Cervical spine and vertebrobasilar insufficiency VBI Background

Traditionally a series of movements or positions thought to test the integrity of the vertebrobasilar arteries have been advocated prior to manipulation or mobilisation of the cervical spine (Maitland 1986 Grant 1994a McKenzie 1990). Such cervical procedures have sometimes been associated with complications, very rarely of a serious nature, such as death or cerebrovascular accident. The aim of the test movements and certain direct questions is to try to identify patients for whom this type of...