Abstract
Accessory navicular bone is a developmental variant that usually remains asymptomatic. It occurs due to failure of union of secondary ossification centers near the native bone. Three types have been described in the literature of which type 2 and 3 can be associated with posterior tibial tendon dysfunction, flat foot and Os naviculare syndrome. Diagnosis can be made with plain radiographs. CT scan and MRI would be indicated as to determine type and look for bone marrow/soft tissue oedema. This case report of a javelin thrower highlights the clinical approach of this unusual cause of mid foot pain.
Keywords: Os naviculare, Mid foot pain, Athlete.
References
- Romanowski CA, Barrington NA. The accessory navicular - an important cause of medial foot pain. Clin Radiol. 1992; 46: 261-264.
- Silva TW, Duggal NS and Gopalraj RK. A Curious Case of Midfoot Pain. J Fam Med. 2016; 3(9): 1086. ISSN: 2380-0658
- Kidner FC. The prehallux (accessory scaphoid) in its relation to flat-foot. J Bone Joint Surg Am 1929; 11: 831-7.
- Perdikakis E, Grigoraki E, Karantanas A. Os naviculare: the multi-ossicle configuration of a normal variant. Skeletal Radiol 2011; 40: 85-8.
- Coughlin MJ, Saltzman CJ, Anderson RB. Sesamoids and accessory bones of the foot : Coughlin MJ, Saltzman CL, Anderson RB. Mann’s Surgery of the Foot and Ankle Ninth, Edition. Vol 9 Philadelphia: Elsevier Saunders, 2014:544-551.
- Bernaerts A, Vanhoenacker FM, Van de Perre S, De Schepper AM, Parizel PM. Accessory navicular bone: not such a normal variant. JBR-BTR. 2004 Sep-Oct;87(5):250-2.
- Abourazzak FE, Shimi M, Azzouzi H, Mansouri S, El Mrini A, Harzy T. An unusual cause of medial foot pain: The cornuate navicular. Eur J Rheumatol. 2015 Mar;2(1):33-34.
- Choi YS, Lee KT, Kang HS, Kim EK. MR imaging findings of painful type II accessory navicular bone: correlation with surgical and pathologic studies. Korean J Radiol. 2004 Oct-Dec;5(4):274-9.
- Jegal H, Park YU, Kim JS, Choo HS, Seo YU, Lee KT. Accessory Navicular Syndrome in Athlete vs General Population.Foot & Ankle International. 2016;37(8):862-867.
- Gueye, Alioune & Niane, Mouhamadou & Kinkpé, Charles & Diop, Abdoulaye & Daffe, Mohamed & Dia, Rokhaya & Abdoulaye, Ndiaye. (2019). Symptomatic accessory navicular bone: A case report. International Journal of Orthopaedics Sciences. 5. 806-808.
Corresponding Author
Dhairyasheel Gole
Dept of Sports Medicine, Netaji Subhas National Institute of Sports, Patiala, Punjab-147001, India
DOI: https://dx.doi.org/10.18535/jmscr/v8i11.89
