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(A-E) This is a medial surface view of the left ankle. (A) 5 cc of normal saline is injected into the tibialis posterior tendon sheath. (B) A scalpel with a #15 blade is used to make an incision just over the medial entry site (C) a right angle forceps is used to develop the portal site (D), the cannula is introduced into the portal, and the water valve is engaged (E). The trocar is finally removed, and the camera is inserted through the portal site and into the tendon sheath.
