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DOI: 10.1007/s12593-011-0030-2
Reliability of the 8 Week Time Point for Single Assessment of Midcarpal Fusion by CT Scan
Subject Editor:
Publication History
07 December 2010
26 January 2011
Publication Date:
05 September 2016 (online)
![](https://www.thieme-connect.de/media/10.1055-s-00031417/201101/lookinside/thumbnails/10-1007-s12593-011-0030-2-1.jpg)
Abstract
High rates of nonunion have recently been reported for midcarpal fusions. Due to curvature and overlap of carpal interfaces, two dimensional films are not reliable in determining union of a midcarpal fusion. Computed tomography is the most reliable radiographic method of evaluating osseous union. Initiating motion as soon as fusion has occurred is a priority with the goal of maximizing final range. Cost control in healthcare makes obtaining serial scans unreasonable. The single optimal time point for a computed tomography scan to determine union of a midcarpal fusion remains to be determined. A prospective protocol selected 8 weeks post operative as the point in time to obtain the single determining scan. Forty-six consecutive midcarpal fusions with scaphoidectomy were retrospectively analyzed for the reliability of this time point. All fusions had achieved union by 8 weeks and only this one scan was clinically necessary to advance the patients on to full range of motion without a splint at that time.
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