Matthew B Mitchell

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Between 1984 and 1986, 177 nonconsecutive, primary total hip arthroplasties were performed in 150 patients using the Mallory-Head Porous femoral component (Biomet, Warsaw, IN) inserted without cement. Average time to follow-up evaluation for the entire population (including all early revisions) was 76 months (6.3 years). There were 10 revisions (6%) with an(More)
Three hundred four cementless acetabular components: 54 Ceramic (Richards Medical Co, Memphis, TN); 33 T-Tap (Richards Medical Co); 22 MHP, (Biomet Inc, Warsaw, IN); 109 PCA (Howmedica, Rutherford, NJ), and 86 S-ROM SuperCup (Joint Medical Products Co, Stamford, CT) were implanted in 271 patients between October 1982 and June 1986. Two hundred forty-one(More)
Seventy-four primary total hip arthroplasties were performed in sixty-eight patients between August 1990 and September 1991. Clinical assessments were made with use of the Harris hip score and, specifically, the pain component of that score. The preoperative radiographs were digitally quantified for calculation of the so-called canal-to-calcar ratio and the(More)
Extract: We have studied cardiac function and dynamics in 29 apparently normal children under 20 years of age.Table I lists the values obtained for intracardiac and great vessel pressures. There was no correlation of these pressures with either age or increasing body size. Except for the possibility that our data is inadequate for patients under one week of(More)
Between April 1988 and February 1989, 877 patients undergoing total hip (394 patients) and total knee (483 patients) replacement surgeries were given warfarin prophylaxis perioperatively and were tested with impedance plethysmography (IPG) approximately 17 days postoperatively (10 days post-discharge) in the outpatient office. There were 69 positive IPG(More)
Successful cementless total hip arthroplasty is dependent on initial stabilization at the bone-prosthesis interface. Other factors, such as the adaptability of the prosthetic design to fit specific bony geometries, affect clinical outcome. These design considerations have been incorporated into the Mallory-Head (Biomet Inc., Warsaw, IN) prosthetic system(More)
The purpose of this study was to determine if a relationship exists between work roles, work role values and job satisfaction for registered nurses employed in the hospital setting in the USA. A total of 201 nurses responded (33% response rate) to a survey instrument consisting of questions regarding work roles, work role values and the Minnesota(More)
BACKGROUND Smaller anastomotic coupling devices may increase the risk of complications in free flap reconstructions; however, the relationship between coupler size and venous thrombosis rates has not been adequately evaluated. We hypothesized that smaller-diameter coupling devices are associated with higher rates of venous thrombosis than larger diameter(More)