Figure 20. Posteroanterior view of the left wrist. Sclerotic margins at the scaphoid waist fracture indicate the presence of a nonunion. Osteophytosis, cartilage loss, and remodeling are seen at ...

Distinguishing between these two conditions is important because they require different treatments. Other tests that may be used are an arthrogram (a type of detailed X-ray) and an ultrasound (which ...