Olkaluuvärttinäluu

Olkaluuvärttinäluu is a Finnish term that translates to "humeroradial joint" in English. This refers to the articulation where the humerus bone of the upper arm meets the radius bone of the forearm. Specifically, it is the joint located on the lateral side of the elbow, allowing for the rotation of the forearm. The humerus has a capitellum, a rounded articular surface, which articulates with the head of the radius. This joint is a crucial component of the elbow, enabling supination and pronation movements, which are essential for many daily activities such as turning a doorknob or holding tools. The humeroradial joint is enclosed within the capsule of the elbow joint and is supported by ligaments, including the radial collateral ligament, which helps to stabilize the joint. Injury to this joint can result in pain, stiffness, and limited range of motion in the elbow and forearm. Conditions such as osteoarthritis or fractures of the radial head can affect the humeroradial joint.