PMC6854976_01
Case 1: anteroposterior radiographs of a 19-year-old sumo wrestler with a Jones fracture (a-c). At 9 months after conservative treatment, nonunion is observed on radiography (b). However, 4 years later, bone union is observed (c).
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Radiography showed fractures of the proximal epiphysis of the fifth metatarsal bone (Figure 1(a)). Radiography showed nonunion of the Jones fracture (Figure 1(b)), but he did not go down in rank after the fracture. Four years after the injury, bone union was observed (Figure 1(c)).
PMC6854976_02
Case 2: anteroposterior radiographs of a 22-year-old sumo wrestler with a Jones fracture (a-f). Radiography shows gradual bone union at 2 weeks (b), 10 weeks (c), 3 months (d), and 4 months (e) after conservative treatment. However, at 6 months after treatment, the foot was refractured (f).
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Radiography revealed fractures of the proximal epiphysis of the fifth metatarsal bone and thickening of the periosteum (Figure 2(a)). Radiography showed gradual bone union; thus, his amount of training gradually increased (Figures 2(b)-2(e)). Six months after the injury, his foot was refractured (Figure 2(f)).
PMC6854976_03
Case 3: anteroposterior radiographs of a 28-year-old sumo wrestler taken when he first visited another hospital (a) and 1 week later (b). We treated the Jones fracture operatively at 2 weeks after the first visit (c). Radiographs taken 4 weeks postoperatively are shown (d). At 4 months after operation, a screw broke (e).
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Radiography did not show a fracture, but the periosteum was thickened; thus, there was a possibility of fatigue fractures (Figure 3(a)). One week later, a reexamination revealed a fracture of the proximal epiphysis of the fifth metatarsal bone (Figure 3(b)). We performed the operation 2 weeks after his first visit to the other clinic (Figure 3(c)). He gradually increased his training level, but returned to a tournament without permission one month postoperatively (Figure 3(d)). However, a screw broke four months postoperatively (Figure 3(e)).