Chronic Pain Claims in Ontario: Proving an Invisible Injury and Winning Compensation

The Challenge of Litigating Invisible Injury

Chronic pain — persistent pain beyond the expected tissue healing period, typically more than three months — affects a significant proportion of motor vehicle accident survivors. Because it lacks objective radiographic evidence, insurers and defence counsel routinely characterize it as exaggerated, psychosomatic, or fabricated. Successful litigation requires a comprehensive, multi-disciplinary evidence strategy.

Recognized Diagnostic Categories

Chronic pain encompasses recognized conditions including: fibromyalgia syndrome, complex regional pain syndrome (CRPS), myofascial pain syndrome, and central sensitization disorder. Each carries established diagnostic criteria. A pain specialist, physiatrist, or rheumatologist who can explain these conditions and their pathophysiology to a judge or jury is a critical expert witness.

Functional Capacity Evaluation Evidence

A Functional Capacity Evaluation (FCE) by an experienced occupational therapist provides objective, performance-based measurement of physical abilities — independent of pain ratings or self-report. When internal consistency measures within the FCE are valid, this evidence is highly persuasive and difficult for the defence to discredit.

Credibility: The Deciding Factor

In chronic pain litigation, judicial credibility assessment frequently drives outcome. Consistent medical treatment, candid descriptions of good and bad days, honest functional reporting, and absence of internal inconsistencies are your strongest assets. Surveillance and social media are used specifically to exploit inconsistencies — live consistently and discuss all aspects of your presentation with your lawyer.