Acute locked facet syndrome and its treatment by manipulation under local periarticular anesthesia--Part I: Clinical perspective and pilot study proposal.

The clinical features of prolapsed intervertebral disc and facet joint pain are described and the condition referred to as "acute locked facet joint syndrome" is differentiated. Treatment by manipulation, with and without epidural or general anesthesia are considered, and a clinical trial of manipulation under local periarticular anesthesia is proposed.