What is the trochlea of the humerus?
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Anatomical terms of bone In the human arm, the humeral trochlea is the medial portion of the articular surface of the elbow joint which articulates with the trochlear notch on the ulna in the forearm.
What is the most common site of fracture in the humerus?
The most frequently fractured site of the humerus especially in elderly is the surgical neck which is an area of constriction distal to the tuberosities.
How do you fix a distal humerus fracture?
However, most distal humerus fractures need surgery. The surgery is usually done by making a cut at the back of the elbow and finding the bone. The broken bones are then put back in the right place and are fixed with metal plates and screws. The wound is closed with sutures or staples.
Where is the capitellum?
The capitellum, also referred to as the capitulum, is the lateral part of the humeral condyle that articulates with the radial head.
Where is the humeral trochlea?
elbow joint
In the human arm, the humeral trochlea is the medial portion of the articular surface of the elbow joint which articulates with the trochlear notch on the ulna in the forearm.
What is a trochlea fracture?
Isolated trochlea fractures are rare but are frequently encountered in complete articular fractures of the distal humerus involving both the trochlea and capitellum. The trochlea forms the articular surface of the medial column of the elbow and is responsible for allowing ulnohumeral flexion and extension.
What type of fracture is humeral trochlear fracture?
Fracture of the trochlea is usually associated with elbow dislocation and capitellar or medial condylar fracture [12]. Isolated fracture of the humeral trochlea is very rare.
What are the treatment options for trochlea fractures of the humerus?
As with other front-line fractures of the distal end of the humerus, such as the capitulum, we recommend open reduction and internal fixation for displaced fractures, with excision of the small osteoch … An isolated fracture of the trochlea is rare. The mechanisms generating this fracture are complex.
How rare is an isolated fracture of the trochlea?
Conclusion: An isolated fracture of the trochlea is rare. The mechanisms generating this fracture are complex.
What are the possible complications of operative fixation of humeral trochlea fractures?
Complications of operative fixation of humeral trochlea fractures include: Ulnar nerve neuropraxia (from prolonged intra-operative retraction of the nerve). Post-traumatic arthritis (from damage to articular surface at the time of injury or from malreduction of the articular surface).