Rijkenhuizen A B, Nemeth F, Dik K J, Goedegebuure S A
Department of General and Large Animal Surgery, Veterinary Faculty, State University Utrecht, The Netherlands.
Equine Vet J. 1989 Nov;21(6):399-404. doi: 10.1111/j.2042-3306.1989.tb02184.x.
An arteriographic and histological study of the arterial blood supply of 35 navicular bones, from 19 adult horses with no clinical or radiographical signs of navicular disease, is described. The arteries enter the navicular bone from four directions: distal, proximal, medial, and lateral. The navicular bone can be divided into areas which receive arteries from one, two, or three directions, whereas the distal supply covers the largest part of the navicular bone. The distal arteries enter the navicular bone through the nutrient foramen which contains loose connective tissue, nutrient vessels and myelinated nerves. At least 77 per cent of the nutrient foramina contains synovial membrane. Twelve per cent of the arteries in the navicular bone show histological changes. Thickening of the intima with or without splitting of the internal elastic membrane and hyalinization, fibrosis and hypertrophy of the media were observed.
本文描述了对19匹无舟状骨病临床或放射学症状的成年马的35块舟状骨动脉血供进行的血管造影和组织学研究。动脉从四个方向进入舟状骨：远侧、近侧、内侧和外侧。舟状骨可分为从一个、两个或三个方向接受动脉供血的区域，而远侧供血覆盖舟状骨的最大部分。远侧动脉通过含有疏松结缔组织、营养血管和有髓神经的滋养孔进入舟状骨。至少77%的滋养孔含有滑膜。舟状骨中12%的动脉出现组织学变化。观察到内膜增厚，伴有或不伴有内弹性膜分裂以及透明变性、中膜纤维化和肥厚。
