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Wheeless' Textbook of Orthopaedics

External Fixation of the Humerus



- See: EBI Fixator - Insertion Technique

- Mid-Shaft Humeral Fractures:
    - consider screw placement in the short frx segment first, since the longer
          fragment will be more forgiving for shorter or longer screw placement;
          - take care to avoid injury to axillary nerve proximally and the radial nerve distally;
    - proximal pin placement:
          - majority of neurvascular structures are located medially;
          - pins are placed thru anteriolateral fibers of the deltoid;
          - take care to avoid injury to axillary nerve proximally;
    - mid-shaft:
          - pins need to be placed anterolaterally to avoid the radial nerve;
          - consider making a large enough incision inorder to visualize the radial nerve (and the pin can then be placed
                  either in front of or behind the radial nerve - depending on which is easier);
          - once the radial nerve has been identified, more distal pins can be inserted without seeing the radial nerve;
    - distal pin placement:
          - avoid injury to radial nerve by using open surgical technique (especially for pins placed more than 4 cm from epicondyle);
          - first pin is placed into lateral epicondyle (in a posterior oblique direction), w/ care to avoid insertion into olecranon fossa;
          - pins placed proximal to the epicondyles are inserted in a medial oblique direction (anterior to the radial nerve);

- Distal Third Fractures: (Holestein Lewis)
    - 3-4 pins (4 mm half pins) are placed posterior thru the triceps;
    - in distal fractures, a transfixation pin may be necessary;
          - pins are inserted from medial to lateral, the ulnar nerve is palpated, and the elbow is flexed
                  to 60 deg inorder to avoid injury to the ulnar nerve;
          - pins should be inserted parallel to the joint line;



External fixation of high-energy upper extremity injuries.

Transcutaneous reduction and external fixation of displaced fractures of the proximal humerus.

Transcutaneous reduction and external fixation of displaced fractures of the proximal humerus. A controlled clinical trial.

External fixation of proximal humerus fracture. Clinical and cadaver study ³ of pinning technique.

External fixation of displaced fractures of the proximal humerus. Technique and preliminary results.

External fixation in the upper extremity. [Review]

Management of Concomitant Ipsilateral Fractures of the Humerus and Forearm.
      Rogers JF, Bennet JB, Tullos HS;   JBJS 66-A 552-556, 1984.

Gunshot Fractures of the Humeral Shaft Treated with External Fixation.
      TF Wisniewski and MJ Radziejowski.   J. Orthop. Trauma. 1996. Vol 10. No 4. p 273-278.

External fixation of the fracture of the humerus: a review of 164 cases.
      M Hinsenkamp et al.   Orthopaedics. Vol 7. 1309-1314. 1984.











Original Text by Clifford R. Wheeless, III, MD.