Lateral cuneiform

The third cuneiform, or external cuneiform, is of intermediate size, and is also known as the lateral cuneiform. The lateral cuneiform is located between two other cuneiform bones that are all wedge-shaped. The front row of the tarsal bones is occupied by the lateral cuneiform, falling between the second cuneiform and cuboid, along with the navicular bone and metatarsal bone. There are two lateral cuneiform bones, both of which are found in the ankle region of the human body. This bone works to support the body while playing an important role in motion. This bone is found near the outside of the foot, more so than the other cuneiform bones. It is located at the base of the third metatarsal bone. The fracture of this bone is a rare injury, since the bone is relatively small. Some X-rays may have difficulty spotting fractures or breaks of the lateral cuneiform bone due to the small size and rarity of cases of injury. If this bone is misplaced or injured frequently it can lead to post-traumatic arthritis.
Written and medically reviewed by the Healthline Editorial Team
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In Depth: Lateral cuneiform

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