Upsala journal of medical sciences
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To investigate the influence of different treatment factors in the outcome and rehabilitation after hip fractures, a series of 282 consecutive patients with femoral neck or trochanteric fractures were followed up prospectively for two years postoperatively. The long-term results were analysed by a review of the patients' records after 10 years. The hospital stay and aftercare in the total material were shorter when the operation was not delayed. ⋯ Fracture healing was influenced by treatment factors both in the femoral neck group (poor reduction and postoperative infection) and in the trochanteric group (postoperative infection and unstable internal fixation). Mortality was related to preoperative factors and was not influenced by the treatment. The frequency of the occurrence of another hip fracture up to 10 years postoperatively was 17.4%, with an equal distribution of fracture types.
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Comparative Study
Implantable drug delivery systems in computed tomography and magnetic resonance imaging--a comparison between titanium and stainless steel.
The effect of implantable drug delivery systems on computed tomography (CT) and magnetic resonance imaging (MRI) was investigated in a phantom and in two patients. The implantable systems of identical construction consisted either of medical grade titanium alloy or stainless steel. ⋯ These artefacts were substantially reduced in images of the titanium port. Similar results were found in situ in two patients.
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The accuracy of transcutaneous CO2 monitoring (PtcCO2) was studied in 22 subjects suspected of having sleep-related breathing disorders, by comparison with arterial CO2 measurements (PaCO2). At rest 40 simultaneous sets of PaCO2 and PtcCO2 were obtained. The mean PaCO2 (+/-SD) was 5.3 +/- 0.9 kPa and PtcCO2 was 5.7 +/- 1.0 kPa (r = 0.79). ⋯ During sleep there was an increase in PtcCO2 (by 0.1-0.3 kPa) with each apneic event, the magnitude of the increase depending on the length and distribution of these events. With repeated long apneas there was a cumulative increase in PtcCO2, especially during REM sleep. Continuous PtcCO2 monitoring proved useful in monitoring and diagnosing sleep-related breathing disorders.