Bicolumnar fusion for scaphoid nonunion advanced collapse without bone grafting.

Scaphoid nonunion advanced collapse leading to wrist osteoarthritis is treated by 4-corner fusion, capitolunate arthrodesis, and 3-corner fusion with a variety of hardware and bone grafting techniques as reported in the literature. However, such procedures have been associated with complications such as nonunion, hardware failure, and deep infection. On the basis of the same concept of these intercarpal fusions with the aim to transmit the load of the wrist, we present bicolumnar fusion to fuse the capitolunate articulation and the triquetrohamate articulation and preserve the articulation between the 2 columns, maintaining much of the normal anatomy and physiology of the normal wrist. This technique has allowed the use of screws for compression of both articulations and achieve union without the use of bone grafting.