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Ultrasound-guided arthrocentesis of the elbow: a posterior approach
Keith S Boniface1, Kunal Ajmera, Joanna S Cohen
1George Washington University Medical Center, Washington, DC.
Background:
Identification of fluid in the elbow joint by physical examination alone can be challenging. Ultrasound can assist in the diagnosis of elbow effusion, and guide aspiration of the effusion.
Objectives:
We illustrate the anatomy and ultrasound guidance technique of a posterior approach to elbow arthrocentesis using examples of normal and pathologic elbow joint ultrasound images.
Discussion:
The posterior distal humerus at the level of the olecranon fossa provides an excellent acoustic window into the joint space. This location also provides a safe path for the performance of ultrasound-guided arthrocentesis.
Conclusion:
Ultrasound-guided arthrocentesis of the elbow from a posterior approach is a helpful technique to guide the aspiration of the painful swollen elbow.