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CATHERINE A. TONKS DVM JAMES L. TOMLINSON DVM MVSci Diplomate ACVS JAMES L. COOK DVM PhD Diplomate ACVS 《Veterinary surgery : VS》2008,37(7):603-607
Objective— To evaluate outcome by radiographic assessment after closed reduction and percutaneous screw fixation in lag fashion of sacroiliac fracture‐luxations in dogs. Study Design— Retrospective study. Animals— Dogs (n=24) with sacroiliac fracture‐luxations. Methods— Medical records (1999–2006) and radiographs of 24 dogs (29 fracture‐luxations) that had stabilization of sacroiliac fracture‐luxation by fluoroscopic‐guided closed reduction and percutaneous screw fixation in lag fashion were reviewed. Signalment, body weight, number, and location of all concurrent injuries and implants used for repair were recorded. Radiographs were used to evaluate the accuracy of screw placement in the sacral body, screw depth/sacral width ratio, reduction of the sacroiliac joint, pelvic canal diameter, and hemipelvic canal width. Radiographic re‐examination (range, 4 to >8 weeks postoperatively) was available for evaluation. Results— Mean screw depth/sacral width ratio on immediate postoperative and re‐examination radiographs was 64% and 61%, respectively. Mean percentage reduction of the sacroiliac joint on immediate postoperative and re‐examination radiographs were 91% and 87%, respectively. Pelvic canal diameter ratio demonstrated successful restoration of the pelvic canal. Hemipelvic canal width ratio documented successful closed reduction repair independent of concurrent pelvic injuries. Conclusion— Successful repair of sacroiliac fracture‐luxations, determined by radiographic assessment, can be achieved by fluoroscopic‐guided closed reduction and percutaneous screw fixation in lag fashion. Clinical Relevance— Fluoroscopic‐guided closed reduction and percutaneous screw fixation in lag fashion of sacroiliac fracture‐luxations is a minimally invasive technique that restores and maintains pelvic canal dimensions and should be considered as an alternative to open reduction or nonsurgical management of sacroiliac fracture‐luxations. 相似文献
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ANERGY TO TUBERCULIN IN BEEF CATTLE 总被引：3，自引：0，他引：3
A. W. D. LEPPER B. Vet. Med. M. R. C. V. S. Ph.D. M. A. C. V. Sc. CATHERINE W. PEARSON B. Sc. L. A. CORNER B. V. Sc. 《Australian veterinary journal》1977,53(5):214-216
SUMMARY Various aspects associated with anergy to tuberculin were investigated in a total of 78 tuberculous cattle. Forty-six (59%) had single lesions and 32 (41%) had multiple lesions. Forty-three (55.1%) had lesions in the lungs or associated lymph nodes and 23 (29.5%) showed multiple involvement of these tissues. Nine anergic cattle had generalised tuberculosis. Histological examination of lesions from 38 animals showed that the majority were of the progressive type. 相似文献
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CATHERINE W. PEARSON B.Sc. L. A. CORNER B.V.Sc. A. W. D. LEPPER B.Vet.Med. M.R.C.V.S. 《Australian veterinary journal》1977,53(2):67-71
Each of 12 cattle was inoculated either subcutaneously and intradermally or into a mesenteric lymph node with 1 of 8 species of live atypical mycobacteria isolated from cattle, cattle trough water and feral pigs. Seventy-eight days after inoculation the cattle were tuberculin tested with bovine PPD, avian PPD and homologous heat-concentrated syntheic medium tuberculins. They were killed 85 days after inoculation. Organisms were cultured from caseous granu-lomas at all sites in cattle inoculated with M. avium serotype 2. M. simiae was recovered from a granuloma at the subcutaneous site. Acid-fast bacilli were isolated from the mesenteric lymph node inoculated with trough water organisms. At 72 h, all the cattle had produced skin reactions of 4 mm or more to the homologous tuberculins and all except 1 produced a similar response to avian PPD. Only isolates of bovine origin sensitised cattle to bovine PPD to this degree, and these reactions were less than the corresponding response to avian PPD. 相似文献
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The potential of botanical essential oils for insect pest control 总被引：11，自引：0，他引：11
CATHERINE REGNAULT-ROGER 《Integrated Pest Management Reviews》1997,2(1):25-34
Today,Insect Pest management (IPM) has to face up to the economic andecological consequences of the use of pest control measures.Fifty years of sustained struggle against harmful insects usingsynthetic and oil-derivative molecules has produced perversesecondary effects (mammalian toxicity, insect resistance andecological hazards). The diversification of the approachesinherent in IPM is necessary for better environmental protection.Among the alternative strategies, the use of plants, insecticidal allelochemicals appears to be promising. Aromatic plants, and their essential oils, are among the most efficient botanicals. Their activities are manifold. They induce fumigant and topical toxicity as well as antifeedant or repellent effects. They are toxic to adults but also inhibit reproduction. Although mechanisms depend on phytochemical patterns and are not yet well known, this widespread range of activities is more and more being considered for both industrial and household uses: essential oils are presently regarded as a new class of ecological products for controlling insect pests 相似文献
