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Biomedical subjects

Steven J Morgan

Publications and source records attributed to Steven J Morgan.

22 records · Page 2Linked to original sources

Helmet availability at skiing and snowboarding rental shops. a survey of Colorado ski resort rental practices.

BACKGROUND: Many studies have determined that head injuries are serious and potentially life threatening in skiers and snowboarders. Helmets have proven to be effective in reducing the risk of head and brain injury in blunt trauma from bicycling, climbing, skiing, and snowboarding. The objective of this study was to evaluate the availability, cost, and prevelance of helmet rental to skiers and snowboarders at Colorado ski resorts. METHODS: A survey of rental shops based at Colorado ski areas was conducted during the 1998-1999 ski season. Surveys were mailed to 27 Colorado ski areas. The establishments surveyed were skiing/snowboarding rental shops owned, operated, or both by the resorts based at respective mountains. RESULTS: Nineteen of 26 responding Colorado ski resorts rented helmets, and helmet rental has been increasing in popularity. However, helmets were not considered as part of the standard rental package by any of the resorts, and only one resort offered a discount on helmet rental with a package. While 2% to 38% of skiers/snowboarders rented equipment, less than 1% to 8.6% of renters rented helmets. Subjectively, helmet rental was encouraged mostly for children. CONCLUSIONS: The data acquired should represent a reasonable picture of current helmet rental practices at Colorado ski areas. While helmet use is increasing, it has not yet become generally accepted.

Adolescent↗

Prospective comparison of contrast-enhanced computed tomography versus magnetic resonance venography in the detection of occult deep pelvic vein thrombosis in patients with pelvic and acetabular fractures.

OBJECTIVE: To determine the rate of pelvic vein thrombosis following acetabular or pelvic fracture identified by enhanced computed tomography venography or magnetic resonance venography. DESIGN: Prospective evaluation of computed tomography venography and magnetic resonance venography in patients with pelvic and acetabular trauma as a screening tool for deep vein thrombosis. SETTING: Level I trauma center. RESULTS: Thirty patients with pelvic or acetabular fractures and who met the study criteria were prospectively screened with magnetic resonance venography and computed tomography venography to determine preoperative presence of pelvic venous thrombosis. Pelvic deep vein thrombosis was detected by computed tomography venography in two patients (7%) and by magnetic resonance venography in four patients (13%). Invasive selective pelvic venographies were performed on the five subjects who tested positive on either one or both screening tests. Only one computed tomography venography case was validated by invasive pelvic venography. The false-positive rate for computed tomography venography was 50%, and the false-positive rate for magnetic resonance venography was 100%. CONCLUSIONS: We cannot recommend the sole use of either computed tomography venography or magnetic resonance venography to screen and direct the treatment of asymptomatic thrombi in patients with fracture of the pelvic ring because of the high false positive rates. If these studies are used as screening tools, confirmation of the presence of thrombosis with selective venography should be performed prior to initiating invasive treatment with a vena cava filter. Clinical decisions based solely on one of these imaging techniques may result in inappropriate aggressive treatment due to the high false-positive rate.

Acetabulum↗

Results and technique of unstable pediatric femoral fractures treated with submuscular bridge plating.

Twenty-seven patients underwent submuscular bridge plating for unstable pediatric femoral fractures with contraindications to fixation with flexible intramedullary nails. This report discusses the technique and results. A precontoured plate was tunneled proximally through a small distal incision in the subvastus plane to bridge the fracture. The plate was secured to the femur, with screws placed percutaneously proximal and distal to the fracture to reduce and stabilize the fracture. A retrospective review of radiographs and clinical follow-up was analyzed for postoperative alignment, any change in alignment or instrumentation failure, bony union, clinical exam, and complications. There were no intraoperative or postoperative complications. There has been no instrumentation failure or loss of reduction. Early callus was seen by 6 to 8 weeks and stable bony union by 12 weeks in all patients. Submuscular plating is a reasonable option for operative stabilization of comminuted and unstable pediatric femoral fractures.

Adolescent↗