Scaphoid Osteonecrosis

This patient previously had a fracture of the scaphoid waist. This plain film of the scaphoid shows sclerosis of the proximal pole in keeping with osteonecrosis.

Proximal pole osteonecrosis can be classified radiographically as:
stage 1: patchy areas of radiodensity of proximal pole
stage 2: involvement of entire proximal pole
stage 3: carpal collapse

According to this classification, this case would be stage 2.

Reference: Wheeles Textbook of Orthopaedics Online

Credit: Dr Laughlin Dawes