Canine hip dysplasia radiographic screening. Prevalence of rotation of the pelvis along its length axis in 7,012 conventional hip extended radiographs

SummaryThe prevalence of rotation of the pelvis along its length axis was noted, as was the number of rotations towards the right or left hand side of the dog, on 7,012 conventional hip extended radiographs, which were sent for official screening. 29.8% of the radiographs showed a rotation the pelvis. The rotation was statistically more frequent towards the left hand side of the dog. The number of rejected radiographs for too important pelvis rotation was only 5.2%. The consequences of the pelvis rotation on the Norberg-Olsson angle, on the dorsal femoral head coverage, and in the aspect of cranial acetabular edge have to be taken into account when scoring the dog for hip dysplasia.

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

Veterinární Medicína ◽

10.17221/127/2016-vetmed ◽

2017 ◽

Vol 62 (No. 7) ◽

pp. 377-385 ◽

Cited By ~ 2

Author(s):

J. Martins ◽

B. Colaco ◽

S. Alves-Pimenta ◽

A. Ferreira ◽

M. Ginja

Keyword(s):

Femoral Head ◽

Hip Dysplasia ◽

Scoring Systems ◽

Normal Position ◽

Pelvis Rotation ◽

Mean Differences ◽

The Right ◽

Extended View ◽

Norberg Angle

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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Prevalence of canine hip dysplasia in 10 breeds in France, a retrospective study of the 1997-2017 radiographic screening period

PLoS ONE ◽

10.1371/journal.pone.0235847 ◽

2020 ◽

Vol 15 (7) ◽

pp. e0235847 ◽

Cited By ~ 1

Author(s):

Arnaud Baldinger ◽

Jean-Pierre Genevois ◽

Pierre Moissonnier ◽

Anthony Barthélemy ◽

Claude Carozzo ◽

...

Keyword(s):

Retrospective Study ◽

Hip Dysplasia ◽

Radiographic Screening ◽

Canine Hip Dysplasia

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Canine Femoral Neck Lengthening Combined with DARthroplasty to Manage Severe Canine Juvenile Hip Dysplasia: A Case Report

VCOT Open ◽

10.1055/s-0039-1694036 ◽

2019 ◽

Vol 02 (02) ◽

pp. e25-e29

Author(s):

Massimo Petazzoni ◽

Melania Dallago

Keyword(s):

Case Report ◽

Femoral Head ◽

Femoral Neck ◽

Hip Dysplasia ◽

Case Description ◽

Femoral Head Coverage ◽

Design Case ◽

Hip Luxation ◽

Acetabular Rim

Objective This study is a case description of femoral neck lengthening and dorsal acetabular rim (DAR) arthroplasty to treat severe hip luxation in a 5-month-old male Cocker Spaniel (14.3 kg) and to compare the clinical outcome with that of contralateral femoral neck excision. Study design Case report. Results Femoral head coverage improved after surgery (preoperative lateralization of the centre of the femoral head with regard to the dorsolateral acetabular rim: 10 mm; postoperative lateralization of the centre of the femoral head: –1.3 mm). The postoperative Barden's test was negative. The dog was bearing weight 2 weeks postoperatively. Radiographic signs of bone healing were present at the 6-week follow-up examination. No complications were detected. Conclusions Femoral neck lengthening and DAR augmentation were performed in a growing dog affected by severe hip luxation and DAR insufficiency.

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Simultaneous Bilateral Femoral Head and Neck Ostectomy for the Treatment of Canine Hip Dysplasia

Journal of the American Animal Hospital Association ◽

10.5326/0410166 ◽

2005 ◽

Vol 41 (3) ◽

pp. 166-170 ◽

Cited By ~ 14

Author(s):

Elizabeth A. Rawson ◽

Michael G. Aronsohn ◽

Ronald L. Burk

Keyword(s):

Femoral Head ◽

Head And Neck ◽

Hip Dysplasia ◽

Normal Activity ◽

Postoperative Recovery ◽

Activity Levels ◽

Hip Disease ◽

Surgical Options ◽

Owner Satisfaction ◽

Canine Hip Dysplasia

Simultaneous bilateral femoral head and neck ostectomy (FHO) was performed on 15 dogs for severe bilateral hip dysplasia. A follow-up survey was performed 6 to 48 months after surgery to assess the postoperative recovery and activity levels of the operated dogs. All dogs had normal activity levels and were pain free according to their owners. Owner satisfaction regarding the outcome of the surgery was high. Simultaneous bilateral FHO was a viable surgical option for the treatment of painful bilateral hip disease in dogs, especially when other surgical options were not indicated or were cost prohibitive.

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Comparison of 2.5D and 3D Quantification of Femoral Head Coverage in Normal Control Subjects and Patients with Hip Dysplasia

PLoS ONE ◽

10.1371/journal.pone.0143498 ◽

2015 ◽

Vol 10 (11) ◽

pp. e0143498 ◽

Cited By ~ 7

Author(s):

Hui Cheng ◽

Li Liu ◽

Weimin Yu ◽

Hong Zhang ◽

Dianzhong Luo ◽

...

Keyword(s):

Femoral Head ◽

Normal Control ◽

Hip Dysplasia ◽

Femoral Head Coverage ◽

Control Subjects

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Chiari pelvic osteotomy in treatment of hip dysplasia

Srpski arhiv za celokupno lekarstvo ◽

10.2298/sarh1310710s ◽

2013 ◽

Vol 141 (9-10) ◽

pp. 710-714 ◽

Cited By ~ 1

Author(s):

Nemanja Slavkovic ◽

Zoran Vukasinovic ◽

Milan Apostolovic ◽

Boris Vukomanovic

Keyword(s):

Femoral Head ◽

Distal Part ◽

Hip Dysplasia ◽

Young Patients ◽

Pelvic Osteotomy ◽

Femoral Head Coverage ◽

Developmental Hip Dysplasia ◽

Chiari Osteotomy ◽

Chiari Pelvic Osteotomy

Chiari pelvic osteotomy is a surgical procedure having been performed for almost sixty years in patients with the insuffcient coverage of the femoral head. It is most frequently used in young patients with dysplastic acetabular sockets as a part of developmental hip dysplasia. Even though performance of the Chiari osteotomy is associated with positive therapeutical results, above all, its main goal is to delay inevitable degenerative changes. Original surgical technique has been modified and improved over time. Nevertheless, the basic idea has remained unchanged - increasing of the femoral head coverage by medial displacement of the distal part of the pelvis along with capsular interpositioning. Given the complexity of operation, the complication percentage is rather low. Chiari pelvic osteotomy has lost its actuality and importance during this past six decades. The role of Chiari pelvic osteotomy has been considerably taken over by other more efficient and more lasting surgical procedures. Nonetheless, Chiari pelvic osteotomy is still present in modern orthopedic practice, above all as ?salvage? osteotomy.

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