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. 2020 Jun 29;15:239. doi: 10.1186/s13018-020-01754-y

Fig. 1.

Fig. 1

Experimental set up showing the Ex-fix screws labeled A in the metacarpal diaphysis and B in the middle phalanx. IOP needles are seen in the metacarpal metaphysis [23], subchondral epiphysis [1], and middle of the proximal phalanx [10]. The loading device is seen on the right with its calibrated internal spring