Fig. 2. Arthroscopic lunocapitate (LC) fusion using 1 screw vs. 2 screws. (A, B) Preoperative posteroanterior radiographic and coronal computed tomographic views of a 50-year-old male patient with stage III scaphoid nonunion advanced collapse (SNAC) of the right wrist. (C) Posteroanterior radiographic view taken immediately after arthroscopic LC fusion using 1 screw. (D) Two years after surgery, definite radiolucent loosening (> 1.0 mm of the radiolucent area around the screw: arrowheads) was observed on the posteroanterior radiograph, although the lunocapitate interval achieved bony union. (E, F) Preoperative posteroanterior radiographic and coronal computed tomographic views of a 65-year-old female patient with stage III SNAC of the right wrist. (G) Postoperative posteroanterior radiographic view taken immediately after arthroscopic LC fusion using 2 screws. (H) Two years after surgery, there was no definite radiolucent loosening (< 1.0 mm) on the posteroanterior radiographic view, and the lunocapitate interval achieved bony union.