The elbow is a complex hinge joint formed by the articulation of three bones: the humerus, radius, and ulna. It allows for flexion and extension as well as pronation and supination of the forearm. The joint is stabilized by a network of ligaments, including the ulnar collateral, radial collateral, and annular ligaments, which provide structural support and maintain alignment. Surrounding muscles, such as the biceps brachii, triceps brachii, and the forearm flexors and extensors, facilitate movement and contribute to the joint’s stability. The intricate anatomy of the elbow is crucial for its wide range of motion and functional capabilities.
Elbow sonoanatomy involves the detailed ultrasound assessment of the elbow’s complex structures, including bones, muscles, tendons, ligaments, and neurovascular components. High-resolution ultrasound imaging provides a non-invasive, dynamic evaluation of the elbow joint, allowing for real-time visualization of the bony landmarks such as the humerus, radius, and ulna. Key soft tissue structures such as the common extensor and flexor tendons, the ulnar collateral ligament, and the olecranon bursa are clearly delineated. Additionally, ultrasound facilitates the assessment of neurovascular structures like the ulnar nerve in the cubital tunnel,median nerve and the radial nerve. This modality is invaluable for diagnosing pathologies like tendonitis, ligament tears, and nerve entrapments, offering a comprehensive understanding of the elbow’s intricate anatomy.
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