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Joint Capsule of Elbow

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Last updated: Jul 18th, 2025
Joint Capsule of Elbow
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The joint capsule of the elbow has sides that are thickened by ulnar and radial collateral ligaments. The front surface of the capsule is reinforced by fibers from a muscle (brachialis) in the upper arm.

The three parts of the elbow joint include the humeroulnar, humeroradial, and proximal radioulnar joints. A common synovial membrane surrounds all of these.

The ligaments in the joint include the annular, ulnar collateral, and radial collateral ligaments.