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As a new learning tool, mind mapping helps students master the learning content in a visual and radical way. This paper intro-duced the concept and method of making the mind map and analyzed the advantages of mind mapping in improving learning efficiency and its application in rehabilitation. It is pointed out that the use of mind mapping would help students to integrate new and old knowledge, to improve the ability to solve clinical problems, and to train innovative talents by stimulating students' divergent thinking. It is believed that the mind map has a broad application prospect in rehabilitation education in China.
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Objective To find out factors related to avascular necrosis (AVN) of femoral head through a retrospective study of patients with femoral neck fractures treated with cannulated screws.Methods Two hundred and thirty cases of femoral neck fracture whn had been treated with cannulated screws in our department from August 1994 to October 2003 were analyzed statistically.Six factors of patient,age,gender,fracture type (Garden clas- sification),reduction method (close or open),the quality of reduction (Garden Index) and time interval from injury to surgery were analyzed statistically with rank sum test and logistic multiple regression.Results Factors that might have an impact on avascular necrosis of femoral head were ranked in the following likelihood sequence: fracture type,quality of reduction,reduction method,time interval from injury to surgery and age.Gender was found to have little impact on the prognosis of femoral neck fracture (P＞0.05).Conclusions Fracture displacement is the most critical factor that influences the prognosis.Anatomical reduction (close or open) must be achieved to re- duce the risk of AVN.Timing of surgery shows its importance.High age will not lead to an increased incidence of AVN.
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0.01).The value of urinary iodine in 47% of normal subjects and 17% of patients were between 100?g/L and 200?g/L.The value of urinary iodine in 53% of patients were over 200?g/L and 33% of patients were lower than 100?g/L.Conclusion:The iodine deficiency is corrected by the supplementation of iodized salt,however,both higher and lower intake of iodine exist among the patients with goiter and hyperthroidism.