Some surgical procedures require extreme positioning to ensure that the targeted surgical area is accessible to the surgeon and the surgical team. Extreme positioning requires extreme positioning devices, manufactured to meet the need for surgical access. Unfortunately, the devices and positions needed for optimal surgical access can increase the risk for an interoperative medical device related pressure injury. The resultant pressure injury generally mirrors the pattern or shape of the device. One common position that fits the extreme high-risk description is the Lateral Decubitus Position. This position is commonly used during surgery requiring access to the thorax, retroperitoneum, or hip. The patient is lying on the nonoperative side with careful positioning of the extremities.

The following best practices help when positioning the patient in a lateral position.

1. The lower extremities are carefully padded between the knees and below the dependent knee to avoid excessive external pressure over bony prominences. The dependent lower extremity is somewhat flexed to avoid stretch or compression of the lower extremity nerves.
2. Upper extremities are placed in front of the patient with neither arm abducted more than 90 degrees to prevent brachial plexus injury. An axillary roll should be placed below the axilla to prevent compression of the brachial plexus and axillary vascular structures.
3. The dependent upper extremity is flexed at the shoulder and slightly flexed at the elbow and secured on a padded arm board with padding under bony prominences. Invasive arterial monitoring should be placed in the dependent arm to better detect compression of the axillary vascular structures.
4. The non-dependent upper extremity is flexed at the shoulder and slightly flexed at the elbow. The upper extremity is often secured with a suspended armrest with care not to abduct the arm more than 90 degrees and to pad the bony prominences.
5. The head and neck are maintained in a neutral position to prevent lateral rotation and stretch injury to the brachial plexus. Care must be given to avoid folding or rolling the dependent ear or undue external pressure on the dependent eye.

We have discussed positioning the patient safely in the lateral decubitus position. Now, let’s talk about lateral positioning devices and the risk they bring to medical device related pressure injuries. Medical device-related pressure injuries result from using medical devices, equipment, furniture, and everyday objects in direct contact with skin. The increased external mechanical load, leads to soft tissue damage. There are different types of positioning devices for the lateral position, and each are structurally different and are used differently based on the surgical need. Let’s look at lateral hip surgery.

Lateral Positioning Devices

One of the fundamental functions of the lateral hip surgical positioning device is to rigidly secure patients into the position throughout surgery. Therefore, a Peg Board is often used for lateral hip surgery. The pegboard comes with numerous peg holes allowing the surgeon to select which holes match the size of the patient. The surgical pegs come in different sizes for versatility, and the pegs lock into and fit perfectly with the surgical pegboards to prevent any motion during operation. When using the peg board or any other rigid positioning device, the risk for medical device pressure injury increases. This increase is due to the tissue compression that restricts blood flow and disrupts cellular integrity.

Pressure injury risk mitigation takes pre-planning and critical thinking. When using the peg board, it is important to protect the bony prominences, and cover the device and pegs themselves to decrease the medical device pressure on the patient. A great solution to the harsh pegboard is, The Action® Overlay and Post Pad Set . This AKTON polymer overlay helps to protect skin integrity in the high-pressure lateral position, reducing pressure on fragile bony prominences. The post pads have a hook and loop attachment to universally fit your morph or peg board sets.

Protect your patients from medical device pressure injuries. Plan for high-risk positions and implement evidence-based interventions to provide them with the safe outcome that they deserve.

Resources

Crit Care Nurs Clin North Am. 2020 Dec;32(4):533-542.doi: 10.1016/j.cnc.2020.08.004. Epub 2020 Oct 7.
Medical Device-Related Pressure Injuries
Anatomy, Patient Positioning  https://www.ncbi.nlm.nih.gov/books/NBK513320/
Maggie Armstrong; Ross A. Moore.

B9011-000

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