Postoperative accuracy quantification of corrective osteotomies: standardisation of Q3D-CT methodology

• DOI: 10.1007/s00068-024-02684-8
• Publication Date: 2025-01-24T16:24:28Z
• Authors: Sander J. C. Tabe...; Anne M. L. Meesters; Nico J. J. Verdon...; Paul C. Jutte; Job N. Doornberg; Peter A. J. Pijpker; Joep Kraeima
• Keywords: Surgical Planning; Gold standard (test)

Abstract Purpose Currently, no gold standard exists for 3D analysis of virtually planned surgery accuracy postoperatively. The aim this study was to present a new, validated and standardised methodology postoperative assessment surgical in patients undergoing guided corrective osteotomies. Methods All who underwent osteotomy 2021–2022 at our center with CT were included. Postoperative outcome analysed compared the preoperative virtual planning determine achieved accuracy. Validation performed by evaluating individual six experienced observers. A quantification according proposed innovative based on rotation axes bone model aligned model. To evaluate intra-observer variability, one observer twice. Results Quantification 13 resulted measurements median range (and its interquartile range) translation of: 2.43 mm (3.17), angle deviations: rotation, 2D coronal, sagittal axial were: 0.66° (1.66°), 0.74° (0.44°), 0.99° (1.27°), 2.37° (5.00°), respectively. inter- intraobserver reliability established Intraclass correlation coefficient all excellent (> 0.76). Conclusion technique provides an significant more accurate objective method osteotomy. novel showed clinically acceptable absolute measurements.