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Other fractures of the body, are classified as open or closed. Because fractures that involve the teeth, by definition, communicate with the mouth this distinction is largely lost in mandible fractures. Condylar, ramus, and coronoid process fractures are generally closed whereas angle, body and parasymphsis fractures are generally open.
Most fractures here are caused by strokes (contusion or penetrating injuries). [2] Conservative management of minor fractures can lead to trismus (lockjaw) that can later only be corrected by removing the coronoid process. [1] For serious fractures, a surgery involving open reduction and internal fixation can have good outcomes. [1]
The coronoid process of the ulna is a triangular process projecting forward from the anterior proximal portion of the ulna. Structure
Bleeding from the fracture expands the joint capsule and is visualized on the lateral view as a darker area anteriorly and posteriorly, and is known as the sail sign. [8] Coronoid line - A line drawn along the anterior border of the coronoid process of the ulna should touch the anterior part of the lateral condyle of the humerus. If lateral ...
The posterior fat pad is normally pressed in the olecranon fossa by the triceps tendon, and hence invisible on lateral radiograph of the elbow. [3] When there is a fracture of the distal humerus, or other pathology involving the elbow joint, inflammation develops around the synovial membrane forcing the fat pad out of its normal physiologic resting place.
Olecranon fracture is a fracture of the bony portion of the elbow.The injury is fairly common and often occurs following a fall or direct trauma to the elbow. The olecranon is the proximal extremity of the ulna which is articulated with the humerus bone and constitutes a part of the elbow articulation.
The tuberosity of the ulna is a rough eminence on the proximal end of the ulna.It occurs at the junction of the antero-inferior surface of the coronoid process with the front of the body.
The coronoid fossa is smaller than the olecranon fossa and receives the coronoid process of the ulna during maximum flexion of the elbow. Coronoid fossa of the humerus Above the front part of the capitulum is a slight depression, the radial fossa , which receives the anterior border of the head of the radius, when the forearm is flexed.