Zygapophysial arthropathy. Intervertebral apophyseal joint arthropathy.

Normal saline injections into appropriate zygapophysial joints were carried out on low back pain suffers to reproduce the pain. Patients were selected on certain defined clinical criteria for inclusion to this pilot study. Only five out of ten patients reported accurate pain reproduction and these were thought to suffer from zygaphophysial arthropathy. It is argued that recognition of this condition will influence its management.