Risk Factors for Tibial Tuberosity Fracture after Tibial Plateau Leveling Osteotomy in Dogs     

RANDY J. BOUDRIEAU dvm  Diplomate acvs & ecvs  MICHAEL P. KOWALESKI  Diplomate acvs   《Veterinary surgery : VS》2009,38(3):426-426

  相似文献   

STATISTICAL BRIEFING: SOME USEFUL WEBSITES FOR CLINICAL STATISTICS     

CHRISTOPHER R. LAMB 《Veterinary radiology & ultrasound》2009,50(6):684-684

  相似文献   

IMAGING DIAGNOSIS—NECROTIZING MENINGOMYELITIS AND POLYARTHRITIS     

ANDREW T. PARRY  VICTORIA A. PENNING  KEN C. SMITH  PATRICK J. KENNY  CHRISTOPHER R. LAMB 《Veterinary radiology & ultrasound》2009,50(4):412-415

A vaccinated 2-year-old female neutered Weimaraner had bilateral pelvic limb ataxia that progressed over 12 h. The dog became nonambulatory, with signs of pain on palpation of the lumbar spine. The dog also developed multiple joint effusions. On magnetic resonance (MR) imaging, there was a diffuse, asymmetric T2-hyperintensity in the thoracolumbar spinal cord which was characterized by contrast enhancement. Lumbar cerebrospinal fluid (CSF) analysis had an elevated white blood cell count and protein. On the basis of MR images and CSF analysis, a presumptive diagnosis of diffuse myelitis was made. The dog became paraplegic and was euthanized. Postmortem examination confirmed the presence of myelitis with vasculitis and nonerosive polyarthritis.  相似文献   

STATISTICAL BRIEFING: STATISTICAL POWER     

CHRISTOPHER R. LAMB 《Veterinary radiology & ultrasound》2009,50(3):336-336

  相似文献   

Congenital Interruption of the Portal Vein and Caudal Vena Cava in Dogs: Six Case Reports and a Review of the Literature   总被引：1，自引：0，他引：1  

GERALDINE B. HUNT BVSc  PhD  FACVSc    CHRISTOPHER R. BELLENGER BVSc  PhD  FACVSc    RICHARD BORG  K. RUTH YOUMANS BVSc  MACVSc    PENELOPE L.C. TISDALL BVSc  RICHARD MALIK BVSc  PhD  FACVSc 《Veterinary surgery : VS》1998,27(3):203-215

Objective —To describe six dogs with congenital abnormalities involving the portal vein, caudal vena cava, or both.
Animals —Six client-owned dogs with congenital interruption of the portal vein or the caudal vena cava, or both.
Methods —Portal vein and caudal vena cava anatomy was evaluated by contrast radiography and visualization at surgery. Vascular casts or plastinated specimens were obtained in three animals.
Results —Portal blood shunted into the caudal vena cava in four dogs and the left hepatic vein in one. Two of these five dogs also had interruption of the caudal vena cava with continuation as azygous vein, as did an additional dog, in which the portal vein was normally formed. Portal vein interruption was present in 5 of 74 (6.8%) dogs with congenital portosystemic shunts evaluated at the Veterinary Teaching Hospital during the study period.
Conclusions —Serious malformations of the abdominal veins were present in more than 1 in 20 dogs with single congenital portosystemic shunts.
Clinical Relevance —Veterinarians involved in diagnosis and surgery for portosystemic shunts should be aware of these potential malformations, and portal vein continuity should be evaluated in all dogs before attempting shunt attenuation.  相似文献   

Removal of Five Canine Cardiac Tumors Using a Stapling Instrument   总被引：1，自引：0，他引：1  

PEGGY M. WYKES dvm  ms  GLEN P. ROUSE dvm  E. CHRISTOPHER ORTON dvm  ms 《Veterinary surgery : VS》1986,15(1):103-106

Cardiac tumors in five dogs, including four right atrial appendage hemangiosarcomas and one heartbase chemodectoma, were removed, and the excisional edges were closed with a thoracic-abdominal (TA) stapling instrument. All five dogs recovered from surgery and were discharged from the hospital within 4 days. The four dogs with atrial appendage hemangiosarcomas developed extensive metastasis, although no evidence of tumor recurrence was found at the surgical site in two dogs that were necropsied. The dog with a chemodectoma was alive with no clinical or radiographic evidence of recurrence or metastasis 17 months following surgery.  相似文献   

Endoscopic Examination and Treatment of Paranasal Sinus Disease in 16 Horses   总被引：2，自引：0，他引：2  

ALAN J. RUGGLES DVM  Diplomate ACVS    MICHAEL W. ROSS dvm  Diplomate ACVS  DAVID E. FREEMAN MVB  PhD  Diplomate ACVS 《Veterinary surgery : VS》1993,22(6):508-514

