Evaluation of a circumferential femoral head osteophyte as an early indicator of osteoarthritis characteristic of canine hip dysplasia in dogs

Szabo, Stephanie D.; Biery, Darryl N.; Lawler, Dennis F.; Shofer, Frances S.; Powers, Michelle Y.; Kealy, Richard D.; Smith, Gail K.

doi:10.2460/javma.231.6.889

Cited by 28 publications

(28 citation statements)

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“…Presence of a circumferential femoral head osteophyte at 15-17 or at 24-27 weeks of age in our study did not significantly relate to later development of degenerative joint disease. Though this is not in accord with the Labrador retriever study, 13 the difference may be explained by a much later age at first diagnosis of circumferential femoral head osteophyte in that study (5.4 years), whereas 68% (62/91) of our dogs had a thick line, often with indistinct margins, at the junction of the femoral head and neck at 15-17 weeks of age, which we defined as a circumferential femoral head osteophyte. We suspect that many immature dogs with a circumferential femoral head osteophyte-like finding, actually had a temporary normal hyperostosis growth line at the metaphyseal-physeal junction, notably many of the Greyhounds.…”

Section: Discussioncontrasting

confidence: 75%

“…All 91 dogs reported here were of normal stature for breed and none were from chondrodystrophic breeds. Femoral head lines similar to those described in this report are regularly seen in adult chondrodystrophic dogs 13 and may warrant study to determine if there is any relationship of that finding to coxofemoral joint laxity in those individuals.…”

Section: Discussionsupporting

confidence: 58%

“…The caudolateral curvilinear osteophyte is a distinct white line on the femoral neck while the puppy line is a less distinct line on the femoral neck, both are seen on the extended hip ventrodorsal pelvic radiograph 11 . A circumferential femoral head osteophyte is also reported to be associated with degenerative joint disease due to canine hip dysplasia 13 . This radiographic finding has been defined as a thick, indistinctly margined to thin, faint, radiopaque line encircling the junction of the femoral neck and head at the region of attachment of the joint capsule 13 (Fig.…”

Section: Introductionmentioning

confidence: 99%

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Puppy Line, Metaphyseal Sclerosis, and Caudolateral Curvilinear and Circumferential Femoral Head Osteophytes in Early Detection of Canine Hip Dysplasia

Risler

Klauer

Keuler

et al. 2009

Vet Radiology Ultrasound

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Ventrodorsal extended hip radiographs were analyzed from Foxhounds, Irish setters, Greyhounds, and Labrador retrievers radiographed four to seven times between 8 and 110 weeks of age. Occurrence in these 91 dogs of a puppy line, an ill-defined zone of proximal femoral metaphyseal sclerosis, a femoral neck linear sclerosis, or circumferential linear femoral head osteophytosis at 15-17 weeks of age were compared with hip joint laxity, as measured by distraction index, and to later findings of caudal curvilinear femoral neck osteophytes, circumferential femoral head osteophytes, hip incongruity consistent with hip dysplasia and degenerative joint disease by 52 weeks of age. A puppy line and/or femoral metaphyseal sclerosis was common at 15-17 weeks of age for dogs at mimimal risk (Greyhounds) and high risk (Foxhounds) of developing early degenerative joint disease associated with canine hip dysplasia. Though 44% of Greyhound hips had puppy lines and 28% had femoral metaphyseal sclerosis at 15-17 weeks of age, no Greyhound had a caudolateral curvilinear osteophyte or circumferential femoral head osteophyte at 24-27 or 52 weeks of age. No significant relationship was found between occurrence of a puppy line, a circumferential femoral head osteophyte or femoral metaphyseal sclerosis at 15-17 weeks and canine hip dysplasia or degenerative joint disease incidence at 42-52 weeks. Presence of a caudolateral curvilinear osteophyte in at least one hip at 24-27 weeks was significantly related to the diagnosis of canine hip dysplasia by 42-52 weeks. When both a caudolateral curvilinear osteophyte and a circumferential femoral head osteophyte were present in a hip at 24-27 weeks, degenerative joint disease was evident in all such hips by 42-52 weeks of age.

