The name scaphoid stands both for a bone in the hand and a bone in the foot. In order to keep the confusion small, the medical term is Os Scaphoideum and Os Naviculare, whereby the Scaphoid is the bone in the hand and the Os Naviculare is the bone in the foot.
The scaphoid in the hand
The scaphoid is one of the eight bones that form the carpus. It is located between the thumb and the radius and is the largest of the carpal bones. The adjacent bones of the scaphoid are: The scaphoid can be palpated through the skin of the inner surface because it has a small extension.
The most common fractures of the carpal bones affect the scaphoid. The most common is a fall in which you support yourself with your hand. Often such a fracture is not noticed at first, which can later lead to painful arthrosis.
Even with proper treatment, it sometimes grows together poorly. This is because the blood vessel supplying the bone is torn off and can no longer supply the bone.
- The moon leg (Os lunare)
- The small square leg (Os trapezoidum)
- The large square leg (Os trapezium)
- The capitate bone (Os capitatum)
The scaphoid in the foot
The scaphoid in the foot is also called Os naviculare in medicine. This can sometimes lead to confusion as the scaphoid in the hand was also formerly called Os Naviculare. The scaphoid is a relatively short bone and is part of the tarsal.
The adjacent bones are: It lies on the side of the big toe under the Os cuneiforme one. A fracture of the scaphoid in the foot is much less common than a fracture of the scaphoid in the hand.
- The anklebone (talus)
- The heel bone (calcaneus)
- The sphenoid bones (Os cuneiforme I & II & III)
- The cuboid bone (Os cuboideum)
