Abstract
In recent years, because of our aging, the rate of people who show symptoms of gonarthrosis is increasing. The proportion of patients with osteoarthritis, in particular, is the largest among them. The fibula excision method is one method to treat this symptom. However, the exact position and quantity of fibula to be excised depend solely upon the doctor's experience and intuition at the time of operation, presently, no clear, indicative means exist. Therefore, to consider the possibility of excessive burden on the human body, there is a pressing need to determine the stress distribution state of the periphery of the knee joint after the operation. Thus, using the stress 3D freezing method, this research examined the stress distribution states of the periphery of knee joint by changing the position and quantity of fibula to be excised. Analyzing the influence of the fibula that extends to around the knee joint using the 3D stress distribution state, it was concluded that the fibula excision method is effective in improving the condition of osteoarthritis.