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D Ayres

Publications and source records attributed to D Ayres.

9 recordsLinked to original sources

Bilobed oblong porous coated acetabular components in revision total hip arthroplasty.

Thirty-eight oblong bilobed noncustom uncemented, porous-coated titanium acetabular components were used to reconstruct failed hip arthroplasties with large superior segmental acetabular bone deficiencies. No structural bone grafts were used. All patients were followed up for 2 to 5 years (mean, 3 years) after the operation. One patient (whose socket rested primarily on a structural bone graft from a previous procedure) had revision surgery for acetabular loosening. No other patients have had revision surgery or had another ipsilateral hip operation. At latest followup, 35 patients had no or mild pain and two patients had moderate pain. Two implants migrated more than 2 mm in the first year, then stabilized. On the latest radiographs, two implants had bead shedding, but there was no measurable migration or change in position. For selected patients with large superolateral acetabular bone deficiencies, this implant facilitated a complex reconstruction, provided good clinical results, and showed satisfactory stability at early to midterm followup in most patients.

Acetabulum↗

Mobile medical clinics offer alternative to renovation and construction.

Mobile Health Care Programs have many attributes. Every organization genuinely concerned with client access to their services should consider having one. When the need to service outlying areas arises, a mobile clinic offers more flexibility and is the most economically feasible alternative. Granted, there is no shortage of vacant structures for rent or purchase in rural America. That, of course, is just the start; you also have the expense of renovating the interior to accommodate the patients and staff. And do not forget the four P's: Planners, Permits, Politics and Payola (taxes and fees).

Ambulatory Care↗

Occurrence of domoic acid in Washington state razor clams (Siliqua patula) during 1991-1993.

The presence of domoic acid in aquatic species was reported for the first time in the United States in the late summer of 1991 in Monterey Bay, California. By October of 1991, domoic acid was found in razor clams (Siliqua patula) and in the viscera of Dungeness crab (Cancer magister) along the coasts of Washington and Oregon. In response to this outbreak, the National Marine Fisheries Service, in cooperation with the Washington State Department of Fisheries began analysis of Washington State razor clams for the period from November 1991 to June 1993. This survey indicated that domoic acid levels in the edible portion of the razor clams peaked in December of 1991 (average of all Washington state coastal sites: 106 ppm) and followed a slow decline to the present day low levels (< 5 ppm). Sixteen months after the maximum level, domoic acid has not completely disappeared from the razor clams from the Washington State beaches. Unlike mussels (Mytilus edulis), where the toxin is found only in the viscera, domoic acid distributes itself throughout the various body parts of the razor clam. The highest concentration occurs in the foot or "digger" and the lowest in the siphon or "neck." The concentration of domoic acid in the razor clam foot reached a high of 230 ppm.

Animals↗

Achieving change and altering behaviour through direct doctor use of a hospital information system for order communications.

Direct use of hospital information systems, and particularly of order communications systems by doctors, is central to the anticipated benefits from hospital information systems in Australia and other countries. There is an expectation that doctors will accept this technology and that the benefits will flow from their use. Concord Repatriation General Hospital in Sydney is one of very few hospitals in the world where doctors directly use a hospital information system to access patient information, place orders for diagnostic services and retrieve results. This paper reports on research which explored the nature of the direct doctor use of the hospital information system at Concord Hospital, and the changing attitudes of the doctors there.

Attitude to Computers↗

Innovation as hospital culture: a trial and demonstration facility in an acute-care hospital ward.

This short communication describes the establishment of a trial and demonstration facility for new products, technologies, methods and procedures in an acute-care hospital ward at Concord Hospital in Sydney, Australia. The importance of innovation for all businesses, including hospitals, is discussed; and, why a project like the Model Ward can promote innovation as part of the corporate culture. The Model Ward development, implementation and its benefits are reported on and discussed.

Australia↗