Arnbjerg J
Nord Vet Med. 1979 Oct;31(10):429-35.
After a short review of previous literature about fractures of the navicular bone in horses, the symptoms and the pathological-anatomical changes of the condition are described. The most important clinical symptom is acute severe lameness without significant swellings, but with pronounced pain reaction to rotation of the coffin joint. After rest the lameness is reduced considerably, but without treatment it can persist for several years. Adherences between the deep flexor tendon and the site of the fracture and eventual damage to the coffin joint are considered to be the cause of the persisting lameness. Three case reports are given where the horses were shoed with full bar shoes with clips and high calks, and were given two months rest in a box. After that the rehabilitation was started with increasing load on the leg in question in spite of some initial lameness. The three horses all regained their full working capacity after ca. 6 months' treatment. There is no formation of callus at the site of the fracture, but only a firm formation of fibrous tissue which does not bother the horse unless the fragments are too much dislocated giving rise to a greater destruction of the coffin joint. Radiographically the fracture line persists for the rest of the horse's life.
在对先前有关马舟状骨骨折的文献进行简短回顾后，描述了该病的症状及病理解剖变化。最重要的临床症状是急性重度跛行，无明显肿胀，但对蹄关节旋转有明显疼痛反应。休息后跛行明显减轻，但未经治疗可持续数年。深部屈肌腱与骨折部位之间的粘连以及最终对蹄关节的损害被认为是持续性跛行的原因。给出了三个病例报告，这些马钉上带夹和高蹄铁的全掌蹄铁，并在厩舍中休息两个月。之后，尽管最初有一些跛行，但仍开始对患腿逐渐增加负荷进行康复治疗。经过约6个月的治疗，这三匹马均恢复了全部工作能力。骨折部位没有形成骨痂，只有纤维组织的坚实形成，除非骨折碎片移位过多导致蹄关节更大程度的破坏，否则不会给马带来困扰。在X线片上，骨折线在马的余生中都会存在。
