German shepherds were rigorously phenotyped for osteoarthritis, and for joint incongruity by Norberg angle and femoral head center position in relation to dorsal acetabular edge. The affected dogs were categorized into mild, moderate and severe dysplastic phenotypes using official hip scores. Three different genome-wide significant loci were uncovered. The strongest candidate genes for hip joint incongruity were noggin (NOG), a bone and joint developmental gene on chromosome 9, and nanos C2HC-type zinc finger 1 (NANOS1), a regulator of matrix metalloproteinase 14 (MMP14) on chromosome 28. Osteoarthritis mapped to a long intergenic region on chromosome 1, between genes encoding for NADPH oxidase 3 (NOX3), an intriguing candidate for articular cartilage degradation, and AT-rich interactive domain 1B (ARID1B) that has been previously linked to joint laxity. Conclusions Our findings highlight the complexity of canine hip dysplasia phenotypes. In particular, the results of this study point to the potential involvement of specific and partially distinct loci and genes or pathways in the development of incongruity, mild dysplasia, moderate-to-severe dysplasia and osteoarthritis of canine hip joints. Further studies should unravel the unique and common mechanisms for the various sub-traits.

Interobserver agreement in the diagnosis of canine hip dysplasia using the standard ventrodorsal hip-extended radiographic method

2007 ◽  
Vol 48 (7) ◽  
pp. 387-393 ◽  
Author(s):  
G. Verhoeven ◽  
F. Coopman ◽  
L. Duchateau ◽  
J. H. Saunders ◽  
B. van Rijssen ◽  
...  
Keyword(s):  
Hip Dysplasia ◽  
Interobserver Agreement ◽  
Radiographic Method ◽  
Canine Hip Dysplasia

scholarly journals 3D printing of canine hip dysplasia: anatomic models and radiographs

2020 ◽  
Vol 72 (3) ◽  
pp. 769-777
Author(s):  
R.Y.G. Nunez ◽  
L.K. Albuquerque ◽  
R.C.R. Pereira ◽  
R.P.M. Silva ◽  
P.F. Peruquetti ◽  
...  
Keyword(s):  
Diagnostic Method ◽  
Hip Dysplasia ◽  
Pathological Condition ◽  
3D Models ◽  
Educational Technologies ◽  
Hip Joints ◽  
Anatomic Models ◽  
Severity Of The Disease ◽  
Canine Hip Dysplasia ◽  
Norberg Angle

ABSTRACT Canine Hip Dysplasia (CHD) is a highly prevalent articular pathological condition. In this sense, radiography becomes an important diagnostic method to determine the presence and severity of the disease. The objective was to create 3D models and their respective radiographs representing the CHD (3D AMCHD). The research was carried out in the Laboratory of 3D Educational Technologies of UFAC, under no. 23107.007273/2017-49 (CEUA/UFAC). A canine skeleton (hip bone, femurs and patellae) was used without anatomical deformities compatible with DCF (pelvis, femurs and patella), which were scanned in order to obtain the files of the base model. In these files the deformations representing the different degrees of CHD were performed. Subsequently, the 3D AMCHD files were printed, mounted and X-rayed. The 3D AMCHD represented the bone deformations of the different degrees of CHD. In the radiographs of the 3D AMCHD it was possible to observe and determine each of the bones that constituted the hip joints. This allowed to reproduce the correct positioning to represent the CHD diagnosis and establish the precise points to determine the Norberg angle. In this way, it was evidenced that the 3D AMCHD can be a possible tool to be used in the Teaching of Veterinary Medicine.

Hip dysplasia: understanding the options (surgical management)

2019 ◽  
Vol 24 (5) ◽  
pp. 249-256
Author(s):  
Philip Georg Witte
Keyword(s):  
Surgical Management ◽  
Hip Dysplasia ◽  
Surgical Techniques ◽  
Individual Case ◽  
Developmental Dysplasia ◽  
Human Infants ◽  
Surgical Interventions ◽  
Surgical Options ◽  
The Individual ◽  
Canine Hip Dysplasia

The majority of vets in practice will be familiar with options for conservative management of canine hip dysplasia. However, there may be less familiarity with the various surgical options. Knowledge of the reported surgical techniques; selection criteria for these options; and their outcomes and potential complications provide the basis for an evidence-based approach to management of the individual case. In this article a brief comparison with developmental dysplasia of the hips in human infants is given by way of an introduction to surgical options, since there is some overlap with options for hip dysplasia in dogs. A description of the surgical interventions that have been reported for canine hip dysplasia is presented, and, where possible, the evidence regarding outcomes is summarised. It is hoped this article will help the general practitioner giving advice regarding surgical management of canine hip dysplasia.

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