The Acumed Osteotomy System features the Ulna Shortening Plate, designed to offer a low-profile plate with built-in osteotomy reference lines and an Osteotomy Guide. The reference lines on the plate help facilitate the creation of the osteotomy when a “freehand cut” is preferred. Designed in conjunction with William B. Geissler, MD, the low-profile Ulna Shortening Plate is designed to keep the screw heads as low as possible. The interfragmentary screw may be placed in one of two locations through the scalloped slot and is intended to compress the osteotomy securely when used as a lag screw. The plate offers the option to lock up to three screws distally and one proximally. Indications for an ulna shortening osteotomy include: Ulnar Impaction Syndrome due to ulnar-positive variance, Distal radial ulnar joint (DRUJ) incongruity due to shortening of the radius, Traumatic and degenerative tears of the triangular fibrocartilage complex (TFCC) associated with positive ulnar variance