Treatment of scaphoid nonunion using volar biconcave cancellous bone grafting

M Yasuda, Y Ando, K Masada
Hand Surgery 2007, 12 (2): 135-40
We report the results of 28 patients with scaphoid nonunion treated with curettage and biconcave cancellous bone grafting from the distal radius using a volar approach and pin fixation. This study consisted of 28 patients (24 males and 4 females). The mean age at surgery was 28 years. The mean interval from injury to surgery was 22 months. The mean follow-up period was 20 months. By Russe classification, there were 6 distal third nonunions, 19 middle third nonunions and 3 proximal third nonunions. We reviewed final function and radiographic appearance. Bony union was achieved in all cases. Pins were removed at a mean of 7 weeks after surgery. Post-activity pain resolved in all cases. Mean wrist extension was 79 degrees and mean flexion 77 degrees. Mean grip strength was 35.8 kgf. The mean postoperative radio-lunate angle was 4.9 degrees (-21-28.8) compared to -5.9 degrees (-37.5-17.5) preoperatively. No complications were encountered. Our procedure is straightforward and not technically demanding. An STT arthrotomy is not necessary and the technique allows for concurrent correction of carpal instability. Bony union was achieved in all cases with no complications.

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