Skeletal radiology
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The majority of lumbar facet joint cysts (LFJCs) are located in the spinal canal, on the medial aspect of the facet joint with characteristic diagnostic features. When they migrate away from the joint of origin, they cause diagnostic problems. ⋯ Awareness that spinal lesions identified at MRI and CT could be due to migrating facet joint cyst requires a high level of suspicion. The identification of the appositional contact of the cyst and the facet joint needs to be actively sought in the presence of degenerative facet joints.
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To describe the technique of obturator nerve block under CT guidance via the posterior approach, and to evaluate the efficacy of the procedure in the short-term and mid-term relief of chronic hip pain. ⋯ In patients with hip pain refractory to conventional pain control measures, CT-guided obturator nerve block can provide relief from pain in the short to medium term. The posterior approach offers safe, reliable and effective access to the nerve, in a procedure which is well-tolerated by the patient.