PMC5494097_01
Plain radiograph showing expansile osteolytic lesion involving the entire length of the first metacarpal.
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Radiographs revealed an expansile osteolytic lesion involving the entire length of the first metacarpal bone (Figure 1).
MRI showing the extension of the tumor into the surrounding soft tissue and around the first carpometacarpal joint (yellow arrow).
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Extension of the tumor into the surrounding soft tissue and around first carpometacarpal joint was observed (Figure 2).
Photomicrograph of tumor histology demonstrating many osteoclast-like giant cells in a background of numerous round-to-spindle shaped mononuclear cells.
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The pathological findings from the core needle biopsy were consistent with the GCT of bone (Figure 3).
Photographs of the prosthesis before implantation: (a) anterior aspect and (b) volar aspect.
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Multiple holes were designed in the proximal and distal portions of the prosthesis for the ligament reconstruction and temporary fixation (Figure 4).
Intraoperative photographs showing 3D printed titanium first metacarpal prosthesis with the ligament reconstruction in the proximal and distal portions: free palmaris longus tendon graft (blue arrow head), flexor carpi radialis tendon (yellow arrow head), and extensor pollicis brevis tendon (blue arrow).
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The ligament reconstruction was performed (Figure 5).
Plain radiographs of a patient-matched total first metacarpal prosthesis.
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The MCP and CMC joints were stable both clinically and radiologically (Figure 6).
Postoperative appearance and range of motion at 24 months postoperatively.
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The range of motion of CMC joint was 5 degrees of flexion, 25 degrees of extension, and 45 degrees of abduction (Figure 7).