ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1988.tb00277.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

Two thousand sixty‐three surgical procedures were performed on 1992 patients (1715 dogs and 277 cats). In a retrospective analysis, the procedures were categorized according to the expected degree of wound contamination, and corresponding wound infection rates were determined. The number of procedures in each category and the percent that became infected were as follows: clean (1100, 2.5%), clean‐contaminated (554, 4.5%), contaminated (172, 5.8%), and dirty (237,18.1%). The administration of antibiotics significantly reduced the frequency of wound infection in clean surgical procedures performed by senior veterinary students (p<0.05), but not in clean elective procedures performed by faculty or resident surgeons that required 90 minutes or less to complete. There was a significant correlation between elevation of rectal temperature postoperatively and increased duration of the surgical procedure. However, the rectal temperature measured the day after surgery was not an accurate predictor of wound infect

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1988.tb00278.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

An anatomic analysis of retrograde and normograde intramedullary (IM) pinning of proximal, midshaft, and distal femoral fractures was performed in 28 canine cadavers. For all fracture locations, normograde pins were significantly more cranial in the middle gluteal muscle than retrograde pins (p<0.01). There was no significant difference between pinning techniques in craniocaudal position of the IM pin in the superficial gluteal muscle. In distal fractures, normograde pins were placed significantly more lateral than retrograde pins in the superficial gluteal muscle (p<0.01). One of 15 normograde pins and 9 of 13 retrograde pins were located in the medial half of the trochanteric fossa. Normograde pins were significantly more lateral in the trochanteric fossa than were retrograde pins in midshaft fractures (p<0.01). Normograde pins were significantly (p<0.01) farther from the sciatic nerve than retrograde pins when the hip was positioned at coxofemoral flexion angles of 85° in midshaft and 110° in distal fractures. Seven of 13 retrograde pins, but none of 15 normograde pins, contacted the sciatic nerve. Normograde pinning of the femur may be less likely to induce sciatic nerve injury, particularly in midshaft and distal fracture

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1988.tb00279.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

Four one quarter inch evenly spaced circular defects were created bilaterally in the lateral femoral diaphysis of 12 clinically normal adult dogs. The defects were left unfilled (control), or were filled with one of the following: (1) plaster of Paris, (2) an equal‐volume mixture of plaster of Paris and autogenous cancellous bone, and (3) autogenous cancellous bone. The degree of bone healing was evaluated radiographically and histologically at 2, 4, 6, 8, 10, and 12 weeks. Radiographically, no objective conclusions could be drawn due to the small size of the defects and limited amount of plaster of Paris implanted. Histologically, there was no inflammatory reaction to the plaster of Paris. No differences were determined in the degree of bone healing between autogenous cancellous bone, plaster of Paris, and a mixture of plaster of Paris and autogenous cancellous bone. All implants were superior to the control defect in degree of bone healin

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1988.tb00280.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

The average age of 122 horses with ascending colon volvulus was 6.6 ± 0.4 years. Gastric reflux was a presenting sign in 35% of the cases. Peritoneal fluid protein levels had a mean of 2.54 ± 0.14 g/dl and 20 horses had grossly normal peritoneal fluid at the time of presentation. Ascending colon volvulus was most commonly found at the level of the cecocolic fold with the initial ventral colon movement in a dorsomedial direction about the ascending mesocolic axis. The overall survival rate was 34.7% with a recurrence rate of only 4.9

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1988.tb00281.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

Seven horses, 2 to 4 years of age, were examined because of moderate‐to‐severe forelimb lameness, mild effusion of the middle carpal joint (3 horses), and pain on palpation of the origin of the suspensory ligament (4 horses). The lameness was abolished by anesthetic infiltration of the middle carpal joint in six horses. In four of them, a high palmar nerve block also abolished the lameness. A linear radiolucency in the proximal end of the third metacarpal bone (Mclll) was interpreted as an incomplete longitudinal fracture. In one horse, distinct intramedullary sclerosis limited to the palmar cortex was indicative of an incomplete fracture confined to the palmar cortex. No osteoproliferative lesions were identified on the dorsal cortex of any of the horses. Surgical treatment with cortical screws in lag fashion accompanied by a rest period was successful in one horse. In four horses, rest for at least 3 months resulted in clinical soundness. In two horses, a shorter rest period resulted in recurrence of the lameness even though the horses were sound when put back into training. Careful clinical and radiographic examinations helped differentiate incomplete longitudinal fractures from lesions involving the carpus and proximal aspect of the suspensory ligam

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1988.tb00282.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

A single large hepatic abscess in a 10 month old Holstein heifer was treated successfully by partial hepatic resection. No complications or recurrence of clinical signs have developed in the 9 months since the resection. Partial hepatic resection is an effective treatment of solitary bovine liver abscesses that warrants further investigation.

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1988.tb00283.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

Steady state and transient thermal techniques were used to define the thermal signatures of surgically sectioned and sham‐operated common calcanean tendons in four dogs. All limbs were imaged from the lateral side using an Inframetrics 525 system at –1,2,4,6, and 8 weeks after surgery. Individual video frames were used to compute absolute surface temperatures and rewarm curves for five predetermined 1 cm2skin areas. Angiography was performed at each observation period to correlate changes in vascular morphology and thermal data. Thermal signatures and angiograms were similar in all animals before surgery. At 2 and 4 weeks after surgery, the absolute surface temperatures of the entire lateral crus area were elevated in three of four animals. During weeks 6 and 8, the surface temperatures, rewarm curves, and angiograms returned to presurgical values for the controls. Skin areas over the repaired tendons remained warmer and were shown to correlate with vascular proliferation by transient but not steady state techniques. Steady state and transient thermal imaging techniques can be used to detect vascular changes in the area around a healing tendon. However, our data indicate that transient thermal techniques are more suitable than steady state methods for localizing vascular disturbances in tissues. Thermographic imaging techniques may become a reliable noninvasive method to monitor wound healing processes if starting temperatures, cool down techniques, and time intervals for data collection are fully evaluated in future studies using transient thermal imaging protoc

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1988.tb00284.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1988.tb00285.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

In humans, anesthetic uptake in a closed system with constant arterial concentration has been shown to be inversely proportional to the square root of time. A practical method for quantitative dosage of volatile anesthetic was derived from this. The method was evaluated in nine dogs anesthetized with a closed circle system using halothane and isoflurane. A unit dose (UD) of anesthetic was calculated in milliliters of vapor which was converted to milliliters of liquid and repeatedly administered into the expiratory limb between the squares of integer units of time (0–1, 1–4, 4–9 minutes, etc.). The UD was derived as follows: UD = 2 f MAC ×λB/G× 2 (kg)3/4, where f MAC was the desired alveolar concentration, λB/Gthe blood‐gas partition coefficient, and 2 (kg)3/4was an approximation of cardiac output. The method resulted in a stable plane of anesthesia and permitted continuous monitoring of O2consumption. There was no significant difference between predicted and measured values of O2consumption, cumulative doses, or alveolar concentrations at 9 and 16 minutes of

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1988.tb00286.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY