Fig 5.

Arthroscopic dorsal closing-wedge osteotomy of the second metatarsal head of the right foot. The patient is in the supine position. A triangular supporting frame is placed under the knee to flex the knee and put the foot flat onto the operating table. The dorsomedial portal is the viewing portal, and the dorsolateral portal is the working portal. The lateral half of the bone wedge is resected with the burr (B) via the dorsolateral portal. (MTh, metatarsal head fragment; MTs, metatarsal shaft fragment; PH, plantar hinge of osteotomy site.)