Currently, it remains unclear about the mechanical effects of different weights and foot varus angles on metatarsal lesions in patients with strephenopodia in the clinical rehabilitation process.In this study,a coupling model related to the lower extremities was established.Besides,some patients with different weight loads and different foot varus angles were included in this study.The effects of some pathological parameters (such as the foot varus angles of 0°,10°,15°,and 20°,as well as the weight loads of 0.5,1,and 2 times the body weight) on the local bone load of feet were analyzed by statics and dynamics numerical simulation methods.These scientific endeavors were made to accurately analyze the point force within the foot bone area under different working conditions.Moreover,the mechanical effects of different foot varus angles and weight loads on five metatarsal bones and lateral tarsometatarsal joints were further revealed through the comparative analysis of the affected foot and the healthy foot.These results indicated that after the foot varus angle increased,a significant difference in the metatarsal load between healthy and affected feet was observed in the fourth and third metatarsal bones,especially the third metatarsal bone.The lateral fifth metatarsal bone was the main weight-bearing component in the affected foot,and hence this part was prone to stress fractures.These findings provided scientific mechanical reference for clinical orthopedic surgeons to implement precise treatment of strephenopodia.

Wang Kun, Yan Chaowei, Han Pengfei. Mechanical analysis of metatarsal bone load in patients with varus foot based on finite element method. Academic Journal of Medicine & Health Sciences (2024), Vol. 5, Issue 5: 29-40. https://doi.org/10.25236/AJMHS.2024.050505.

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