Prosthetic profile of the amputee questionnaire: validity and reliability

Area of Science:

• Rehabilitation Medicine
• Prosthetics and Orthotics
• Clinical Psychology

Background:

• Assessing prosthetic use in lower extremity amputees is crucial for rehabilitation outcomes.
• Existing tools may not fully capture the multifaceted nature of prosthetic integration.
• The Prosthetic Profile of the Amputee (PPA) was developed to address this need.

Purpose of the Study:

• To evaluate the psychometric properties of the Prosthetic Profile of the Amputee (PPA) questionnaire.
• To determine the reliability and validity of the PPA for use with lower extremity amputees.
• To establish the PPA as a dependable measure for clinical and research settings.

Main Methods:

• The PPA questionnaire was administered to 89 adults with lower extremity amputations on two separate occasions.
• Test-retest reliability was assessed using data analysis to measure repeatability.
• Construct validity was examined by comparing PPA scores with the Reintegration to Normal Living (RNL) index.

Main Results:

• The PPA demonstrated strong test-retest agreement, indicating high repeatability and reliability.
• Analysis supported the construct validity of the PPA, showing convergence with analogous RNL constructs.
• Evidence of discrimination between related and unrelated constructs further supported validity.

Conclusions:

• The Prosthetic Profile of the Amputee (PPA) questionnaire is a reliable and valid instrument.
• The PPA is suitable for both clinical follow-up and research purposes in amputee populations.
• Findings support the use of the PPA to measure factors related to prosthetic use and actual prosthesis utilization.