Abstract:

BACKGROUND: Complex anatomic deformity of the foot due to hallux valgus results in the changes of plantar biomechanics.
OBJECTIVE: To analyze the risk factors of hallux valgus and to detect the plantar pressure of hallux valgus in natural walking.
METHODS: The dynamic plantar pressures of 50 patients and 30 age-, height- and weight-matched normal persons were respectively tested by the Footscan USB2 system (RSscan International, Belgium). All subjects were detected during barefoot walking over three times, to obtain the dynamic plantar pressure curves and characteristic parameters for further analysis.
RESULTS AND CONCLUSION: Among patients with hallux valgus, women accounted for 94% (all wearing pointed high-heeled shoes), men accounted for 6% (none wearing pointed high-heeled shoes), and 96% had a genetic history. During the natural walking, the first metatarsal pressure of hallux valgus feet was increased significantly, which markedly differed from the normal people. The average peak pressure, average load, and average impulse of the first metatarsal in hallux valgus patients were significantly increased compared with the normal controls (P < 0.05 or P < 0.01). These results show that wearing high-heeled pointed shoes is another important factor of the hallux valgus in addition to genetic factors. Pressure, load, impulse of the first metatarsal in hallux valgus patients are markedly increased contributing to the occurrence and development of the hallux valgus. All above findings provide an important basis for the prevention, treatment and functional rehabilitation of hallux valgus.

中国组织工程研究杂志出版内容重点：组织构建；骨细胞；软骨细胞；细胞培养；成纤维细胞；血管内皮细胞；骨质疏松；组织工程

Key words: Hallux Valgus, Risks Factors, Foot, Pressure, Gait, Tissue Engineering