Corrections

Radcliff K, Zigler J, Braxton E, et al. Final long-term reporting from a randomized controlled IDE trial for lumbar artificial discs in single-level degenerative disc disease: 7-year results. Int J Spine Surg. 2021;15(4):612-632. https://doi.org/10.14444/8083

The authors report that an error appeared in this article. On page 614, the data listed in the following sentences were incorrect: “The mean Physical Component Summary improved by 13.1 points and 11.4 points, for the activL and ProDisc-L patients, respectively (P ‼ .0001). Moreover, the mean Mental Component Summary also significantly improved compared with baseline (P ‼ .0001) (activL, 17.2 points; ProDisc-L, 18.3 points).”

The sentence should have appeared as follows: “The mean Physical Component Summary improved by 17.2 points and 18.3 points, for the activL and ProDisc-L patients, respectively (P ‼ .0001). Moreover, the mean Mental Component Summary also significantly improved compared with baseline (P ‼ .0001) (activL, 13.1 points; ProDisc-L, 11.4 points).” (doi:10.14444/8083cxx)

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