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. 2020 Sep 18;8(9):2325967120947725. doi: 10.1177/2325967120947725

Figure 1.

Figure 1.

Zone determination method; left side, lateral view. ① Long axis of the fifth metatarsal (a line connecting the midpoints of 2 diaphyses). ② The vertical line to the fifth metatarsal long axis from the proximal end of the fourth to fifth intermetatarsal joint. ③ The vertical line to the fifth metatarsal long axis from the distal end of the fourth to fifth intermetatarsal joint. 1 (blue area), zone 1; 2 (red area), zone 2; A, anterior; P, posterior.