Structural vs nonstructural bone grafting for the treatment of unstable scaphoid waist nonunion without avascular necrosis: A randomized clinical trial
The Journal of Hand Surgery Apr 05, 2021
Hegazy G, Massoud AH, Seddik M, et al. - The present study was performed to test the effect of structural versus nonstructural bone grafting on the time to union, scaphoid deformity correction, and clinical outcomes in adults with unstable scaphoid waist nonunion without avascular necrosis. Ninety-eight patients were prospectively randomized to undergo open reduction, iliac crest bone grafting with either corticocancellous (CC group) or cancellous bone only (C-only), and internal fixation using a Herbert screw. Researchers tested lateral intrascaphoid angle and scaphoid height length ratio on wrist computed tomography scans along the scaphoid longitudinal axis before surgery and an average of 84 weeks afterward. They further evaluated pain, range of motion, grip strength, and Quick–Disabilities of the Arm, Shoulder, and Hand (QuickDASH) score before surgery and an average of 84 weeks afterward. The results of this study demonstrate that the severity of the scaphoid deformity may be a factor in ascertaining the best graft type, because this may affect the rate of successful deformity correction. It was shown that in patients who had a high degree of scaphoid deformity, corticocancellous grafting provided consistent deformity correction and superior QuickDASH scores. Compared with CC grafting, C-only grafting gives earlier time to union and equivalent clinical and radiographic outcomes.
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