An Unusual and Complicated Course of a Giant Cell Tumor of the Capitate Bone

Figure 2

Case report (course): (a) PA and lateral radiographs showing union of CMC III joint fusion, severe destruction of midcarpal joint, positive ring sign (arrow), and distinctive volar tilt of capitate bone (line); (b) coronar and sagittal CT scans showing removal of CMC III joint fusion plate, solid bony structure of reconstructed capitate bone, no recurrence of GCT, complete union of CMC III joint fusion, complete resection of midcarpal joint for histological examination, and humpback deformity due to a nonunion at the waist of scaphoid bone (arrow); (c) intraoperative clinical photograph and lateral fluoroscopy demonstrating safe subchondral placement of the longitudinally inserted 4CF headless compression screw at the lunate bone (arrow); (d) PA radiograph and sagittal CT scan showing loosening and migration of longitudinally inserted compression screw into radiocarpal joint with erosion of articular surface at the distal radius (arrows); (e) postoperative AP and lateral radiographs demonstrating correct alignment of TWA, note the scaphoid augment of carpal component (arrow).

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