Tissue-interface pressures on three different support-surfaces for trauma patients.

Area of Science:

• Biomedical Engineering
• Trauma Care Research

Background:

• Trauma patients require specialized support surfaces to prevent pressure-related injuries.
• Existing support surfaces may exert high tissue-interface pressures, risking ischemia.

Purpose of the Study:

• To compare tissue-interface pressures and comfort levels across three distinct support surfaces for trauma patients.
• To identify the most effective support surface in mitigating pressure-related risks.

Main Methods:

• Quantitative measurement of tissue-interface pressures between the body and support surfaces (semi-soft overlay, vacuum mattress, spine board).
• Inclusion of 20 healthy volunteers to standardize pressure measurements at key anatomical points (scapulae, sacrum, heels).
• Subjective comfort assessment using a 10-point visual analog scale.

Main Results:

• All tested support surfaces exhibited high, potentially ischemic tissue-interface pressures.
• Spine boards generated the highest pressures, exceeding 170 mmHg, and received the lowest comfort scores.
• Spine boards failed to support the natural lumbar lordosis, indicating poor anatomical adaptation.

Conclusions:

• Current support surfaces, including spine boards, pose a significant risk of ischemic pressure injuries in trauma patients.
• There is a critical need for the development of novel support surfaces that optimize pressure distribution and enhance patient comfort.
• Improved support surface design is essential for better outcomes in trauma patient management.