Kidner Procedure

The Kidner procedure is a surgical technique for treatment of a symptomatic accessory navicular bone. The original procedure involved dissection of the tendon fibers attaching to the cuboid and metatarsals, releasing the insertion of the posterior tibial tendon from the accessory navicular with a thin sliver of bone, removing the accessory navicular (if type II) or the accessory navicular and a portion of the scaphoid (if type III), and attaching the tendon with bone sliver to the undersurface of the navicular body.

Since the original description in 1929, modifications have been introduced, including the use of suture anchors (shown above), biotenodesis screws, or bone tunnels to reattach the posterior tibial tendon.

References

• Kidner, FC. The prehallux (accessory scaphoid) in its relation to flat foot. J. Bone Joint Surg. 1929 11(4):831–837.
• Kopp FJ, Marcus RE. Clinical outcome of surgical treatment of the symptomatic accessory navicular. Foot Ankle Int. 2004 Jan;25(1):27-30.
• Scott AT, Sabesan VJ, Saluta JR, Wilson MA, Easley ME. Fusion versus excision of the symptomatic Type II accessory navicular: a prospective study. Foot Ankle Int. 2009 Jan;30(1):10-5.