Brachymetatarsia (a.k.a. congenital short metatarsus) is a rare condition that develops from early closure of the growth plate.
Females are almost exclusively affected 1.
It typically involves the fourth ray or, less frequently, more than one metatarsal bone. Super numerous sesamoids at the metatarsophalangeal joints are most common in the fifth ray and least common in the fourth ray. The incidence in the first interphalangeal joint is 2% 2.
Brachymetatarsia can related to several genetic conditions and syndromes which include.
- aneuploidic anomalies
- non-aneuoploidic anomalies
Treatment and prognosis
There are several types of lengthening procedures which can be performed.
For metatarsals that only need to be lengthened up to 15 mm, a single-stage lengthening procedures with a variety of biologic and synthetic implants are preferred, whereas gradual lengthening allows for greater length gain and concomitant lengthening of the soft tissues.
- 1. Schimizzi A, Brage M. Brachymetatarsia. Foot Ankle Clin. 2004;9 (3): 555-70, ix. doi:10.1016/j.fcl.2004.05.002 - Pubmed citation
- 2. Coskun N, Yuksel M, Cevener M et-al. Incidence of accessory ossicles and sesamoid bones in the feet: a radiographic study of the Turkish subjects. Surg Radiol Anat. 2009;31 (1): 19-24. doi:10.1007/s00276-008-0383-9 - Pubmed citation
- 3. Kim HT, Lee SH, Yoo CI et-al. The management of brachymetatarsia. J Bone Joint Surg Br. 2003;85 (5): 683-90. J Bone Joint Surg Br (link) - Pubmed citation
- 4. Szendröi M. Color Atlas of Clinical Orthopedics. Springer Verlag. (2009) ISBN:3540855602. Read it at Google Books - Find it at Amazon
- 5. Robinson JF, Ouzounian TJ. Brachymetatarsia: congenitally short third and fourth metatarsals treated by distraction lengthening--a case report and literature summary. Foot Ankle Int. 1998;19 (10): 713-8. - Pubmed citation