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(A) Right ankle, seen from a proximal perspective, with the foot resting on the surgeon's abdomen. Number 1 denotes the inflow portal, 2 the outflow portal, 3 the cannula, 4 the needle arthroscope, 5 the connected infusion bag, and 6 the outflow cannula with water/saline coming out. (B) Intra-articular needle arthroscopic view of the right ankle. OC denotes the outflow cannula. (N, superficial peroneal nerve; TibA, tendon of the tibialis anterior muscle.)
