Navicular hand8/10/2023 ![]() ![]() If the bone fragments are exactly in the right position, cast treatment, which may last as long as four to six months, is successful. Treatment of this broken bone is determined by the location of the fracture and the alignment of the bone. Unlike nearly all the other bones of the body, except the talus bone of the foot, the blood supply of the scaphoid bone enters the bone distally (closer to the hand) and travels proximally (towards the forearm.) The main blood vessel is commonly disrupted by the fracture and this slows the healing process of the fracture, and can even cause death of the proximal fragment of the bone known as osteonecrosis. ![]() The scaphoid bone has an uncommon blood supply. Serial X-rays, bone scans, and a MRI examination will confirm whether or not this important little bone is broken. For that reason, any wrist sprain occurring when an individual uses their hand to break a fall must be carefully scrutinized, in order not to miss the diagnosis. The diagnosis is complicated further because the fracture is often not visible on an X-ray taken shortly after the injury. Unlike a fracture of the radius, there is no immediate deformity of the wrist, causing this to be misdiagnosed as a simple sprain of the wrist. It happens when an individual uses their outstretched hand to break a fall. These fractures commonly occur in two wheeled sports such as motocross, BMX, and cycling. The carpal scaphoid, also known as the navicular bone is the most frequently fractured small bone of the wrist. ![]()
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