Sesamoid Position in Healthy Volunteers Without Deformity: A Computed Tomography Study

J Foot Ankle Surg. 2016 May-Jun;55(3):461-4. doi: 10.1053/j.jfas.2016.01.008. Epub 2016 Feb 11.

Abstract

We used coronal computed tomography to determine the normal sesamoid position in 20 healthy volunteers. The sample involved 40 feet (20 left [50%] and 20 right [50%]) in 20 volunteers, including 11 females (55%) and 9 males (45%). The relationship between the first metatarsal head and the sesamoid complex was categorized as Yildirim grade 0 in every case (100%). The mean width of the foot was 77.7 ± 5.8 mm, and the ratio of the foot width to the distance from the second metatarsal head to the tibial sesamoid was 39.6% ± 2.02%. Based on our findings, we consider Yildirim grade 0 to be the normal sesamoid alignment.

Keywords: Yildirim grade; first metatarsal; hallux valgus; proximal phalanx; sesamoid complex.

MeSH terms

  • Adult
  • Cross-Sectional Studies
  • Female
  • Foot / anatomy & histology*
  • Healthy Volunteers
  • Humans
  • Male
  • Metatarsal Bones / anatomy & histology*
  • Metatarsal Bones / diagnostic imaging
  • Middle Aged
  • Reference Values
  • Sesamoid Bones / anatomy & histology*
  • Sesamoid Bones / diagnostic imaging
  • Tomography, X-Ray Computed*
  • Young Adult