Sesamoid Position in Healthy Volunteers Without Deformity: A Computed Tomography Study
Lamo-Espinosa JM (1), Flórez B (2), Villas C (3), Pons-Villanueva J (3), Bondia JM (4), Alfonso M (3), Aquerreta JD (4).
(1) Orthopedic Surgery and Traumatology Department, Clínica Universidad de Navarra, Pamplona, Spain. Electronic address: firstname.lastname@example.org.
(2) Orthopedic Surgery and Traumatology Department, Fundación Hospital de Calahorra, Logroño, Spain.
(3) Orthopedic Surgery and Traumatology Department, Clínica Universidad de Navarra, Pamplona, Spain.
(4) Radiology Department, Clínica Universidad de Navarra, Pamplona, Spain.
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.
CITATION J Foot Ankle Surg. 2016 Feb 11. pii: S1067-2516(16)00009-0. doi: 10.1053/j.jfas.2016.01.008