Prescher A, Bohndorf K
Institute of Anatomy, University of Technology, Aachen, Germany.
Skeletal Radiol. 1993 Nov;22(8):581-5. doi: 10.1007/BF00197139.
In a collection of 101 anatomical preparations of the human pelvis, ossification of the sacrotuberous ligament was found in 8 cases. In 7 of these, the ossification showed a characteristic intraligamentous morphology, with a broad-based origin at the ischial tuberosity and tapering off craniomedially. The length varied between 1.1 and 7.2 cm. The surface of the bone formations appeared fasciculated, except in one case which had a wax-like flowing bone formation lying upon the sacrotuberous ligament. Careful anatomical and radiological examination of the spine, the ulnae, the calcanei and the iliac crests in these 8 cases, revealed in only one case any findings (spurs at the olecranon) that could be attributed to extraspinal manifestations of diffuse idiopathic skeletal hyperostosis (DISH). Indeed, in no case were the most widely accepted diagnostic criteria of DISH, the spinal alterations, seen. We therefore suggest that ossification of the sacrotuberous ligament is an autonomous finding and not a good indicator of the presence of spinal DISH.
在一组101份人体骨盆解剖标本中，发现8例骶结节韧带骨化。其中7例，骨化呈现出特征性的韧带内形态，起于坐骨结节，基部宽阔，向颅内侧逐渐变细。长度在1.1至7.2厘米之间。骨形成的表面呈束状，只有1例例外，该例有一个蜡样的、位于骶结节韧带上的流动骨形成。对这8例患者的脊柱、尺骨、跟骨和髂嵴进行仔细的解剖和影像学检查，仅在1例中发现了可能归因于弥漫性特发性骨肥厚（DISH）脊柱外表现的结果（鹰嘴处有骨刺）。实际上，在任何病例中都未见到DISH最广泛接受的诊断标准——脊柱改变。因此，我们认为骶结节韧带骨化是一个独立的发现，并非脊柱DISH存在的良好指标。
