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  • Title: The relationship of the accessory navicular to the development of the flat foot.
    Author: Sullivan JA, Miller WA.
    Journal: Clin Orthop Relat Res; 1979 Oct; (144):233-7. PubMed ID: 535230.
    Abstract:
    The Kidner procedure has been the most frequently recommended form of surgical treatment for the painful accessory navicular. This formal relocation of the posterior tibial tendon is said to restore the dynamic balance to the foot which is lost when the posterior tibial tendon gives an abnormal insertion into the accessory ossicle. The literature was reviewed to ascertain what is known or what is believed about the accessory navicular and the role of the posterior tibial tendon in the support of the longitudinal arch of the foot. Eighteen patients who had simple excision of the accessory navicular were reviewed to assess the success of such a procedure. In follow-up they all had very satisfactory results. A second group of 208 patients with non-traumatic foot complaints were reviewed to determine the incidence of accessory navicular and its association with the flat foot. Twenty-nine cases of previously undetected accessory navicular were identified in this group giving us a total of 179 patients without accessory navicular and 49 patients with accessory navicular available for study. There was no significant difference between the arch in these 2 groups of patients. Based on the findings in this study, the accessory navicular plays no role in the development of a flat foot. Simple excision of the prominent ossicle seems to be the surgical procedure of choice when conservative means of management fail.
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