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Stabilization of atlantoaxial subluxation secondary to atlantooccipital malformation in a Devon calf
Atlantoaxial subluxation secondary to atlantooccipital malformation in a 14-day-old female Devon calf was corrected by alignment and stabilization of the atlantoaxial joint. Stabilization was achieved by the ventral placement of pins and screws, and the dorsal placement of a figure 8 tension band wire. At 2 and 14 days post operatively, adequate alignment of the atlantoaxial joint was confirmed radiographically. Following surgery the calf improved clinically, but was terminated 14 days following the surgery due to a pneumonia. At necropsy the fixation was stable and spinal cord decompression had been achieved. It was concluded that this technique could be utilized to allow decompression, anatomical alignment, and stabilization of an atlantoaxial subluxation secondary to atlantooccipital malformation in a calf. At necropsy, there was gross and histologic evidence of congenital fusion of the basioccipital bone to the malformed atlas. 相似文献
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Bilateral sacroiliac fracture-luxations in four dogs and four cats weighing 3.5 kg to 30.9 kg were reduced and stabilized with a single 3.5 mm, 4.5 mm, or 6.5 mm transsacral screw. Alignment of the drill bit was visual in six cases and assisted by the use of an aiming device in two cases. Seven animals were reevaluated at months 3 to 6. No significant screw loosening or loss of reduction had occurred. Although no intraoperative complications were encountered with visual drill bit alignment, use of an aiming device for transsacral drilling is strongly recommended. 相似文献
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A Salter-Harris type-II fracture of the proximal portion of the right femur in a 2-month-old filly was reduced and stabilized with three 6.5-mm-diameter, 100-mm-long cancellous bone screws through a dorsal approach to the right coxofemoral joint. The screws were removed after 11 months because the filly became lame in the affected limb. The surgical wounds dehisced despite preventive measures, most likely because of tightness of skin in the coxal region. Seven years after the original injury, the horse could perform vigorous paddock exercise without any disability. Early internal fixation of proximal femoral physeal fractures in foals can provide a good long-term prognosis. 相似文献
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Activity of Salmonella-specific dialyzable leukocyte extracts (DLE) prepared from mesenteric lymphatic nodes of calves and stabilized with bovine albumin was studied in this work. The effect of ambient temperature and storage period on the activity of DLE was evaluated. Testing for DLE activity by means of capillary leukocyte migration inhibition (LMI) assay showed that DLE stabilized with albumin retained 60% of its activity for 12 months of storage at 4 degrees C. This level of activity was retained in the native DLE (without albumin) kept at -20 degrees C. DLE stabilized with albumin and stored for 12 months at 4 degrees C inhibited the penetration of salmonellae into the liver and spleen, and their colonization in the gastrointestinal tract was significantly reduced. 相似文献
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PAMELA C. WAGNER M.S. D.V.M. GEORGE W. BAGBY M.D. § BARRIE D. GRANT D.V.M. M.S. ANTHONY GALLINA D.V.M. PH.D. † MARC RATZLAFF D.V.M. PH.D. ‡ RON SANDE D.V.M. PH.D. 《Veterinary surgery : VS》1979,8(1):7-12
The Cloward technique for intervertebral fusion was utilized on 12 horses ranging from 3 months to 2 years of age. Of the 12 horses, 9 had been diagnosed as having equine cervical vertebral malformation (CVM) or "wobbles," and 3 were normal controls. A large hole was drilled from the ventral border of the vertebral bodies spanning the intervertebral disc and the vertebral end plates of the 2 articulating vertebrae. Frozen homologous bone dowels of slightly larger diameter from equine cadaver ilia were inserted in the holes. No adverse postoperative complication arose. Clinical improvement was seen in all horses with CVM. Three months postoperatively, partial or complete fusion was evident radiographically in 11 of the 12 horses. Necropsies were performed 3–6 months postoperatively to evaluate the quality of the fusion. Cadaver manipulation demonstrated reduced intervertebral movement at the operative site in all cases. The articulations of the equine cervical spine can be operatively fused by the Cloward technique, and surgically induced trauma is minimal. This technique can be used for stabilizing subluxations and may be applicable for treating fractures and osteolytic processes that have weakened vertebrae. 相似文献
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米糠是稻谷加工过程中产生的富含营养物质的廉价副产品,是糙米精制过程中所脱果皮、种皮层及胚芽等的混合物。虽然米糠具有营养物质丰富、分布广、价格低廉等优点,但是米糠在饲料中的应用还未得到充分发挥。限制米糠广泛应用的原因主要是由于米糠中存在抗营养因子,尤其是内源脂肪酶和过氧化物酶,这些酶能够迅速氧化碾米过程中所释放的脂肪和油类,使油脂开始变质并水解出游离脂肪酸,出现难闻气味,贮藏稳定性降低(朱文华等,2001)。此外,米糠中还含有胰蛋白酶-糜蛋白酶抑制因子、血凝素、植酸等抗营养因子和不可消化物质(Khan,2004)。因此,米… 相似文献
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The stability of hog cholera virus through five freeze-thaw cycles in the presence and absence of dimethyl sulfoxide was studied. In the absence of dimethyl sulfoxide the hog cholera virus titer was reduced 52% to 91% following successive freezing and thawing cycles. However, when dimethyl sulfoxide was added to the viral suspension the virus titer appeared to remain the same after the same number of freezing and thawing cycles. 相似文献
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夏季稳定蛋鸡生产性能的营养学措施 总被引：3，自引：0，他引：3
环境温度影响蛋鸡生产性能。大量试验证实，高温引起家禽采食降低，产蛋率下降、蛋壳质量变劣、死亡率明显升高。高温季节，除采取积极的饲养管理措施外，可通过调整饲粮营养水平、添加抗应激添加剂等营养学措施减轻应激带来的损失。 相似文献
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KEVIN A. R. KUNKEL DVM R. RANDY BASINGER DVM DIPLOMATE ACVS JONATHAN T. SUBER DVM PATRICK D. GERARD PhD 《Veterinary surgery : VS》2009,38(8):975-982
Objective— To evaluate use of a transcondylar toggle system (TCTS) for stabilization of the cranial cruciate ligament (CrCL) deficient stifle in small dogs and cats. Study Design— Prospective clinical study. Animals— Small dogs (<7 kg; n=14) and cats (2) with CrCL‐associated lameness of <3 months duration and a tibial plateau angle <32°. Methods— Affected animals had an extracapsular CrCL repair using the TCTS. Lameness score, muscle atrophy, osteoarthritis (OA) score, and range of motion (ROM) were evaluated preoperatively, and at 6 weeks and 7–10 months postoperatively. Results— Operative time was 75 ± 16 minutes. Fifty‐six percent required >1 bone tunnel attempts. One dog required revision at 2 weeks because of suture loosening. All stifles were stable at 6 weeks postoperatively. Fifteen animals were available for follow‐up (7–10 months). Lameness improved significantly at 6 weeks (P<.0001), whereas muscle atrophy was worse at 6 weeks (P=.008) but improved at 7–10 months (P<.0001). OA scores were unchanged at 6 weeks (P=.08) but were significantly worse at 7–10 months (P<.0001). ROM remained unchanged at 6 weeks (P=1) and 7–10 months (P=.6). Conclusions— The medially placed toggle provides a reliable short‐term proximal anchor for the extracapsular suture with outcomes similar to other extracapsular techniques. The aiming device and drill bit are not recommended in their current form. Clinical Relevance— The TCTS appears to be a well‐tolerated technique for proximal suture anchoring in extracapsular CrCL repair in small dogs and cats where instrumentation and anatomic constraints preclude other techniques. 相似文献
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