Diagnostic blocks: a truth serum for malingering

Area of Science:

• Pain Medicine
• Diagnostic Procedures

Background:

• Malingering is a behavior, not a diagnosis, lacking established diagnostic criteria.
• Existing guidelines for suspecting malingering do not differentiate from genuine chronic pain.
• Establishing a genuine source of pain can refute malingering claims.

Purpose of the Study:

• To explore the utility of controlled diagnostic blocks in assessing the authenticity of chronic pain complaints.
• To investigate how diagnostic blocks can differentiate genuine pain from malingering.
• To establish objective methods for resolving disputes about pain genuineness.

Main Methods:

• Utilizing controlled diagnostic blocks to identify genuine sources of pain in patients with unapparent causes.
• Analyzing patient responses to diagnostic blocks to confirm or refute pain authenticity.
• Applying diagnostic blocks in cases of spinal pain and complex regional pain syndromes.

Main Results:

• Positive responses to diagnostic blocks demonstrate genuine pain and refute malingering.
• Diagnostic blocks provide objective data to resolve disputes based on opinion.
• Negative responses do not rule out genuine pain if the source is not block-amenable.

Conclusions:

• Controlled diagnostic blocks offer an objective method to validate genuine pain complaints.
• This technique is particularly valuable for undiagnosed spinal pain and complex regional pain syndromes.
• Diagnostic blocks can definitively refute malingering when a genuine pain source is identified.