Gray Ramus Communicans Nerve Block for Acute Pain Control in Vertebral Compression Fracture

Area of Science:

• Pain Management
• Neurology
• Orthopedic Surgery

Background:

• Acute pain from vertebral compression fractures (VCFs) is challenging to manage.
• Current treatments include braces, surgery, and injections, with varying efficacy.
• The gray ramus communicans nerve block (GRNB) is a potential alternative for VCF pain relief.

Purpose of the Study:

• To evaluate the efficacy of GRNB for acute pain control in VCF patients.
• To assess the duration of pain relief provided by GRNB.
• To identify risk factors associated with GRNB treatment failure.

Main Methods:

• A retrospective cohort study included 63 patients with thoracolumbar VCFs (T10-L5).
• GRNB was performed within one week of trauma.
• Patients were assessed using Visual Analog Scale (VAS), Oswestry Low Back Disability (ODI), and Roland-Morris Disability Questionnaire (RDQ) at multiple follow-up points.

Main Results:

• Motion VAS scores improved significantly up to three months post-GRNB.
• Resting VAS scores showed improvement for only three days.
• Lower bone marrow density (BMD) was the sole significant predictor of GRNB failure (p=0.0038).

Conclusions:

• GRNB provides sustained pain relief for VCFs, particularly for motion-related pain, up to three months.
• Lower BMD is a critical risk factor for GRNB failure.
• GRNB is a viable option for acute VCF pain management, with BMD as a key consideration for patient selection.