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Validation of a surgical invasiveness index in patients with lumbar spinal disorders registered in the Spine Tango registry by Erik M. Holzer; Emin Aghayev; Dave O’Riordan; Tamas F. Fekete; Dezső J. Jeszenszky; Daniel Haschtmann; Francois Porchet; Frank S. Kleinstueck; Tim Pigott; Everard Munting; Andrea Luca; Anne F. Mannion is a Medicine article available to read on EtoBox.
What is Validation of a surgical invasiveness index in patients with lumbar spinal disorders registered in the Spine Tango registry about?
## Abstract ## Introduction Being able to quantify the invasiveness of a surgical procedure is important to weigh up its associated risks, since invasiveness governs the blood loss, operative time and likelihood of complications. Mirza et al. (Spine (Phila Pa 1976) 33:2651–2661, 2008) published an invasiveness index for spinal surgery. We evaluated the validity of a modified version of the Mirza invasiveness index (mMII), adapted for use with registry data. ## Methods A cross-sectional analysis was performed with data acquired from the Spine Tango registry including 21,634 patients. The mMII was calculated as the sum of six possible interventions on each vertebral level: decompression, fusion and stabilization either on anterior or posterior structures. The association between the mMII and blood loss, operative time and complications was evaluated using multiple regression, adjusting for possible confounders. ## Results The mean (± SD) mMII was 3.9 ± 5.0 (range 0–40). A 1-point increase in the mMII was associated with an additional blood loss of 12.8% (95% CI 12.6–13.0; p < 0.001) and an increase of operative time of 10.4 min (95% CI 10.20–10.53; p < 0.001). The R^2^ for the blood
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- Author
- Erik M. Holzer; Emin Aghayev; Dave O’Riordan; Tamas F. Fekete; Dezső J. Jeszenszky; Daniel Haschtmann; Francois Porchet; Frank S. Kleinstueck; Tim Pigott; Everard Munting; Andrea Luca; Anne F. Mannion
- Publisher
- Springer; Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0940-6719)
- Published
- 2020
- Language
- EN
- Field
- Medicine (Health Sciences)