In the context of navicular and midfoot anatomy, which bone is the focus of Lawson's classification?

• A. Navicular bone
• B. Talus
• C. Calcaneus
• D. Cuboid

Answer: (A)

Lawson's classification is a system for categorizing fractures of the navicular bone in the midfoot. The navicular sits in the center of the foot, linking the talus above to the cuneiforms ahead, and it helps maintain the medial arch. Classifying navicular fractures by pattern and displacement guides treatment decisions because these injuries have specific considerations, including how they affect the blood supply and joint surfaces. Because the focus is on the navicular bone within the midfoot, that bone is the one Lawson's classification addresses. The other bones mentioned—talus, calcaneus, and cuboid—are part of the broader foot complex but are not the subject of this navicular-specific classification.