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...

Infection

Executive Editor: Peter Trafton

Authors: Rahul Banerjee, Peter Brink, Matej Cimerman, Tim Pohlemann, Matevz Tomazevic

Pelvic ring - Stable ring, ORIF; apophyseal avulsion fracture

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Glossary

1 Introduction top

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These fractures are most common in young active people. They do not compromise the stability of the pelvic ring and are mainly treated conservatively with guided physiotherapy.

Indication for operative treatment is displacement larger than 1 – 2 cm, especially in young active athletes.

The most common avulsion fractures involve the anterior and inferior iliac spine. More rarely the symphysis and ischial tuberosity. The dislocation of the avulsed fragment always follows the direction of muscle contraction.

All these avulsions are treated in a similar fashion.

2 Reduction top

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Preparation of fracture site

The avulsed apophysis is exposed through an overlying incision. Typically, the anterior portion of an anterior iliac approach is used for anterior superior or inferior iliac spines. For an ischeal apophyseal avulsion, the patient is placed prone. A transverse sub-gluteal incision (along the gluteal crease) can be used to approach the site from its medial side. The sciatic nerve and posterior femoral cutaneous nerve are lateral and deeper than the tuberosity, and can be avoided or exposed if necessary.

The avulsion fracture is exposed with sharp and blunt dissection. Its muscle attachments are preserved. Displacement is increased if necessary with a lamina spreader or retractor, so the fracture surfaces can be cleaned of debris, interposed periosteum, and ligaments.


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Reduction

Reduction is performed using a small pointed reduction forceps together with a K-wire as a joystick.


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Temporary fixation is achieved by further insertion of the K-wire.

3 Fixation top

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Preparation of fracture site

The fragment is fixed by insertion of a 3.5 mm half threaded cancellous screw inserted as a lag screw. A plastic pointed washer is used.

The screw should be inserted through the muscle attachment perpendicular to the fracture line.


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In larger fragments (such as the ischial tuberosity), additional screws may be inserted.


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X-rays

After completion of internal fixation, confirm the final reduction and hardware position intraoperatively by AP, inlet and outlet radiographic imaging.

v1.0 2015-12-10