Pagni Carlo Alberto, Lanotte Michele, Canavero Sergio
Institute of Neurosurgery, University of Turin, TurinItaly Department of Neurosurgery C.T.O. Hospital, TurinItaly.
Pain. 1993 Sep;54(3):323-327. doi: 10.1016/0304-3959(93)90032-K.
Anesthesia dolorosa has been considered an infrequent complication of spinal posterior rhizotomy. We reviewed the data of all patients who underwent rhizotomy between 1962 and 1972 (15 cases). Thirteen were affected by cancer and 2 by non-neoplastic conditions. Eight developed a typical deafferentation pain (i.e., anesthesia dolorosa) (53%) while 3 who were found to have a brain (frontal 2; parietal 1) metastasis did not. Anesthesia dolorosa developed 1.5-8 months after rhizotomy. We conclude that anesthesia dolorosa following rhizotomy is more frequent than usually stated and that rhizotomy should be restricted to patients with a less than 3-month life expectancy.
痛性感觉缺失一直被认为是脊髓后根切断术的一种罕见并发症。我们回顾了1962年至1972年间接受后根切断术的所有患者（15例）的数据。其中13例患有癌症，2例患有非肿瘤性疾病。8例出现了典型的去传入性疼痛（即痛性感觉缺失）（53%），而3例发现有脑转移（额叶2例；顶叶1例）的患者则未出现。痛性感觉缺失在切断术后1.5至8个月出现。我们得出结论，切断术后的痛性感觉缺失比通常所说的更为常见，并且后根切断术应仅限于预期寿命不足3个月的患者。
