Surgical neck

Surgical Neck of the Humerus

The Surgical neck of the humerus is a constriction located at the distal (far) end of the humerus, the long bone of the upper arm. It is a significant anatomical landmark due to its vulnerability to fractures and its proximity to important neurovascular structures.

Anatomy

The surgical neck of the humerus is located just below the tubercles of the humerus, where the bone's rounded head narrows into the shaft. It is named the "surgical" neck due to the frequency of fractures at this location, which often require surgical intervention.

Clinical Significance

Fractures

Fractures of the surgical neck of the humerus are common, particularly in older individuals with osteoporosis. These fractures often result from falls onto an outstretched hand.

Neurovascular Structures

The surgical neck of the humerus is in close proximity to the axillary nerve and the posterior circumflex humeral artery. Damage to these structures during a fracture can lead to significant complications, including loss of arm movement and sensation.

Treatment

Treatment of surgical neck fractures depends on the severity and type of fracture. Non-displaced fractures can often be managed with conservative treatment, such as immobilization in a sling. Displaced fractures may require surgical intervention, such as open reduction and internal fixation (ORIF).

See Also

• Anatomical neck of the humerus
• Humerus
• Fracture