AOTrauma Webinar:  Why Do Patients Get Infection?

May 30, 2017 14:00 CET

Main Presenter: Olivier Borens, MD (Switzerland)
Chat Moderator: Stephen Kates, MD (USA)

Surgical site infections after trauma are debilitating and costly. They are feared by the surgeon and the patient alike. The incidence of this complication can be decreased by proper preoperative, intraoperative, and postoperative management.
The goal of this webinar is to present easy-to-use tools and strategies that will lead to a decrease in the incidence of infection.

More information and registration...


Executive Editor: Chris Colton

Authors: Pol Rommens, Peter Trafton

Humeral shaft

back to skeleton


Safe zones

Safe zone in the proximal third

Pins or screws are inserted from a lateral (alternatively from an anterolateral or posterolateral) direction through the deltoid muscle.

Avoid damage to the long biceps tendon.

The tips of the pins should just perforate the far cortex. If too deep, the tips can injure the medial neurovascular bundle.

Damage to the axillary nerve must be avoided. This nerve runs dorsolaterally around the humeral metaphysis, about 5 cm below the greater tuberosity.

(See also pin placement technique in external fixation procedure)


No safe zone in the middle third

Avoid pin placement in the middle third as the radial nerve, which is in close relationship with the dorsal diaphyseal cortex, can be damaged.


Safe zone in the distal third

Pins are inserted from a posterior (alternatively from a posterolateral or posteromedial) direction through the triceps muscle.

Avoid penetration of the olecranon fossa.

The tips of the pins or screws should just perforate the far cortex. Placement too deep can damage the median nerve and/or brachial artery.

v1.0 2006-09-14