Pressure ulcers and deep tissue injury: a bioengineering perspective

Area of Science:

• Biomedical Engineering
• Rehabilitation Science
• Materials Science

Background:

• Wheelchair users are at significant risk for deep tissue injury (DTI).
• Current methods relying on interface pressure are inadequate for predicting DTI.
• A need exists for alternative assessment strategies to evaluate internal tissue responses.

Purpose of the Study:

• To highlight the limitations of interface pressure in predicting DTI for wheelchair users.
• To advocate for the development of novel assessment approaches.
• To emphasize the importance of monitoring internal mechanical stresses and deformations.

Main Methods:

• Review of existing literature on DTI in wheelchair users.
• Analysis of the biomechanical factors contributing to DTI.
• Discussion of potential alternative monitoring techniques.

Main Results:

• Interface pressure alone does not accurately predict the onset of DTI.
• Internal mechanical stresses and deformations are critical factors in DTI development.
• Current assessment tools lack the capability to easily monitor these internal factors.

Conclusions:

• Predicting and preventing DTI in wheelchair users requires moving beyond surface pressure measurements.
• Future research should focus on developing accessible technologies to monitor internal tissue mechanics.
• Effective DTI management necessitates a comprehensive understanding of tissue deformation and stress.