Brunet J A, Wiley J J
J Bone Joint Surg Br. 1984 Nov;66(5):720-4. doi: 10.1302/0301-620X.66B5.6501368.
Spondylolysis occurring after a spinal fusion is considered to result from operative damage to the pars interarticularis on both sides. Fourteen cases are reported, and compared with the 23 cases which have previously been published. The defects are usually recognised within five years of fusion, and usually occur immediately above the fusion mass. Other contributory causes may be: fatigue fracture from concentration of stress; damage and altered function of the posterior ligament complex; and degenerative disc disease immediately above or below the fusion. Fusion technique is critical, since virtually all cases occurred after posterior interlaminar fusions. This complication is easily overlooked in patients with recurrent back pain after an originally successful posterior spinal fusion.
脊柱融合术后发生的椎弓根峡部裂被认为是由于双侧关节突间部受到手术损伤所致。本文报告了14例病例，并与之前发表的23例病例进行了比较。这些缺损通常在融合术后五年内被发现，且通常发生在融合块上方紧邻处。其他促成因素可能包括：应力集中导致的疲劳骨折；后韧带复合体的损伤及功能改变；以及融合节段上方或下方紧邻处的椎间盘退变。融合技术至关重要，因为几乎所有病例均发生于后路椎间融合术后。在最初成功进行后路脊柱融合术后出现复发性背痛的患者中，这种并发症很容易被忽视。
