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- W2362583743 abstract "Objective:To investigate the biomechanical effect of the tibial and fibular sesamoids below the head of the first metatarsal on the first ray function of the forefoot and discuss the choice of sesamoid bone disease surgery.Method: Twelve fresh low limbs of frozen cadavers were obtained for the study.Established the first ray normal biomechanical model.A ramp controlled weight supplied a functional load force to the flexor hallucis longus.As a balance was reached between the flexors and extensors,the great toe was requested at the different angle of flexion.Force data were obtained at 6 progressively sesamoid state.Result: (1) When distal hemiresection of the tibial or fibular sesamoid,the effective tendon moment arm of the flexor hallucis longus was only descended 6～9% compared with that of intact state.There was no significant statistical difference( P 0.05);(2)When resection of the entire tibial or fibular sesamoid,the effective tendon moment arm of the flexor hallucis longus was descended 18～35% compared with that of intact state.There was significant statistical difference( P 0.05);(3)When resection of both the medial and lateral sesamoid,the effective tendon moment arm of the flexor hallucis longus was descended over 22% compared with that of intact state.There was significant statistical difference( P 0.05).Conclusion:(1)No significant change in effective flexor hallucis longus tendon moment arm is observed with hemiresection of either the medial or lateral sesamoid,hemiresection of either the medial or lateral sesamoid can be used in sesamoid fracture and multipartite sesamoids with sesamoiditis.(2) Significant decreases in the effective tendon moment arms occur with full medial sesamoid resection,full lateral sesamoid resection,and both of the medial and lateral sesamoids resection.Total excision of either the medial or lateral sesamoid should be cautious.Total excision of both the medial and lateral sesamoids must be avoided." @default.
- W2362583743 created "2016-06-24" @default.
- W2362583743 creator A5051351142 @default.
- W2362583743 date "2005-01-01" @default.
- W2362583743 modified "2023-09-25" @default.
- W2362583743 title "Biomechanical effect of the sesamoid resection below the head of the first metatarsal on the function of the first ray in forefoot" @default.
- W2362583743 hasPublicationYear "2005" @default.
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