Optimization and standardization of technique for fluoroscopically guided suprascapular nerve blocks

Area of Science:

• Radiology
• Pain Management
• Anatomy

Background:

• Suprascapular nerve blocks are crucial for managing shoulder pain.
• Standardizing fluoroscopic guidance is essential for successful nerve blocks.

Purpose of the Study:

• To standardize fluoroscopically guided suprascapular nerve block technique.
• To optimize patient positioning and identify imaging predictors for suprascapular notch visibility.

Main Methods:

• Evaluated 155 patients undergoing suprascapular nerve block.
• Assessed the impact of arm position and four key imaging features on notch visualization.
• Utilized statistical analysis including logistic regression and ROC curves.

Main Results:

• The "arm up" position significantly increased suprascapular notch visualization (91% vs 47%) and reduced fluoroscopy time.
• Four identified imaging features demonstrated high positive predictive values (91-95%) for notch visibility.
• Concurrent visualization of multiple features improved diagnostic accuracy (AUC 0.870).

Conclusions:

• Patient arm positioning and optimized imaging features enhance the reliability of fluoroscopic suprascapular nerve blocks.
• Standardized technique allows for confident nerve block performance.