This week we are going to leave the leg and move into the upper extremity (arm) to discuss a condition that occurs in the wrist and can be significantly debilitating—the scaphoid fracture. The ...

Due to a tenuous blood supply, displaced scaphoid fractures are prone to non-union and avascular necrosis. Scaphoid non-union occurs in 5% of all scaphoid fractures. 1 Scaphoid fractures that fail to ...

Avascular necrosis (AVN) is the death of bone tissue due to a loss of blood supply. You might also hear it called osteonecrosis, aseptic necrosis, or ischemic bone necrosis. In its earliest stages, ...

Kienböck disease is the eponym for avascular necrosis of the lunate, named after Robert Kienböck, a Viennese radiologist in the early 1900's. The exact etiology is poorly understood particularly as it ...

Avascular necrosis refers to the death of bone tissue that stems from an interruption in its blood supply. The condition typically affects the ends of long bones at weight-bearing joints, with the hip ...

MRI is a form of nonionizing radiation that allows imaging of bone marrow, soft tissues (including cartilage, ligaments, and tendons) and neurovascular structures in three planes (Fig. 18). Images are ...

Avascular necrosis remains a threat for children with femoral neck fractures, but research suggests that age and fracture type may help identify high-risk patients. In a review of 24 institutional ...