Table 1.

Pearls for Endoscopic Release of Master Knot of Henry

The posteromedial portal should be in line with the plantar surfaces of the sustentaculum tali and the first metatarsal.

The plantar portal should be distal to the navicular bone.

The major risks of the described procedure are injury to the tibial nerve at the tarsal tunnel and injury to the medial plantar nerve at the sole.

The ankle should not be in a position of dorsiflexion during the procedure.

To minimize the risk of injury to the medial plantar nerve, the release of the master knot of Henry should be performed under clear arthroscopic visualization and the suction should be kept to a minimum.