ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1992.tb00020.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

A zonal analysis system and corresponding nomenclature were developed to describe the location and nature of radiographic changes in canine uncemented total hip arthroplasties. Criteria to assess prosthetic component alignment, percentage of femoral canal fill, resorptive and formative bony changes, and alterations in the bone at the implant‐bone interface were derived by studying serial radiographs of 100 consecutive canine uncemented total hip arthroplasties for up to 30 months after surger

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1992.tb00021.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1992.tb00022.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

Eighteen intact canine cadaver radii underwent nondestructive axial testing, and were osteotomized, plated, and retested. Each bone was tested with and without mediolateral or craniocaudal restriction of motion. Fixation of the osteotomies was performed under static compression with a cranially applied 5‐hole 3.5 mm dynamic compression plate, a cranially applied 7‐hole 3.5 mm T‐plate, or a medially applied 7‐hole 2.7 mm dynamic compression plate. There was no loss of axial stiffness after osteotomy and fixation, and there were no differences in axial stiffness between the methods of fixation. Mediolateral stiffness (bending around the craniocaudal axis) was consistently greater than craniocaudal stiffness (bending around the mediolateral axis) before and after osteotomy and plate fixation. There was no difference in the axial stiffness of otherwise intact radii when craniocaudal or mediolateral screw holes were drilled; however, all radii with craniocaudal screw holes and one radius with mediolateral screw holes fractured at a screw hole at high axia

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1992.tb00023.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1992.tb00024.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

Four chlorhexidine diacetate (CHD) antiseptic wound lavage preparations were evaluatedin vivoto determine their effects on second intention wound healing in the dog andin vitroto determine their relative antibacterial activity againstStaphylococcus intermedius.Chlorhexidine was diluted to 0.05% in sterile water, 0.9% sodium chloride, lactated Ringers solution (LRS), and LRS that was allowed to form a precipitate with CHD. Control solutions included sterile water and LRS. There were no significant differences in wound contraction or epithelialization. Ail 0.05% CHD preparations provided 100% bacterial kill.

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1992.tb00025.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1992.tb00026.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

Gastric dilatation‐volvulus (GDV) was created experimentally and maintained for 90 minutes in 16 anesthetized, mixed‐breed dogs. After the GDV was corrected, normal saline solution (0.044 mL/kg intravenously [IV]) was administered to eight dogs (controls), and flunixin meglumine (2.2 mg/kg IV) was administered to eight dogs. Microspheres labeled with radioactive cobalt, scandium, tin, or niobium were injected intravenously at baseline (before GDV) and minutes 90, 100, and 270, respectively, to determine tissue blood flows. Plasma endotoxin and prostacyclin were measured at the same intervals.Electrocardiogram, mean arterial pressure, portal pressure, and cardiac output were recorded continuously. Dogs were euthanatized at minute 270 and necropsied. There was no significant difference between treatment groups for any measured variable at any time. Endotoxin levels increased significantly during GDV. Prostacyclin levels were lower in dogs treated with flunixin meglumine than in controls at minutes 210 and 270.Histopathologic findings were similar for all dogs and consistent with those associated with endotoxemia. Flunixin meglumine treatment did not alter cardiac indices or tissue blood flows significantly. However, elevation of prostacyclin was inhibited by flunixin meglumine, which suggested that continued effects of endotoxic damage might be attenuated or inhibi

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1992.tb00027.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

Mechanical properties of equine suspensory apparatus preparations and three braided synthetic prostheses were evaluatedin vitro.Force versus displacement plots and failure modes were recorded from single load‐to‐failure testing in 18 cadaver limbs before and after replacement of each suspensory apparatus with a prosthesis. Mean load at failure, energy to failure, and stiffness values of polytetrafluoroethylene (PTFE) prostheses were lower than those of the suspensory apparatus and aramid prosthesis. The PTFE prosthesis failed by elongation or rupture of the prosthesis. Mechanical properties of the aramid prosthesis with collar augmentation were not significantly different from the suspensory apparatus. The main site of failure in both aramid prostheses was at the screw fixation to b

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1992.tb00028.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

ISSN:0161-3499    

DOI:10.1111/j.1532-950X.1992.tb00029.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY