Predicting a safe screw length for volar plate fixation of distal radius fractures: lunate depth as a marker for distal radius depth

The Journal of Hand Surgery
Karin L LjungquistJerry I Huang

Abstract

We hypothesized that the lunate depth as measured on plain lateral radiographs can be used to predict distal radius depth radially and ulnarly and serve as a useful reference for intraoperative screw placement in volar plate fixation of distal radius fractures. Plain radiographs and magnetic resonance imaging (MRI) of the wrists of 30 patients were reviewed. The lunate depth and the maximal depth of the distal radius were determined from plain lateral radiographs. Depth of the distal radius, measured in quartiles, was determined from axial MRI images, and the lunate depth was obtained from sagittal MRI images. The depth of the distal radius in each quartile was then calculated related to the lunate depth. The mean depth of the lunate on plain radiographs and MRI was 17.5 mm and 17.4 mm, respectively. The depth of the distal radius from ulnar to radial was 18.4 mm, 20.2 mm, 19.4 mm, and 15.1 mm for the 1st through 4th quartiles, respectively. The depth of the distal radius is the least radially (4th quartile), with a mean 87% of the lunate depth, and greatest in the 2nd quartile, with a mean 116% of the lunate depth. The depth of the lunate as measured on plain radiographs can be used as a marker for drilling and placement of sa...Continue Reading

References

Jul 26, 2005·The Journal of Hand Surgery·Douglas S Musgrave, Richard S Idler
Jul 26, 2005·Hand Clinics·Jorge Orbay
Sep 10, 2008·Hand : Official Journal of the American Association for Hand Surgery·Steven D MaschkeJeffrey N Lawton
Jan 6, 2009·The Journal of Hand Surgery·Andrew D Thomas, Jeffrey A Greenberg
Aug 26, 2011·The Journal of Hand Surgery·Samuel James Joseph, Jason N Harvey
Nov 9, 2011·The Journal of Hand Surgery, European Volume·A P RiddickS P White
Aug 24, 2012·Techniques in Hand & Upper Extremity Surgery·Derek H Park, Boyd S Goldie

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Citations

Mar 12, 2016·BMC Musculoskeletal Disorders·Alexaner SynekSebastian F Baumbach
Jun 28, 2016·The Journal of Hand Surgery·Ram K AlluriAlidad Ghiassi
Jan 24, 2017·Orthopedics·Adam E M EltoraiChristopher T Born
Aug 8, 2018·Hand : Official Journal of the American Association for Hand Surgery·Nicholas PulosMarco Rizzo
Nov 10, 2017·The Journal of Hand Surgery Asian-Pacific Volume·Darshan Kumar A JainD C Sundaresh
Jan 26, 2018·Journal of Orthopaedic Surgery·Abdulhamit MisirAhmet Sevencan
Apr 13, 2019·The Journal of Hand Surgery, European Volume·Hoel LetissierNathalie Kerfant
Mar 29, 2021·The Journal of Foot and Ankle Surgery : Official Publication of the American College of Foot and Ankle Surgeons·Dong-Il ChunSung Hun Won

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