FRACTURA OLECRANON PDF

Due to the proximity of the olecranon to the ulnar nerve, the injury and swelling may cause numbness and tingling at the fourth and fifth fingers. Typically they are caused by direct blows to the elbow e. Trauma to the elbow often results in comminuted fractures of the olecranon. Indirect trauma: by falling and landing with an outstretched arm.

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Structure[ edit ] It is situated at the upper proximal end of the ulna , one of the two bones in the forearm. When the hand faces forward supination the olecranon faces towards the back posteriorly. It is bent forward at the summit so as to present a prominent lip which is received into the olecranon fossa of the humerus in extension of the forearm.

Its base is contracted where it joins the body and the narrowest part of the upper end of the ulna. Its posterior surface, directed backward, is triangular, smooth, subcutaneous, and covered by a bursa. Its superior surface is of quadrilateral form, marked behind by a rough impression for the insertion of the Triceps brachii ; and in front, near the margin, by a slight transverse groove for the attachment of part of the posterior ligament of the elbow-joint.

Its anterior surface is smooth, concave, and forms the upper part of the semilunar notch. Its borders present continuations of the groove on the margin of the superior surface; they serve for the attachment of ligaments, viz. From the medial border a part of the flexor carpi ulnaris arises; while to the lateral border the anconeus muscle is attached.

Clinical significance[ edit ] Fractures of the olecranon are common injuries. An olecranon fracture with anterior displacement of the radial head is called a Hume fracture.

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FRACTURA DEL OLÉCRANON | LESIONES DE CODO

This type of fracture is often caused by a direct blow to the elbow or from landing on your elbow. Symptoms of an olecranon fracture may include pain, tenderness, swelling and the inability to straighten the elbow or pain while straightening the elbow. Depending on the degree and type of fracture, treatment may include the use of a sling or surgery to help hold the bones in place while they heal. What is an olecranon fracture? The elbow joint is made up of three bones, the humerus upper arm bone , ulna first of two forearm bones on pinky side and radius second of two forearm bones on thumb side and is held together by ligaments, muscle and tendons. It bends and straightens like a hinge, but it is also important for rotation of the forearm; that is, the ability to turn our hands up like accepting change from a cashier or down like typing or playing piano.

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Olecranon Fractures

Structure[ edit ] It is situated at the upper proximal end of the ulna , one of the two bones in the forearm. When the hand faces forward supination the olecranon faces towards the back posteriorly. It is bent forward at the summit so as to present a prominent lip which is received into the olecranon fossa of the humerus in extension of the forearm. Its base is contracted where it joins the body and the narrowest part of the upper end of the ulna. Its posterior surface, directed backward, is triangular, smooth, subcutaneous, and covered by a bursa.

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