PMC9166264_01
Initial plain radiographs of the wrist (anteroposterior and lateral views) show a dorsal dislocation of the lunate with corresponding distortion of the Gilula's lines. There is no evidence of any carpal bone fracture
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F1
A complete radiographic evaluation was performed and interpreted as normal by both his physician and a radiology specialist despite the images showing a dorsal lunate dislocation (Fig. 1).
Intraoperative picture of the open reduction. Intraoperative picture shows the dorsal capsule retracted and the lunate dislocated with no soft tissue remnants. Intercarpal ligament deterioration prevented direct repair
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F2
A complete rupture of scapholunate and lunotriquetral ligaments was noted with no remnants to facilitate a primary repair (Fig. 2).
Postoperative plain radiographs (anteroposterior and lateral views) show a correct articular reduction. A cannulated headless screw was placed between scaphoid and lunate. K-wires connecting lunate to triquetrum and scaphoid to capitate contributed to additional stability
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F3
Additionally, we used K-wires connecting triquetrum to lunate and scaphoid to capitate (Fig. 3).
Postoperative radiographs at 2 months show a relapse of the instability. The lunate is dorsally dislocated and a decrease in carpal height can be observed
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F4
Radiologically, the lunate appeared dorsally luxated and a decrease in carpal height was observed (Fig. 4).
Postoperative radiographs 24 months after wrist arthrodesis show a successful radiocarpal arthrodesis. The patient remains asymptomatic with excellent function
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F5
Radiographic evaluation shows a successful radiocarpal arthrodesis (Fig. 5).