Article: Ultrasound-Guided Lumbar Medial Branch Block in Obese Patients: A Fluoroscopically Confirmed Clinical Feasibility Study

Background and Objectives: Obesity is a major risk factor for lower back pain. Fluoroscope-guided medial branch block is a common diagnostic tool in these patients. Although approach to the facet joint guided by ultrasound has been demonstrated successfully in lean patients, its success in obese patients is unknown. We therefore evaluated the success rate of real-time ultrasound approach in obese patients in a clinical feasibility study.

Methods: We performed a total of 84 medial branch blocks in 20 obese patients (body mass index, >30 kg/m^sup 2^) using ultrasound. We studied the success rate, measured depth to the facet joint, and assessed radiation dose and pain relief.

Results: Our ...

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