Pearcy M, Burrough S
J Bone Joint Surg Br. 1982;64(2):228-32. doi: 10.1302/0301-620X.64B2.7040410.
Assessment of bony union after anterior fusion of the lumbar spine has previously relied on the skilled interpretation of plain radiograph. A biplanar radiographic technique was used to measure small movements between vertebrae and to give a quantitative measure of bony union in 11 patients who had undergone interbody fusion with autogenous bone chips at one level in the lumbar spine. The investigation gave three types of results: bony union, where the fused level showed marked restriction of movement relative to the rest of the lumbar spine; paradoxical movement, where the fused joint showed marked reverse movement (when the patient flexed, the fused level of the lumbar spine extended) which was thought to be due to an anterior bony bar which caused an altered pattern of movement; and non-union, where the level of fusion showed no restriction of movement. The intervertebral joint above the level of fusion was shown to move more than the other joints in the lumbar spine. The study showed that bony union is possible with the use of autogenous cancellous bone chips, and that biplanar radiographic technique can determine the extent of union.
腰椎前路融合术后骨愈合的评估以前依赖于对平片的专业解读。采用双平面放射照相技术测量11例在腰椎某一节段接受自体骨屑椎间融合术患者椎骨间的微小运动，并对骨愈合进行定量测量。该研究得出了三种结果：骨愈合，即融合节段相对于腰椎其他部位显示出明显的运动受限；反常运动，即融合关节显示出明显的反向运动（当患者屈曲时，腰椎融合节段伸展），这被认为是由于前方骨桥导致运动模式改变所致；以及未愈合，即融合节段未显示运动受限。融合节段上方的椎间关节显示比腰椎其他关节运动更多。该研究表明，使用自体松质骨屑实现骨愈合是可能的，并且双平面放射照相技术可以确定愈合程度。
