Buckingham S H, Jeffcott L B
Department of Veterinary Science, University of Melbourne, Werribee, Victoria, Australia.
Vet Rec. 1991 Apr 20;128(16):370-3. doi: 10.1136/vr.128.16.370.
Methods for the non-invasive assessment of bone quality were used to monitor the osteopenia induced by immobilising a forelimb in a cast. These techniques included the measurement of ultrasound velocity, single photon absorptiometry and radiographic photodensitometry. Serial measurements were made before, during and after an eight week period of immobilisation of the left forelimb of four adult standardbreds in a light fibreglass cast which included the foot and extended above the carpus. The measurements continued for 12 weeks after the removal of the cast. The results indicated a trend to decreasing bone strength and mineral content in both forelimbs, with the decreases being greater in the limb with the cast. The values tended to recover slowly after the removal of the cast, then more quickly after the horses returned to the paddock four weeks later. The differences between the limb with the cast and the opposite limb were significant at only a few points of comparison.
采用无创评估骨质量的方法来监测因用石膏固定前肢而诱发的骨质减少情况。这些技术包括超声速度测量、单光子吸收测定法和放射照相光密度测定法。对4匹成年标准赛马的左前肢进行为期8周的石膏固定，石膏为轻质玻璃纤维材质，包括足部并延伸至腕关节上方，在固定前、固定期间和固定后进行了系列测量。拆除石膏后测量持续了12周。结果表明，两个前肢的骨强度和矿物质含量均呈下降趋势，其中固定石膏的肢体下降幅度更大。拆除石膏后数值往往恢复缓慢，4周后马匹回到牧场后恢复得更快。在仅有的几个比较点上，固定石膏的肢体与对侧肢体之间的差异具有显著性。