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ABSTRACT Nongovernmental organizations frequently receive donations of land that have unknown characteristics. This paper presents an analytical model of the option to preserve such land. The nongovernmental organizations' option value arises from the option to preserve or sell the land to generate funds for other preservation projects. We show that die preservation option is equivalent to an option that allows the nongovernmental organization to choose between he maximum of the market value of the land and the preservation value of the land. From the resulting closed from solution of the option to preserve, we perform comparative statics showing how the relevant factors (preservation value of the land, the development value of the land, the length of the that the option is available, and the uncertainty surrounding the relative values of preservation and development) influence the value of the preservation option. In addition, to the basic model, we present three model modifications. The first examines the effects of costly preservation and costly nonpreservation. In the second extension, we examine the effects of freeriding modeled by a continuous variable. In the final modification, we relax the assumption of the fixed survey period and show the optimal development date. 相似文献
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Colopexy as a Treatment for Rectal Prolapse in Dogs and Cats: A Retrospective Study of 14 Cases 总被引：1，自引：0，他引：1
CATHERINE A. POPOVITCH dvm DAVID HOLT BVSc Diplomate ACVS RON BRIGHT DVM MS Diplomate ACVS 《Veterinary surgery : VS》1994,23(2):115-118
Colopexy was evaluated as a treatment for recurrent rectal prolapse in eight dogs and six cats. Cases included in the study were from two institutions; the University of Pennsylvania School of Veterinary Medicine and the University of Tennessee College of Veterinary Medicine. Two different colopexy techniques were used: A simple suture technique was used in two cats and four dogs (University of Pennsylvania), and an incisional technique was used in four cats and four dogs (University of Tennessee). Rectal prolapse had not recurred in any of the 14 animals at the time of follow-up. Incisional dehiscence occurred in two animals and in one instance may have been related to the colopexy procedure. Infection at the colopexy site, secondary to suture penetration of the colonic lumen, is a potential complication of this procedure. Colopexy, using either surgical technique described here, was effective in preventing recurrent rectal prolapse. 相似文献
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A. C. PALMER VANDA A. LENNON CATHERINE BEADLE† J. V. GOODYEAR‡ 《The Journal of small animal practice》1980,21(6):359-364
A case of juvenile onset myasthenia gravis is described in a Yorkshire Terrier x Jack Russell bitch in which there were serum autoantibodies to acetylcholine receptors and reduction in the muscle's content of acetylcholine receptors. Approximately 25% of the receptors remaining were complexed with antibody. After 8 months of treatment with the anticholinesterase pyridostigmin, the animal made a complete recovery and the serum level of antibody decreased. The condition of this dog in many respects resembled acquired myasthenia gravis of adult onset and is contrasted with the seven cases of congenital myasthenia gravis which we have studied in the Jack Russell Terrier. In the congenital form of myasthenia gravis, reduction of acetylcholine receptors in muscle is found without any demonstrable autoantibodies to acetylcholine receptors, either in serum or muscle. 相似文献
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CATHERINE VAUDAUX UWE SCHNEIDER BARBARA KASER-HOTZ 《Veterinary radiology & ultrasound》2007,48(5):475-481
We evaluated the impact of inverse planned intensity-modulated radiation therapy (IMRT) on the dose-volume histograms (DVHs) and on the normal tissue complication probabilities (NTCPs) of brain and eyes in dogs with nasal tumors. Nine dogs with large, caudally located nasal tumors were planned using conventional techniques and inverse planned IMRT for a total prescribed dose of 52.5 Gy in 3.5 Gy fractions. The equivalent uniform dose for brain and eyes was calculated to estimate the normal tissue complication probability (NTCP) of these organs. The NTCP values as well as the DVHs were used to compare the treatment plans. The dose distribution in IMRT plans was more conformal than in conventional plans. The average dose delivered to one-third of the brain was 10 Gy lower with the IMRT plan compared with conventional planning. The mean partial brain volume receiving 43.6 Gy or more was reduced by 25.6% with IMRT. As a consequence, the NTCPs were also significantly lower in the IMRT plans. The mean NTCP of brain was two times lower and at least one eye could be saved in all patients planed with IMRT. Another possibility with IMRT is dose escalation in the target to improve tumor control while keeping the NTCPs at the same level as for conventional planning. Veterinary 相似文献
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