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Section: Discussioncontrasting

confidence: 75%

Section: Discussionsupporting

confidence: 58%

Section: Introductionmentioning

confidence: 99%

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Puppy Line, Metaphyseal Sclerosis, and Caudolateral Curvilinear and Circumferential Femoral Head Osteophytes in Early Detection of Canine Hip Dysplasia

Risler

Klauer

Keuler

et al. 2009

Vet Radiology Ultrasound

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“…The stress caused by the insertion of the joint capsule into the hip joint has been postulated to be an important factor in its aetiology. Several studies, including that of Morgan (1987), have reported that remodelling of the joint capsule occurs and leads to the formation of osteophytes or enthesophytes (Mayhew et al 2002;Powers et al 2004;Szabo et al 2007). The topographical findings of our study showed that the CCOs are caudolaterally located on the femoral neck within the joint cavity and not at the insertion of the joint capsule.…”

Section: Discussionmentioning

confidence: 99%

A radiographic and anatomic study of caudolateral curvilinear osteophytes on the canine femoral neck

Pyszkova¹,

Pyszko²,

Páral³

et al. 2017

Vet. Med. - Czech

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Caudolateral curvilinear osteophytes (CCOs) are considered to be an important finding for the early detection of canine hip dysplasia. The objective of this study was to determine the association between the radiographic and anatomic appearance of CCOs, and to determine whether CCOs are indicative of osteoarthritis. One hundred canine femurs were used to determine the topographical location of CCOs on the femoral neck, and the anatomic and radiographic presence of CCOs and their association with weight, sex, osteoarthritis, and femoral morphometry. Three angles were calculated to assess femoral conformation. The alpha angle and gamma angle described the angulation of the proximal femur and femoral neck, respectively. The beta angle described the angulation of the distal femur. Anatomic CCO was not detected in four femurs. No radiographic CCO was detected in 35 femurs and osteoarthritis changes were not found in 30 femurs. Statistically significant relationships were observed between anatomic CCO, alpha angle, and gamma angle. Statistically significant associations were observed between radiographic CCO, alpha angle, and gamma angle. The results of this study support an association between radiographic CCO on the femoral neck and osteoarthritis changes in the proximal femur. It can also be concluded that CCOs develop in association with femoral neck angulation, and may therefore be considered as an adaptation to the forces created by body weight that act through the femoral neck.

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“…CFHO is a marked radiopaque line, encircling the junction between the femoral neck and the epiphysis, along the insertion of the joint capsule (Fig ) . Like CCO, its importance in the development of DJD has been debated.…”

mentioning

confidence: 99%

Intra‐ and Interobserver Agreement on Radiographic Phenotype in the Diagnosis of Canine Hip Dysplasia

Fortrie¹,

Verhoeven

Broeckx

et al. 2014

Veterinary Surgery

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Evaluation of a circumferential femoral head osteophyte as an early indicator of osteoarthritis characteristic of canine hip dysplasia in dogs

Abstract: Results indicated a relationship between the CFHO and subsequent development of radiographic signs of osteoarthritis. If a CFHO is present in Labrador Retrievers, it might be considered an early indicator of osteoarthritis.

Cited by 28 publications

References 5 publications

Puppy Line, Metaphyseal Sclerosis, and Caudolateral Curvilinear and Circumferential Femoral Head Osteophytes in Early Detection of Canine Hip Dysplasia

Puppy Line, Metaphyseal Sclerosis, and Caudolateral Curvilinear and Circumferential Femoral Head Osteophytes in Early Detection of Canine Hip Dysplasia

A radiographic and anatomic study of caudolateral curvilinear osteophytes on the canine femoral neck

Intra‐ and Interobserver Agreement on Radiographic Phenotype in the Diagnosis of Canine Hip Dysplasia

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