Pediatrics

Authors: Choate CJ, Arnold GA.
Journal: VCOT

A 10-month-old Yorkshire Terrier was referred for evaluation of an intermittent right thoracic limb lameness that acutely progressed to non-weight-bearing. A diagnosis of bilateral bone cysts of the humeral condyles with a pathologic fracture of the lateral aspect of the right humeral condyle was given following radiographic and histopathologic examination. Bilateral pathology necessitated consideration of treatment modalities other than amputation of the limb, as previously reported. Arthrodesis of the right elbow using a 2.0 mm locking bone plate was performed.

Authors: Brunnberg MM, Engelke E, Gielen IM, van Bree HJ, Hoffmann JE, Brunnberg L, Waibl HR.
Journal: AJVR

Objective-To evaluate cartilage thickness of the talus (especially at sites predisposed to osteochondrosis dissecans [OCD]) in growing and adult dogs not affected with OCD. Sample-Tarsocrural joints from cadavers of 34 juvenile (approx 3 months old) and 10 adult dogs. Procedures-Tarsal cartilage thickness was examined via a stereophotography microscopic system. Articular cartilage thickness was determined at 11 locations on longitudinal slices of the trochlear ridges and the sulcus between the ridges and at 2 locations in the cochlea tibiae.

Authors: Wentzell ML.
Journal: Can Vet J

A 10-week-old intact female Australian shepherd dog was presented sternally recumbent, mildly pyrexic, and painful on long bone palpation of both forelimbs. Based on radiographs she was diagnosed with hypertrophic osteodystrophy. Analgesia was provided with intravenous, oral, and topical medications. Approximately 2 wk later she was presented for facial swelling, regional dermatitis, and lymphadenopathy. Canine juvenile cellulitis was diagnosed and successfully treated.

Category: Biologics - Pediatrics
Authors: McBrien CS Jr, Vezzoni A, Conzemius MG.
Journal: Vet Surg

Objective: To determine growth of the proximal tibial physis in the Labrador Retriever, a breed of dog at risk for rupture of the cranial cruciate ligament (CCL). Animals: Male Labrador Retriever dogs (n=6). Methods: Tantalum markers (0.5 mm diameter) were implanted in the right proximal tibial epiphysis and metaphysis of each dog at 16 weeks of age. Lateral and craniocaudal radiographic projections of the tibia were made monthly and longitudinal growth was assessed from radiographs; a growth curve was generated from the data.

Category: Biologics - Knee - Pediatrics
Authors: D'Amico LL, Xie L, Abell LK, Brown KT, Lopez MJ.
Journal: AJVR

OBJECTIVE: To assess relationships of acetabular volume (AV), femoral head volume (FV), and portion of the femoral head within in the acetabulum (FVIA) with each other and with degrees of hip joint laxity and degenerative joint disease from youth to maturity in dogs predisposed to developing hip joint osteoarthritis (OA).
ANIMALS: 46 mixed-breed half- or full-sibling hound-type dogs.

Authors: D. J. F. von Pfeil (1), C. E. DeCamp (2), C. Agnello (3), B. A. Steficek (4)
Journal: VCOT

A five-month-old male, German Shorthaired Pointer dog was presented for severe, bilateral, thoracic-limb-lameness, with elbow swelling, pain, and crepitus. Radiography and computed tomography confirmed bilateral incomplete ossification of the humeral condyles (IOHC), with a non-displaced incomplete fracture of the left medial epicondylar crest and condylar deformity, characterised by enlargement of the trochleas with extension of the disto-medial aspect of the bone below the normal elbow joint level, and a deformed proximo-medial aspect of the ulna and radius.

Category: Deformity - Elbow - Pediatrics
Authors: A. Vezzoni (1), S. Boiocchi (1), L. Vezzoni (1), A. B. Vanelli (1), V. Bronzo (2)
Journal: VCOT

The aim of this study was to evaluate the feasibility of the double pelvic osteotomy (DPO) (osteotomy of the ilium and pubis) to treat clinical cases of hip dyplasia in young dogs instead of performing a triple pelvic osteotomy (TPO) (osteotomy of the ilium, pubis, and ischium). Candidates for DPO were 4.5- to nine-month-old dogs with coxofemoral joint subluxation and laxity, indicative of susceptibility to future development of severe hip dysplasia.

Category: Hip - Pediatrics
Authors: Frazho JK, Graham J, Peck JN, De Haan JJ.
Journal: Vet Surg

OBJECTIVE: To determine if a secondary center of ossification (SCO) of the anconeal process is present in skeletally immature dogs that do not develop an ununited anconeal process (UAP).
STUDY DESIGN: Case series.
ANIMALS: Dogs 77-154 days of age with conditions other than developmental disease of the elbow (n=78 dogs; total elbows=100).
METHODS: Mediolateral radiographic projections of the elbow were reviewed for presence or absence of a SCO of the anconeal process.

Category: Elbow - Imaging - Pediatrics
Authors: Marcellin-Little DJ, Sutherland BJ, Harrysson OL, Lee ES.
Journal: AJVR

OBJECTIVE: To design and manufacture free-form biodegradable polycaprolactone (PCL) bone plates and to compare mechanical properties of femoral constructs with a distal physeal fracture repaired by use of 5 stabilization methods.
SAMPLE POPULATION: 40 canine femoral replicas created by use of additive manufacturing and rapid tooling.

Authors: Temwichitr J, Leegwater PA, Auriemma E, Van't Veld EM, Zijlstra C, Voorhout G, Hazewinkel HA.
Journal: AJVR

Objective-To study radiographic and genetic aspects of hereditary radial head subluxation in Bouviers des Flandres. Animals-26 related Bouviers des Flandres affected with bilateral subluxation of the radial head, 10 unaffected related dogs, and 29 unrelated Bouviers des Flandres with diagnoses of nonskeletal diseases. Procedures-All dogs were radiographically studied, and their DNA was analyzed with a genome-wide screen of 1,536 single nucleotide polymorphisms. In addition, karyotyping was performed in an unaffected dam and its affected offspring.