| 摘要(英) |
Hallux valgus is one of the most common feminine foot disease, females’ joints are usually more flexible. By wearing pairs of shoes without proper biological mechanics design, the first metatarsal joint would easily be pressured to distortion. Not only affect the foot’s appearance, but also affect the balance. Take a look at the current situation, patients are having so much trouble to find effective and efficient orthosis, which leads to delaying the therapy and missing the proper time for rectifying for most of the time. Therefore, designing a handy and effective orthosis is the key purpose of this research.
By gaining more knowledge in orthopaedic and orthosis, it helped build the new type of in-shoe orthosis model with the support to the arch of foot, also with the function to rectify the phalanges and metatarsus. Volunteers were invited to participate in the in-shoe orthosis tests and experiments, photos of the foot appearance were taken by month to keep the track of the angle variation of the phalanges and metatarsus for four months, and compared the difference of the X-ray photos taken before and after the experiment to see the angle variation of the metatarsus. Building the foot model and analyzing with finite element, comparing the effects to Hallux valgus between different designs of orthosis.
After times of reviewing and improving, in the mean time also eliminating the trouble-causing design, a finalized and integrated model was built up and put into experiments. With the help of the in-shoe orthosis, the variation of the foot appearance of the volunteers were distinct, most were improved within the four months. From the result of the X-ray photos, the in-shoe orthosis not only improved the angle of the phalanx-metatarsus joint but also decreased the angle of the metatarsus. The result of the finite element analysis shows the in-show orthosis provide a proper direction for rectification, which is impossible for regular orthosis. And the stress on the foot while wearing the in-show ortheosis is the same to the orthosis the patients are using nowadays. With those experiment result, it is proved the design is feasible without doubts.
In the future, it’s another goal to increase the sample of successful rectification to prove the function of the in-shoe orthosis with statistics. Delivering the information about hallux valgus to help potential patients know more about it and receive better treatment. It helps a lot to solve woman’s vexation by improving hallux valgus in initial stage.
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