M I T Steve Ellis

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The effects of advancement of the tibial tuberosity by inserting bony wedges was studied on cadaveric specimens of the knee. The geometry, the contact areas and the forces acting on the patellofemoral joint were investigated, and the forces acting on the tibiofemoral compartment were calculated. A 1 cm advancement was found to be optimal in reducing the(More)
A previous study indicated the need for patients with arthritis to have an armchair from which it is easy to rise. To determine criteria for such a chair a greater understanding of the rising activity and the objective assessment of chair design is required. The major muscle groups of the leg were monitored by electromyography (EMG) in normal subjects and(More)
Groups such as the arthritic and the elderly are particularly susceptible to seating problems. An extensive questionnaire to determine the nature and extent seating difficulties was given to patients at rheumatology clinics and members of day centres for the elderly in Leeds. Forty-two per cent of subjects had some degree of difficulty in rising from their(More)
Knee joint forces were determined by kinesiological techniques, using a high speed cine camera, a force platform, a specially constructed dynamometerized chair, and EMG recorders; so that a comparison could be made for rising from a normal chair with and without the aid of arms, and for rising from high and low chairs. For rising from the seated position,(More)
BACKGROUND Pneumonia is a common respiratory disease, which has a mortality rate of approximately 14% worldwide. The management of pneumonia is based on the patient and microbiological profile existing in the community. There is a paucity of data regarding patient demographics and the microbiological profile for pneumonia in the United Arab Emirates (UAE).(More)
In the 27 years, 1951--1977, 4315 babies weighing over 1 kg were born alive in Newcastle suffering from haemolytic disease of the newborn due to Rhesus isoimmunization; 197 (4.5 per cent) died within four weeks of delivery. Many babies with severe anaemia (cord Hb less than or equal to 8 g/dl) died of cerebral and/or pulmonary haemorrhage as a result of(More)
In the ten years between 1965 and 1974, 2227 patients with rhesus isoimmunization were seen at the Newcastle centre. The antibody titre and previous history were the basis on which patients were selected for amniocentesis and determination of the amniotic fluid bilirubin ratio. There were 288 patients with a bilirubin ratio which was greater than 1-1: of(More)