Sixteen horses with suspected paranasal sinus disease had endoscopic examination of the paranasal sinuses with a 4.0 mm arthroscope either while standing and sedated (14 horses) or under general anesthesia (two horses). Endoscopic diagnosis included sinusitis (four horses), sinus cyst (three horses), hemorrhage (three horses), neoplasia (three horses), and tooth root abnormalities (two horses). No abnormalities were detected in one horse. Endoscopic findings concurred with the radiographic findings in 13 horses (81%). Samples of sinus contents for bacteriologic (eight horses) and histologic examinations (five horses) were obtained using sinus endoscopy. Diagnostic sinus endoscopy was combined with debridement, lavage, and suction as a therapeutic technique in 10 horses. In three horses, sinus exploration was performed after diagnostic endoscopy confirmed sinus disease, whereas in three horses, further therapy was not recommended after sinus endoscopy. Clinical signs of sinus disease resolved in 11 horses (69%) overall and in eight of 10 horses (80%) with sinusitis, cyst formation, or hemorrhage using endoscopic techniques alone. Mild, local subcutaneous emphysema occurred at the portal sites in all horses, but healing occurred without additional complications, latrogenic damage to sinus structures occurred in one horse. Sinus endoscopy was useful in the diagnosis and management of paranasal sinus disease and avoided the need for exploratory sinusotomy in some horses.  相似文献   

Bacterial Isolates from Blood Cultures of Dogs Undergoing Dentistry     

JOSEPH HARARI MS  dvm  dipiomate acvs  THOMAS E. BESSER dvm  phd  diplomate acvm  SCOTT B. GUSTAFSON dvm  ms  dipiomate acvs  KATRINA MEINKOTH dvm 《Veterinary surgery : VS》1993,22(1):27-30

Bacteria in blood cultures in 30 dogs undergoing high-speed dental scaling and tooth extraction were examined. One or more positive blood cultures were identified in 9 of 30 (30%) dogs. Pasteurella spp. were most frequently (5 dogs) isolated and were sensitive to ampicillin, penicillin, cephalothin, chloramphenicol, tetracycline, amoxicillin with clavulanic acid, and sul-famethoxazole with trimethoprim. Twg groups of 15 dogs each, anesthetized or sedated but not undergoing dental procedures, served as non-dentistry controls. There were no significant (p < .05) differences between the number of positive cultures in dentistry and non-dentistry groups. In healthy dogs undergoing high-speed dental scaling and tooth extraction, the occurrence of bacteria in blood cultures was much lower than previously reported. The clinical significance of positive blood cultures was uncertain.  相似文献   

Effect of Fixation Pin Insertion on the Bone-Pin Interface     

ERICK L. EGGER dvm  Dipiomateavcs  MICHAEL B. HISTAND ms  PhD  CHARLES E. BLASS dvm  ms. BARBARA E. POWERS dvm  ms 《Veterinary surgery : VS》1986,15(3):246-252

Smooth and partially threaded 3.12 mm (1/8 inch) trochar-tipped Steinmann pins were inserted transversely through both diaphyseal cortices of eight mature canine tibias using five methods. Angular velocity (revolutions per minute) during insertion and temperature elevation due to friction during penetration of the second cortex were recorded. The force required for extraction of the pins from the bone and the histologic appearance of the bone-pin interface were determined for one-half of the pins 2 days after insertion and for one-half of the pins 56 days after insertion. The increase in temperature was similar for all methods of insertion except high speed power, which was significantly greater (p < 0.05). The force required for axial pin extraction was similar for pins inserted by hand chuck, predrilled, and low speed power methods after both 2 and 56 days. Pins inserted by high speed power and hand drill required force similar to the others for extraction after 2 days but significantly less force (p < 0.05) for extraction after 56 days. The partially threaded pins required significantly greater force (p < 0.01) extraction after both 2 and 56 days. Histologic examination revealed increased mechanical bone damage surrounding hand chuck inserted pins, increased bone necrosis surrounding high speed power inserted pins, and increased inflammatory changes surrounding hand drill inserted pins.  相似文献   

Cryosurgical Epiphysiodesis in the Dog     

B. A. KRAMEK dvm  L. J. WALLACE dvm  ms  Dipiomateacvs  J. A. DOWDLE md  D. M. BARNES dvm  PhD  Diplomateacvp 《Veterinary surgery : VS》1986,15(1):79-84

Transphyseal freezing of the canine distal femur was evaluated to determine its effect on physeal growth and closure. A specially designed cryoprobe was used to freeze the distal right femoral physis in 17 immature dogs. The left distal femoral physis was sham operated to serve as a control. Dogs were radiographed weekly and euthanized from 2 days to 8 weeks following surgery. The rate of long bone growth decreased in all dogs, and the physis was closed at 6 to 8 weeks.
Histologic studies on the distal femoral physes revealed that immediately after freezing, there was extensive hemorrhage in the epiphysis and metaphysis with disruption of the physis. Inflammation and death of the physeal cartilage followed. Blood vessels invaded the physis, and eventually bone was formed between the epiphysis and metaphysis, resulting in complete and premature physeal closure.  相似文献