Beccati F, Gialletti R, Giontella A, Davanzo S, Di Meo A, Pepe M
Centro di Studi del Cavallo Sportivo, Dipartimento di Patologia, Diagnostica e Clinica Veterinaria, University of Perugia, Via San Costanzo 4, 06126, Perugia, Italy.
Anat Histol Embryol. 2014 Oct;43(5):403-7. doi: 10.1111/ahe.12075. Epub 2013 Jun 25.
The aim of this study was to identify differences in bone shape (height and width) of proximal sesamoid bones (PSB) in 2-year-old Thoroughbred racehorses in training. Dorsal 15° proximal-palmarodistal oblique images of each metacarpophalangeal joint were acquired before the horses started training and at 1 year after the start of exercise and racing. There were no changes in height and width of PSBs induced by training. There was a significant difference of height and width between medial and lateral PSBs. In both forelimbs, the medial PSB was significantly wider and shorter than the lateral PSB. The medial PSB of the right forelimb was significantly wider than that of the left forelimb. These results might explain some limb predilection for fracture of PSBs. The difference in strain pattern between medial and lateral PSBs in different loading conditions needs to be investigated.
本研究的目的是确定2岁训练中的纯种赛马近端籽骨（PSB）的骨形态（高度和宽度）差异。在马匹开始训练前以及开始运动和比赛1年后，采集每个掌指关节的背侧15°近端-掌跖远端斜位图像。训练未引起PSB高度和宽度的变化。内侧和外侧PSB在高度和宽度上存在显著差异。在双前肢中，内侧PSB比外侧PSB明显更宽更短。右前肢的内侧PSB比左前肢的明显更宽。这些结果可能解释了PSB骨折的一些肢体偏好。不同负荷条件下内侧和外侧PSB之间应变模式的差异需要进一步研究。
