作者曾报道过全美10位耳科医师施行的96例后壶腹神经切除术治疗壶腹嵴顶石症,92%解除了头位性眩晕。1983年吕月为庆祝Schuknecht在耳科学的成就而召开的“耳组织病理学及其临床意义”的学术讨论会上,作者进一步论述了顶石症和后壶腹神经切除术问题。沉着于嵴顶中的变性耳石团使后半规管壶腹嵴顶对重力敏感这一假说已得到实验与临床的支持。但有两种现象对后半规管壶腹嵴在产生头位性眩晕中所起的作用 The authors have reported 96 cases of posterior amputation of apocynoneuria treated by 10 physicians in the United States and 92% of patients with vertigo. In 1983 Lu Yuesu celebrated Schuknecht’s achievements in otology and held a seminar on “Auris Histopathology and Its Clinical Significance”, the authors further discussed the problems of athyroposis and pos ampullary resection. The hypothesis that the degenerated otoliths settled in the crest make the ampulla of the posterior semicircular canals sensitive to gravity has gained experimental and clinical support. However, there are two phenomena on the posterior semicircular canal ampulla ridges in the production of vertebral head dizziness