Analysis of deformity in scaphoid non-unions using two- and three-dimensional imaging

作者：Ten Berg P W L^*; Dobbe J G G; Horbach S E R; Gerards R M; Strackee S D; Streekstra G J

来源：Journal of Hand Surgery-European Volume, 2016, 41(7): 719-726.

DOI：10.1177/1753193415614430

• Scaphoid deformity
• scaphoid non-union
• three-dimensional computed tomography
• reconstructive surgery
• graft reconstruction

Pre-operative assessment of the deformity in scaphoid non-unions influences surgical decision-making. To characterize deformity, we used three-dimensional computed tomographic modelling in 28 scaphoid non-unions, and quantified bone loss, dorsal osteophyte volume and flexion deformity. We further related these three-dimensional parameters to the intrascaphoid and capitate-lunate angles, and stage of scaphoid non-union advanced collapse assessed on conventional two-dimensional images and to the chosen surgical procedure. Three-dimensional flexion deformity (mean 26 degrees) did not correlate with intrascaphoid and capitate-lunate angles. Osteophyte volume was positively correlated with bone loss and stage of scaphoid non-union advanced collapse. Osteophyte volume and bone loss increased over time. Three-dimensional modelling enables the quantification of bone loss and osteophyte volume, which may be valuable parameters in the characterization of deformity and subsequent decision-making about treatment, when taken in addition to the clinical aspects and level of osteoarthritis. Type of study/level of evidence: Level IV

• 出版日期2016-9