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At least 1,009 records · Page 56Linked to original sources
PubMed1997

Rickets in a litter of racing greyhounds.

Rickets was diagnosed in six 14-week-old racing greyhound littermates presented with musculoskeletal disease. Physical findings included listlessness, profound muscle weakness, lameness, lateral bowing of the antebrachii and focal hard swellings proximal to the tarsi and carpi. Radiological findings included generalised osteopenia, axial and radial thickening of growth plates, and "cupping' of the adjacent metaphyses; the distal ulnar growth plates were most severely and consistently affected. The diagnosis was confirmed by demonstrating subnormal concentrations of 25-hydroxycholecalciferol in serum samples collected at admission. The pups' diet consisted of an inexpensive generic kibble formulated for adult dogs, porridge, milk, pasta, minced beef, vegetables and a small quantity of calcium carbonate powder. The pups were successfully treated by feeding a nutritionally complete, vitamin D-containing ration formulated for growing pups. Bilateral growth retardation of distal ulnar physes occurred as a sequel in one pup.

Animals↗
PubMed1998

Arthrodesis of the tarsometatarsal joint using a laterally applied plate in 10 dogs.

The efficacy of tarsometatarsal arthrodesis using a laterally applied plate was evaluated retrospectively in 10 dogs (11 joints). Arthrodesis was performed to manage a tarsometatarsal subluxation in two hocks; in the other cases, the tarsometatarsal subluxation was accompanied by tarsal or metatarsal fractures. The average period to referral was 15 days and all dogs had been managed with previous external coaptation of the affected limb. Arthrodesis was achieved in all the joints following initial surgery. Implant removal was indicated in three dogs which remained intermittently lame. Implants were left in situ in the remaining seven dogs. After an average follow-up period of 28 months, all dogs had resumed normal activity. Seven dogs were reported to be completely sound, one was stiff after rest following vigorous exercise and two had an intermittent mild lameness following strenuous exercise.

Animals↗
PubMed2000

Talar neck fractures in five cats.

Five cats with fracture of the talar neck were treated using external skeletal fixation (ESF). In four of the cases, ESF was the only fixation technique used and this was applied in a closed manner coupled with traction. In the remaining cat, ESF was used in combination with a lag screw. All the fractures eventually healed, demonstrating that ESF provided a simple and effective method of treatment for these cases.

Animals↗
PubMed1984

Some observations on the development of the long bones of ratite birds.

Observations were made on the long bones of 16 young ratite birds (10 rheas, 3 emus and 3 ostriches), from 1-day-old to 12 weeks of age. At hatching all long bones contained large cartilaginous cones which were continuous with the growth plates, and an osseous cortex. At one week of age ossification had commenced on the periphery of these embryonic cones and in some bones the cones had become separated from the growth plates. At 3 weeks of age the embryonic cones of cartilage were still present in the proximal and distal tibio-tarsi and narrow cartilaginous bridges connected the cones to the growth plates. Embryonic cones were not present in other long bones of this 3-week-old rhea nor in the long bones of ratites 6, 8 and 12 weeks of age. Other praecocial birds such as turkey poults and chickens have cones of embryonic cartilage in their long bones at hatching and these persist in the tibio-tarsi till one to 2 weeks of age. The presence of large cones of embryonic cartilage in the tibio-tarsal bones of 3-week-old ratite birds is probably a normal phenomenon. Awareness of this feature is necessary for the correct differential diagnosis of the prevalent musculoskeletal disorders of ratite birds.

Animals↗
PubMed1998

Factors on farms in eastern Australia associated with the development of tibiotarsal rotation in ostrich chicks.

OBJECTIVES: To determine the incidence of tibiotarsal rotation (TTR) in ostrich chicks and to identify factors on farms associated with the development of TTR. DESIGN: A cross-sectional study using a personal interview. PROCEDURE: During a single visit to 31 farms, data were collected about a defined cohort of chicks, and about farm-related factors that may be associated with the development of TTR. Farms were categorised for TTR status according to the proportion of the chick cohort that survived to 10 weeks of age without developing TTR. Chick performance was measured using descriptive epidemiological methods and univariable analyses were conducted to identify unconditional associations between TTR status and farm-related factors. RESULTS: Ninety-six of 931 ostrich chicks from 21 (68%) farms developed TTR during the first 10 weeks following hatch. Lower limb deformities were the most common cause of death in chicks between 3 and 10 weeks of age. On seven (23%) study farms, where less than 87% of young chicks survived to 10 weeks without developing this condition, TTR was considered a serious problem. Twelve farm-related factors were associated with farm TTR status, including eight chick-related variables (aspects of nutrition, pen design and management) and four farm-related variables (related to the number of veterinary visits, farm location, number of rainy days and the person most closely involved with chick raising. CONCLUSION: The results confirm a continuing problem of young chick wastage in eastern Australia. TTR was an important cause of mortality in farmed ostrich chicks during the first 10 weeks after hatch. The factors that producers could address to reduce the incidence of TTR include pen design, access to water and nutrition.

