, Volume 468, Issue 3, pp 679-686
Date: 07 May 2009

Do Intraoperative Radiographs in Scoliosis Surgery Reflect Radiographic Result?

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Abstract

It is often difficult to predict postoperative radiographic curve magnitude and balance parameters while performing intraoperative correction during scoliosis surgery. We asked whether there was a radiographic correlation between intraoperative long-cassette scoliosis film and postoperative standing radiographs of adolescent idiopathic scoliosis with pedicle screw instrumentation. We retrospectively reviewed 44 patients with adolescent idiopathic scoliosis who underwent posterior instrumentation with pedicle screws. We made preoperative, intraoperative (after instrumentation and correction), and standing postoperative radiographic measurements (eg, curve magnitudes, coronal and sagittal balance, disc angles) and compared those for the intra- and postoperative radiographs. The intraoperative long-cassette scoliosis film correlated with the immediate postoperative standing film for all curve correction and balance parameters. The routine use of a long-cassette intraoperative scoliosis film provides the surgeon with a valuable tool to guide intraoperative decision-making and foreshadows the correction and balance obtained on the immediate postoperative film.

Level of Evidence: Level IV, retrospective study. See Guidelines for Authors for a complete description of levels of evidence.

One or more of the authors (LGL) has received funding from Medtronic, DePuy, Axial Biotech, and Quality Medical Publishing.
Each author certifies that his or her institution has approved the human protocol for this investigation, that all investigations were conducted in conformity with ethical principles of research, and that informed consent for participation in the study was obtained.
This work was performed at the Walter Reed Army Medical Center, Washington, DC, and Washington University School of Medicine, St Louis, MO.
The views expressed in this manuscript are those of the authors and do not reflect the official policy of the Department of Army, Department of Defense, or the US Government. Three authors are employees of the US Government. This work was prepared as part of their official duties and as such there is no copyright to be transferred.