![]() ![]() It is in this area that stress fractures are generated, coinciding with the least irritated metatarsal area. Zone 3 comprises the area immediately adjacent to the jones fracture distally. Fractures in this area are known as jones. Zone 2 corresponds to fractures generated in the area immediately adjacent to the base, up to approximately one-third of the total length of the fifth metatarsal. The mechanism of injury is usually a forced inversion of the foot, which generates excess traction of the short lateral strut and plantar fascia. Zone 1 includes fractures generated at the base by avulsion. ![]() At the same time, a reduction of plantar pressure at the location of the lesion was observed with the use of the orthosis, allowing a rapid return to play thanks to this novel treatment. The use of plantar orthoses showed positive results that reduced the perception of VAS pain from 9/10 to 1/10. Engineers use FEM to find characteristic and vulnerabilities in their design prototypes. FEM is a mathematical model is the use of calculations, models and simulations to predict and understand how an object might behave under various physical conditions. A biomechanical study was performed and three plantar orthoses with different prescriptions for everyday shoes, running shoes, and football boots were designed and fabricated by subjecting the virtual 3D profile of the orthoses to the baropodometric loads of the patient using the Finite Element Method (FEM) calculation. An 18-year-old player suffered a fracture of the fifth metatarsal bone of the left foot during a match. Fracture of the fifth metatarsal bone is a common injury in professional soccer players. ![]()
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