Biomedical subjects
Publications and source records attributed to D L Bone.
Chronic joint luxations may result from either traumatic injuries or congenital defects. Traumatic luxations are the most common and most amenable to surgical correction. Several surgical techniques for repair of hip, shoulder, and elbow luxations will be presented in this article.
Fifteen dogs were used to compare simple interrupted crushing and noncrushing single-layer small intestinal anastomoses. Groups of 5 dogs each were used to evaluate both techniques at 3 postsurgical times--days 4, 21, and 42. There were no significant differences between the 2 techniques at the evaluations. Grossly, there were marked adhesion formations at the 3 evaluation times. Luminal diameters at the anastomotic site indicated there may have been only slightly more stenosis with the noncrushing technique. Bursting pressure studies determined that the anastomotic strengths of the 2 techniques were not measurably different statistically. However, their bursting strengths had greatly increased from day 4 to day 21. There were also significant increases in bursting strengths of jejunal segments caudal to the anastomotic sites from day 4 to day 42. Subjective histopathologic evaluations of anastomotic sites revealed that the types and amounts of inflammation, collagen content, continuity of layers, and severity of peritonitis were not different within each time. It was concluded that both techniques for small intestinal anastomoses in the dog have equal value.
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Splenectomy was performed in 15 crossbred dogs; hilar vessel ligation was used in eight dogs (group 1) and splenic and short gastric artery ligation were used in seven (group 2). Blood flow to six sites along the greater and lesser curvatures of the stomach was recorded with radioactive tracer microspheres. A significantly higher blood flow was recorded in group 2 for the site supplied by the right gastroepiploic artery (p = 0.0441). There was no difference between the groups for the site supplied by the left gastroepiploic and short gastric arteries. Histologically, there was no difference in gastric tissue samples from four sites. Splenic and short gastric artery ligation did not compromise stomach blood flow or the integrity of the stomach wall, and may be superior for splenectomy because of its relative simplicity and potentially shorter operative time.