Swelling and tenderness of the elbow

Introduction Intercondylar fractures of the humerus, severe pain after elbow joint trauma, extensive tenderness, obvious swelling, may be accompanied by subcutaneous congestion. It is a fracture that occurs between the tibia and the iliac crest and its adjacent parts. When the elbow joint is in the flexion position, it directly hits the ground, and may also be caused by the upward impact of the olecranon. The ulnar olecranon has a triangular cross section. When the violent conduction of the part, the olecranon olecranon acts like a wedge hitting the inner and outer trochlear grooves, causing separation between the two jaws, and the lower end of the tibia is displaced forward.

Cause

Both direct and indirect violence can cause an intercondylar fracture of the humerus.

Pathogenesis:

When falling, the elbow joint is in the extended position, the palm and the human body are gravity upwards, and are transmitted downwards and concentrated on the humerus, and the violence acts on the ulna. The upward impact causes the internal and external iliac crest to split and separate to the sides, causing a fracture. The proximal end of the fracture is displaced forward, and the distal end of the fracture is split into two or more pieces and displaced to the rear.

When the elbow joint is in the flexion position, it directly hits the ground, and may also be caused by the upward impact of the olecranon. The ulnar olecranon has a triangular cross section. When the violent conduction of the part, the olecranon olecranon acts like a wedge hitting the inner and outer trochlear grooves, causing separation between the two jaws, and the lower end of the tibia is displaced forward.

an examination

Related inspection

CT examination of bone and joint soft tissue, Jakarta test, extensor tension test, elbow test, elbow posterior triangle examination

After elbow joint trauma, there is severe pain, extensive tenderness, obvious swelling, and may be accompanied by subcutaneous congestion. In patients with severe fracture displacement, the transverse diameter of the lower end of the humerus may be widened, and those with overlapping overlap may have short deformity of the upper arm. The elbow joint is semi-extended, the forearm is pre-rotation, the triangular bone structure of the elbow is disordered, and the fracture block can be touched, and the bone rub is obvious. Sometimes nerve and blood vessel damage can be combined, and attention should be paid when checking.

History of trauma, severe pain in the elbow after injury, extensive tenderness, and obvious swelling. The elbow is in a semi-extension position, the forearm is pre-rotated, and the triangular bone structure of the elbow is disordered, and the fracture block can be touched, and the bone rubbing is obvious. The X-ray of the lateral elbow can confirm the diagnosis and show the type of fracture and the degree of displacement.

Differential diagnosis

Severe pain in the elbow, tenderness and swelling: localized swelling, pain and tenderness of the clavicle fracture are more obvious.

Elbow pain: external humeral epicondylitis, iliac crest nerve vascular bundle is embedded in the elbow can cause elbow pain.

Elbow sprain: The elbow sprain is mostly under the action of external force, causing abnormal activity of the elbow, causing damage to the lateral and lateral collateral ligament of the elbow.

Abdominal elbow swelling and dysfunction: half of the radial head fracture is also called Hahn-steinthal fracture, symptoms and signs: elbow lateral swelling, elbow flexion and extension dysfunction.

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