Bogduk Nikolai
University of Newcastle, Newcastle Bone and Joint Institute Royal Newcastle Centre, PO Box 664J, Newcastle, NSW 2300 Australia.
F1000 Med Rep. 2010 Aug 9;2:57. doi: 10.3410/M2-57.
Diagnostic blocks are used to identify patients with back pain stemming from their lumbar zygapophysial joints. Single, diagnostic blocks have an unacceptably high false positive rate. As well, comparative local anaesthetic blocks lack validity because the prevalence of the condition is low. Relying on 50% relief following single-diagnostic blocks does not provide a valid diagnosis. Placebo-controlled blocks are the only available valid means of establishing a diagnosis of lumbar zygapophysial joint pain.
诊断性阻滞用于识别因腰椎关节突关节引起背痛的患者。单次诊断性阻滞的假阳性率高得令人无法接受。此外,比较性局部麻醉阻滞缺乏有效性,因为这种疾病的患病率较低。依靠单次诊断性阻滞后50%的疼痛缓解并不能提供有效的诊断。安慰剂对照阻滞是确立腰椎关节突关节疼痛诊断的唯一有效方法。