• Steven R Sabers, Scott R Ross, Brian E Grogg, and Tamara D Lauder.
• Department of Physical Medicine and Rehabilitation, Mayo Medical School, Rochester, MN 55905, USA.
• Arch Phys Med Rehabil. 2005 Sep 1;86(9):1767-71.

ObjectiveTo evaluate the success of fluoroscopically guided, contrast-enhanced lumbar zygapophyseal joint (Z-joint) aspiration and steroid injection combined with transforaminal epidural steroid injections (TFESIs) for the treatment of lumbar Z-joint cyst-induced radicular pain.DesignRetrospective case series with independent follow-up.SettingInstitutional, referral center.ParticipantsTwenty-three patients referred to a single provider for procedure-based management of radicular pain believed secondary to lumbar Z-joint cyst. Inclusion criteria consisted of lumbar radicular pain that was consistent with the level and side of the Z-joint cyst as a causative lesion.InterventionsEighteen patients were treated with a fluoroscopically guided, contrast-enhanced Z-joint aspiration and steroid injection at the level of the causative cyst coupled with a fluoroscopically guided, contrast-enhanced TFESI over the level of the presumably irritated spinal nerve.Main Outcome MeasuresPatient satisfaction, and whether or not surgery was performed.ResultsFifty percent of patients treated with the procedure had significant long-term benefit and avoided surgical intervention at an average follow-up of 9.9 months.ConclusionsFluoroscopically guided, contrast-enhanced spinal procedures as part of an aggressive nonsurgical treatment program are a safe and effective alternative to surgical intervention for lumbar Z-joint cyst-induced radicular pain.

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