Screw length in volar locking plate fixation for distal radial fractures

Journal of Orthopaedic Surgery
G YuenFrankie Leung

Abstract

To develop a reference for the distal screw length in volar locking plate fixation for distal radial fractures in an East Asian population. 12 pairs of forearm specimens from 11 male and one female East Asian cadavers were scanned using computed tomography. On sagittal images of the distal radius, the mean cortex-to-cortex distance of 8 quadrants was measured as a reference for the distal screw length. In addition, intra-operative 3-dimensional fluoroscopy of 10 male and 10 female patients who underwent volar locking plate fixation for distal radial fractures was used to validate the distal screw length in the cadaveric reference. 76 distal locking screws were applied in the 8 quadrants; their cortex-to-cortex distances were measured. The mean cortex-to-cortex distances at quadrants A, B, C, D, E, F, G, and H were 15.4 mm, 19.6 mm, 20.8 mm, 20.0 mm, 13.3 mm, 18.0 mm, 18.8 mm, and 17.4 mm, respectively. In 45% of the specimens, the 2 screws inserted at quadrants C and D were longest. Distal screws (quadrants A to D) were significantly longer than proximal screws (quadrants E to H) [p=0.02]. In intra-operative 3-dimensional fluoroscopic images, 2 of the 76 distal locking screws penetrated the dorsal cortex (one in quadrant A and ...Continue Reading

References

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Mar 4, 2011·International Orthopaedics·Kenny KwanFrankie Leung
Aug 26, 2011·The Journal of Hand Surgery·Samuel James Joseph, Jason N Harvey

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Citations

Apr 13, 2019·The Journal of Hand Surgery, European Volume·Hoel LetissierNathalie Kerfant

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