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. 2018 Jul 11;13:175. doi: 10.1186/s13018-018-0879-x

Fig. 2.

Fig. 2

Diagram of intra-operative drilling position. a Tunnel: approximately 40 mm from the distal end at the clavicle using a 3.5-mm drill bit. b Tunnel: approximately 20 mm from the distal end at the clavicle using a 4.0-mm drill bit. c Tunnel: approximately 15 mm to the AC joint at the acromion using a 3.5-mm drill bit