Affiliation:
1. Department of Trauma and Orthopaedic Surgery, Queens Medical Centre, University Hospital, Nottingham, UK
Abstract
This study assessed whether nonunion of displaced scaphoid waist fractures with nonoperative treatment could be predicted from 4 week CT scans. Thirty-one patients with unilateral displaced scaphoid waist fractures and adequate follow-up were included. CT scans in the longitudinal axis of the scaphoid with sagittal and coronal slices were done 4 weeks after the index injury. The effects of fracture gap, sclerosis and bone resorption on union were assessed. Fracture union was observed in all 13 displaced fractures with a <2 mm gap, four of the seven with a gap of 2–3 mm and only four of the 11 with a gap >3 mm ( p = 0.01). Bone resorption involving more than 50% of the fracture cross-section was also associated with nonunion, but sclerosis was not.
Cited by
30 articles.
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