On the medial-oblique projection of the foot, which structure is NOT demonstrated?

On the medial-oblique projection of the foot, which structure is NOT demonstrated?

• A. Intermetatarsal spaces
• B. Tarsal bones
• C. Intertarsal joints
• D. Ankle joint

Answer: (C)

In the medial oblique view of the foot, the foot is rotated to open up the spaces between the metatarsals and to reveal the midfoot bones like the navicular and medial cuneiform. This projection makes intermetatarsal spaces and the tarsal bones clearly visible, which is why those structures are demonstrated. However, the joints between tarsal bones (the intertarsal joints) don’t open up well in this angle because their margins stay overlapped by adjacent bones, so they aren’t clearly seen on this projection. The ankle joint isn’t the primary focus of this view, though you may see part of the hindfoot area; the key point is that intertarsal joints are not well demonstrated in this position.

In the medial oblique view of the foot, the foot is rotated to open up the spaces between the metatarsals and to reveal the midfoot bones like the navicular and medial cuneiform. This projection makes intermetatarsal spaces and the tarsal bones clearly visible, which is why those structures are demonstrated. However, the joints between tarsal bones (the intertarsal joints) don’t open up well in this angle because their margins stay overlapped by adjacent bones, so they aren’t clearly seen on this projection. The ankle joint isn’t the primary focus of this view, though you may see part of the hindfoot area; the key point is that intertarsal joints are not well demonstrated in this position.