Publications by authors named "Helenius I"
The authors used magnetic resonance imaging to evaluate the hip joint in patients with diastrophic dysplasia. T1- and T2-weighted images were obtained from 35 patients (25 female patients, 10 male patients) of different ages (1-39 years). The status of the joint and paraarticular soft tissues was evaluated.
View Article and Find Full Text PDFBackground: Surgical procedures constitute an important part of every physician's daily practice. However, few studies have investigated the surgical skills of graduating medical students and, especially, factors that might be related to their degree of surgical competence. The present study sought to gather information on the basic surgical skills of graduating medical students and to establish whether factors influencing the students' competence could be identified and used to improve the teaching of basic surgical skills at medical schools.
View Article and Find Full Text PDFStudy Design: A retrospective follow-up study of adolescent idiopathic scoliosis after Harrington instrumentation and spondylodesis was conducted.
Objective: To correlate radiographic parameters with the Scoliosis Research Society questionnaire in terms of patient outcome, clinical findings, spine mobility, and trunk strength measurements.
Summary Of Background Data: Previous studies have shown that long-term radiologic correction can be achieved with Harrington instrumentation.
Background: Patients with diastrophic dysplasia (DD) have many typical and some peculiar radiological findings in their skeleton. Currarino reported recently that 6 of his 12 patients with DD had accessory ossification centers of the manubrium sterni.
Objectives: This study analyzed abnormalities of the manubrium sterni in patients with DD to find out more about the prevalence and natural history.
Objectives: To investigate the occurrence of and risk factors for focal sialadenitis in patients with rheumatoid arthritis (RA), mixed connective tissue disease (MCTD), ankylosing spondylitis (AS), and spondyloarthropathy (SpA).
Methods: A total of 85 patients (25 with RA, 19 with MCTD, 19 with AS, 22 with SpA) participated in the study. Each patient filled out a questionnaire for eye and oral symptoms and for the use of medication, and was interviewed; other tests included Schirmer's test, laboratory tests, collection of unstimulated and stimulated whole saliva, and minor salivary gland biopsy.
Background And Aims: A few studies have investigated therapeutic effect of hip arthroscopy in osteoarthritis, and therefore the use of hip arthroscopy in osteoarthritis has remained controversial. The aim of this study was to evaluate diagnostic and therapeutic aspects of hip arthroscopy in primary osteoarthritis.
Material And Methods: During a time period from 1995 to 1999, a total of 68 patients had an arthroscopic evaluation of primary hip osteoarthritis at the Päijät-Häme Central Hospital, Lahti, Finland.
The hypothesis that eosinophilic airway inflammation is present in many patients presenting with respiratory symptoms suggestive of asthma but with normal lung function was tested. Thirty-six consecutive patients presenting with these features were studied. Twenty-five asthmatics and 43 healthy volunteers served as control groups.
View Article and Find Full Text PDFExercise may increase ventilation up to 200 L/min for short periods of time in speed and power athletes, and for longer periods in endurance athletes, such as long-distance runners and swimmers. Therefore highly trained athletes are repeatedly and strongly exposed to cold air during winter training and to many pollen allergens in spring and summer. Competitive swimmers inhale and microaspirate large amounts of air that floats above the water surface, which means exposure to chlorine derivatives from swimming pool disinfectants.
View Article and Find Full Text PDFObjectives: To study factors affecting the occurrence of exercise induced bronchospasm (EIB) in elite runners.
Methods: Fifty eight elite runners, 79% of them belonging to Finnish national teams, volunteered. The athletes answered a questionnaire on respiratory symptoms.
Background: High prevalence of bronchial hyperresponsiveness and asthma has been found in cross-country skiers. There is limited evidence that asthma and bronchial responsiveness would be common also in athletes with summer events.
Objectives: The objective of this study was to investigate occurrence of and risk factors for increased bronchial responsiveness and asthma in elite athletes with summer events and to compare their results with those of control subjects.
To investigate respiratory symptoms, increased bronchial responsiveness, and signs of airway inflammation in elite swimmers, we examined 29 swimmers from the Finnish national team and 19 healthy control subjects (nonasthmatic, symptom-free). They answered a questionnaire and were interviewed for respiratory symptoms. Lung volumes were measured and bronchial responsiveness assessed by a histamine challenge test.
View Article and Find Full Text PDFBackground: Intensive endurance training has been associated with a high prevalence of symptoms compatible with asthma in elite athletes. It is not known, however, whether there is an association between the type of training for competitive events and the risk of asthma in highly trained athletes.
Methods: Two hundred and thirteen track and field athletes, mostly from Finnish national teams, and 124 controls of the same age completed a respiratory symptom questionnaire.
Background: Healthy elite runners often report bronchial symptoms when training in subzero temperatures. The occurrence and causes of exercise-induced bronchospasm after heavy exercise in cold air were investigated in elite runners.
Methods: Thirty two non-asthmatic runners, mostly from Finnish national teams, volunteered to take part in the study.