Abstract
The lumbar facet (zygapophyseal) joint has been considered to be a significant source of low back pain for almost a century. Ghormley was the first individual to describe “facet syndrome” which he defined as a lumbosacral pain with or without radiculopathy, occurring most often after a sudden twisting or rotary strain of the lumbosacral region [1]. Hirsch et al. [2] injected hypertonic saline in the region of the facet joints and produced low back pain in the sacroiliac and gluteal regions with radiation to the greater trochanter. This was confirmed by Mooney and Robertson [3], who performed intra-articular saline facet injections, producing a similar pain referral pattern, which was relieved by intra articular local anesthetic injection. Also, neck pain and headache were produced by cervical facet injection with hypertonic saline by Pawl [4].
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