Firth E C, Poulos P W
Vet Pathol. 1984 Jan;21(1):10-7. doi: 10.1177/030098588402100103.
Examination of growth plate defects in the distal radial physis of 13 foals three to 70 days of age revealed lesions in the lateral and medial aspects of the distal radial physis; the lateral defects were more numerous and obvious. Lesions consisted of widening of the zone of hypertrophying cells of the metaphyseal growth plate (retained cartilage), retained cartilage with discontinuity of cartilage and primary spongiosa, and microfracture of the primary spongiosa. In some foals, the cartilage retention was thought to be due to primary spongiosa microfracture, although fracture subsequent to cartilage abnormality was not excluded.
对13匹3至70日龄马驹桡骨远端生长板缺陷的检查发现，桡骨远端生长板的外侧和内侧存在病变；外侧缺陷更为常见且明显。病变包括干骺端生长板肥大细胞区增宽（软骨残留）、软骨与初级骨小梁连续性中断的软骨残留，以及初级骨小梁微骨折。在一些马驹中，软骨残留被认为是由于初级骨小梁微骨折所致，尽管不排除软骨异常继发骨折的情况。
