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An association between fecal carriage of Streptococcus bovis and colorectal carcinoma has been reported. A relationship between S. bovis and colorectal adenomas has also been suggested. In the present study, the relationship between S. bovis and adenomas was investigated. Two of 18 current adenoma patients (11%) were found to have S. bovis in their stool(More)
Plasma gastrin has been reported to be elevated among patients with colorectal cancer. The objectives of the present study were to confirm this observation and, if confirmed, to shed light on the reason for the elevation. Presurgical and postsurgical fasting plasma gastrin levels were compared between 24 patients hospitalized for colorectal adenocarcinoma(More)
To evaluate a carbon fiber/polysulfone composite femoral stem, a press-fit unilateral hemiarthroplasty was performed in 17 greyhounds. The implant was designed to have strength and elastic properties commensurate with the proximal canine femur. The implant geometry was such that the naturally occurring internal cancellous structures of the proximal femur(More)
A mechanical and histological evaluation of LTI pyrolytic carbon implants was undertaken to determine the effect of various surface treatments on the retention characteristics of the implants. Five types of surfaces were evaluated, including as-deposited, fine grit-blasted, coarse grit-blasted, ground, and plasma oxygenated. The four surface treatments were(More)
Orthopaedic internal fracture fixation plates are subjected to combined axial, bending, and torsional loads in vivo which can cause screw loosening and implant failure. This paper outlines a relatively simple technique which allows controlled application of combined axial, bending, and torsional loading to examine the loosening rate of cortical screws used(More)
The creation of various curves in bendable metallic rods remains difficult. We describe a simple instrument that uses two bending levers to provide the mechanical advantage required to easily shape up to 5.5 mm diameter bendable metallic rods with precision, control, and minimal nicking or scratching of the metal surface. We have successfully used this tool(More)
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