Clinical Assessment, Causation, and Diagnostic Uncertainty in Medico-Legal Reporting: Insights from Orthopaedic Surgeon Dr. Michael Dooley

Dr. Michael Dooley is an orthopaedic surgeon with three decades of medico-legal experience, predominantly practicing at St Vincent's Public Hospital in Melbourne. His extensive background includes 15 years as the orthopaedic surgeon to Port Phillip Prison, providing him with unique insights into patient management across diverse and challenging contexts. On the first episode of Medico-Legal Mastery, Dr. Dooley addresses fundamental issues in medico-legal assessment: the hierarchy of evidence in diagnosis, the management of diagnostic uncertainty, and the principled approach to establishing causation.

Clinical assessment vs imaging: which carries more weight?

A central tenet of Dr. Dooley's approach is the prioritisation of clinical assessment history and examination over imaging findings.

"My weight is on the clinical assessment: history and examination," Dr. Dooley explained to host Jess Marshall.

While straightforward cases involving acute trauma with correlating radiographic evidence present few diagnostic challenges, the complexity arises in cases where subjective symptoms appear disproportionate to objective findings. Dr. Dooley offers the example of a patient reporting persistent back pain following a workplace incident three years prior, with imaging demonstrating age-appropriate degenerative changes in the lumbar spine.

In such cases, the radiographic findings are noted as demonstrating degenerative change consistent with the patient's age, but the imaging does not adequately explain the reported intensity of ongoing pain or claimed functional disability. This approach acknowledges the imaging while appropriately weighing the clinical presentation and recognising the limitations of imaging in explaining subjective symptomatology.

Understanding pain beyond the physical injury

Dr. Dooley distinguishes between frank malingering which he considers rare and the more common phenomenon of a psychological response to injury that amplifies the pain experience.

"I think every physical injury is accompanied by a psychological reaction that will vary in its degree.”

When pain intensity appears disproportionate to the injury, Dr. Dooley typically attributes this to a significant psychological component rather than deliberate fabrication.

Dr. Dooley cites a clinical example of a patient who underwent four unsuccessful thumb operations, with a fifth being contemplated. In such circumstances, the expert's role extends beyond diagnosis to include guidance on the futility of additional intervention.

"You're actually trying to help the process to say, maybe enough's enough."

Diagnostic uncertainty and the importance of defensible opinions

Dr. Dooley identifies overconfidence in diagnosis as a primary pitfall in medico-legal reporting. His guiding principle: "Never say never, never say always."

This transparent approach - stating clearly when a definitive diagnosis cannot be made - is presented as professionally superior to formulating diagnoses that cannot be substantiated by clinical or investigative evidence.

The medico-legal expert must remain within the bounds of what can be justified on an evidence-based foundation, avoiding conclusions that extend beyond supportable clinical findings.

Establishing causation in medico-legal assessments

In linking injury to incident, Dr. Dooley emphasises the importance of a plausible mechanism of injury consistent with the diagnosed condition.

Clear mechanisms present little difficulty: an anterior cruciate ligament rupture following a twisting knee injury in sport, or an ankle sprain following inversion with an audible crack. The challenge lies in conditions with less specific mechanisms, particularly low back pain.

"The patient says, I sat for too long. My chair's not good at work. I sit awkwardly. I bent over and lifted and now I've got back pain. We all know that's consistent with potential strain or sprain of the back.”

The difficulty lies in distinguishing compensable injury from the common experience of transient mechanical back pain that resolves spontaneously. This requires careful consideration of the patient's history, the chronology of symptom development, and the consistency between the reported mechanism and the clinical presentation.

Clinical practice vs medico-legal assessment

While the diagnostic process remains fundamentally consistent across contexts, Dr. Dooley identifies key differences between clinical and medico-legal assessments during his discussion on the podcast.

The medico-legal assessment typically occurs after the clinical picture has stabilised. Treatment has usually been completed, and the patient's condition is static rather than evolving. The expert may be reviewing cases involving complications or treatment failures, but is less commonly managing diagnostic evolution in real time.

Dr. Dooley also notes the importance of managing pre-existing knowledge when conducting assessments. While documentation is reviewed, he limits his preliminary reading to general practitioner notes, avoiding detailed review of other expert reports that might bias his clinical assessment.

Managing challenging assessments and courtroom scrutiny

Patients undergoing medico-legal assessment may have been involved in the process for extended periods - sometimes 24 months or longer - and may present with frustration, hostility, or reluctance to engage.

Dr. Dooley's approach emphasises empathy combined with clear expectations:

"I think my role is that I've still got to see the patient when I think they're balanced and giving a good history, rather than just monosyllabic answers. So I do try and explain to them: I understand your frustration. Understand where you're at. I know you might not want to do that today, and perhaps I don't want to do that today, but this is our task. Let's work at it together."

When cooperation cannot be achieved, this is documented transparently in the report, with an offer to reassess if circumstances permit a more productive consultation in future.

Drawing on his experience providing expert witness testimony, Dr. Dooley emphasises the importance of measured, defensible positions during the Medico Legal Mastery episode.

"If you think that being in a courtroom is going to protect you from some dumb things, stupidity, being a bit of a smarty pants watch out, because the barrister's job is to make you look doubtful of your integrity." he cautions.

The expert witness must maintain respect, avoid overstatement, and ensure that all opinions can be justified through reference to clinical findings and evidence-based practice.

The medico-legal expert's role extends beyond diagnosis to include guidance on treatment futility, prognosis, and the appropriateness of proposed interventions.

Throughout, the standard remains consistent: professional opinions must be defensible, measured, and grounded in sound clinical and scientific principles.

The full interview with Dr Michael Dooley can be listened to below or find Medico-Legal Mastery wherever you get your podcasts.