Age Factors↗
PubMed1985

Lag screw fixation of sagittal navicular bone fractures in five horses.

A sagittal fracture of the navicular bone in five horses was treated by means of lag screw. Intra-operative radiographic monitoring and a specially developed guide apparatus was necessary to implant the screw precisely along the transverse axis of the navicular bone. Internal fixation resulted in progressive radiographic narrowing of the fracture zone. In all five patients the fracture healed (bony union) without superfluous callus formation.

Animals↗
PubMed1988

Quantification of skin displacement near the carpal, tarsal and fetlock joints of the walking horse.

A technique enabling simultaneous visualisation of skin and underlying bony structures in the walking horse was used to quantify skin displacements on the lateral surface of carpal, tarsal and fetlock joints. The technique employed implanted light-emitting-diodes (LEDs) for marking the bone, and self adhesive spot labels for marking the overlying skin. Photographic recordings were made. Skin displacement was measured in six Dutch Warmblood horses. Mean total displacements and mean displacement per degree of change of joint angle were calculated. Displacements at the level of the fetlock joints appeared to be generally small (less than or equal to 2 mm), but displacements up to 2 cm were measured in the distal tibia. Displacements of this magnitude are of importance for the interpretation of results obtained by modern gait analysis techniques.

Animals↗
PubMed1988

Clinical, radiographic, and scintigraphic findings associated with enthesitis of the lateral collateral ligaments of the tarsocrural joint in standardbred racehorses.

Injury of the lateral collateral ligaments of the tarsocrural joints was diagnosed in nine Standardbred pacers. The average age was 4.9 years. The severity of the lameness varied from severe to subtle and joint effusion was seen in eight of 10 tarsocrural joints. A positive hindlimb flexion test was seen in four of six cases in which results were recorded. The identification of the site of involvement was based on a focal intense 'hot spot' seen on scintigraphy, and new bone formation seen radiographically at the anatomical sites of insertion of the long lateral collateral ligament of the tarsocrural joint in nine limbs and the short lateral collateral ligament of one limb. The authors believe this injury to be enthesitis caused by the cyclic trauma of training and racing speed. The primary therapy was rest. Of six cases which returned to training, three raced as well or better than before injury.

Animals↗
PubMed1988

Bony fragments in the tarsocrural and metacarpo- or metatarsophalangeal joints in the standardbred horse--a radiographic survey.

Radiographic examination of the tarsocrural, metacarpo- or metatarsophalangeal joints was made in 139 Standardbred horses. Most were under three years old with no history of orthopaedic problems. In the tarsocrural joint, osteochondrosis was observed in 25 (18.1 percent) of the horses (n = 138) and 14 (56 percent) of these were affected bilaterally. In the metatarsophalangeal joint, the most frequent radiographic abnormality was single or multiple bony fragments or defects at the plantar proximal end of the proximal phalanx, which was noticed in 40 (28.8 percent) of the horses (n = 139). The lesion was much more frequent in the hind than in the forelimbs. Ten percent of horses affected in the hindlimbs had the lesions bilaterally. Palmar or plantar fragments wee also more common in the medial, than the lateral, part of the joint. With regard to osteochondrosis in the tarsocrural joint and palmar or plantar bony fragments in the metacarpo- or metatarsophalangeal joints, no significant differences in incidence were found between sexes or between left and right sides. There was no correlation between findings of osteochondrosis in the tarsocrural joints and the occurrence of bony fragments in the plantar part of the metatarsophalangeal joints. In the forelimbs, bony fragments in the dorsal parts of the metacarpophalangeal joint were noticed in three (2.9 percent) of the horse (n = 103) and the corresponding figure for the metatarsophalangeal joint was three (2.2 percent) (n = 139). In 102 horses, the tarsocrural, the metacarpo- and the metatarsophalangeal joints were radiographed at the same time. One or several joints were affected with osteochondrosis, bony fragments, or defects in underlying bones in 45 (44.1 percent) of these horses.

Animals↗