Osteopathic Principles and Philosophy
Core concepts
Know the four tenets that anchor osteopathic reasoning: the body is a unit; structure and function are reciprocally interrelated; the body possesses self-regulatory and self-healing mechanisms; and rational treatment rests on these principles. Understand the historical lineage - Still's view of the body as a machine whose parts are interdependent, Littlejohn's integration of mechanics and physiology, and the modern biopsychosocial framing that keeps the tenets clinically usable.
Applying the tenets
Questions often present a clinical scenario and ask which tenet justifies a decision. Somatic dysfunction impairing lymphatic flow is a structure-function example; a patient's own recovery after removing a mechanical restriction illustrates self-regulation. Distinguish philosophy from technique: the tenets do not mandate any single method, and a question implying OMT is the only acceptable care is usually wrong.
Traps
- Treating the tenets as absolute claims of cure rather than organizing principles.
- Confusing the unity of the body with the idea that all disease is musculoskeletal.
- Overstating evidence: philosophy guides reasoning, it does not replace diagnosis.
- Mixing up founders and their specific contributions.
Rule of thumb
When a stem asks "which principle best explains this?", name the structural or functional link first, then the adaptive response, then the treatment implication - in that order.
Worked example
A patient with chronic ankle stiffness develops compensatory lumbar pain and reduced gait efficiency. The best answer is not "the ankle caused a disease" but that altered structure changed function and the body adapted regionally - a unit-level structure-function statement.