Background: This study aimed to identify the effect of the progression of postoperative wrist osteoarthritis on 5 years clinical and radiological outcomes after volar locking plate fixation of distal radius fractures. Methods: Altogether, 56 patients with distal radius fractures were followed up 5 years after surgery. Clinical assessment was performed using the Mayo modified wrist score, a visual analogue scale of pain, the Japanese version of the Disabilities of the Arm, Shoulder, and Hand score, and Patient-related wrist evaluation. Standardized wrist radiographs were used to assess wrist morphology and the Knirk and Jupiter’s degree of osteoarthritis. Multivariate logistic regression was used to analyze postoperative morphological changes in the wrist and carpal alignment regarding their correlation with progression of wrist osteoarthritis. Results: Progression of postoperative wrist osteoarthritis was recognized in 37 of the 56 cases (66.1%). Compared with the clinical outcomes at the time of the fracture union completion, almost clinical outcomes improved up to 5 years follow-up time as well as at 1 year after surgery. The range of wrist flexion at 5 years follow-up was significantly less in the progressive osteoarthritis group than in those with non-progressive osteoarthritis. The persistent step-off immediately after surgery significantly affected the postoperative progression of wrist osteoarthritis. Changes in the radial inclination, volar tilt, and radioscaphoid angle correlated with progression of wrist osteoarthritis. The highest correlation was with the change of radioscaphoid angle. Conclusions: Good clinical results were maintained at 5 years after surgery, but progression of postoperative wrist osteoarthritis interfered with improvement of wrist flexion. Change in the radioscaphoid angle was the factor that was most highly correlated with progression of postoperative wrist osteoarthritis.

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Background The number of adolescent patients with anorexia nervosa is increasing. In addition, an increase in pre‐adolescent patients with premenarchal onset has also been recognized. Detection of the disease in childhood and adolescence, however, is not always easy because the symptoms are not characteristic during this period. This study was performed to investigate detection of anorexia nervosa in children/adolescents by comparing energy and nutrient intake between patients with anorexia nervosa and healthy thin persons. Methods The subjects consisted of 13 girls aged 14.4 ± 3.5 years with anorexia nervosa and 320 healthy girls aged 12.4 ± 1.3 years. Dietary intake was evaluated using a validated diet history questionnaire designed for children/adolescents. Daily energy and nutrient intake were expressed as a percentage of the age‐ and sex‐matched reference amount. Results Healthy lean (body mass index [BMI], <50th percentile) girls with an above‐average score for desiring thinness had higher fat and lower cereal intake, and a trend of lower carbohydrate intake. In contrast, patients with anorexia nervosa, compared with thin (BMI <5th percentile) girls, characteristically had significantly lower energy, fat, zinc, vitamin C, and confectionery intake. Conclusions Lean girls with an above‐average desire for thinness appear to restrict their energy intake by reducing their intake of carbohydrates such as cereals while maintaining a relatively high fat intake. In contrast, girls with anorexia nervosa avoided fat and had a preference for vegetables. This characteristic eating pattern could be a useful clue for detection of anorexia nervosa in thin children and adolescents.

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