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. 2022 May 23;14(2):380–389. doi: 10.1177/21925682221105005

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© The Author(s) 2022

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 License (https://creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Pie charts showing the distribution of BMD based on DXA T-scores as well as vitamin D and PTH levels. (A) Among all patients indicated for lumbar spine surgery (n=389), 12% had osteoporosis. No differences between patients undergoing primary or revision surgery were found. (B) Frequency of vitamin D deficiency and hyperparathyroidism. (C) In patients undergoing primary surgery, a trend toward increasing osteoporosis incidence was noted between patients undergoing discectomy, decompression, and fusion. (D) Patients who underwent revision surgery for complications after fusion were diagnosed with osteoporosis or osteopenia slightly more frequently than patients who underwent revision after decompression. (E) Among the patients being revised after fusion, those with skeletal complications tended to have higher rates of osteoporosis and osteopenia compared to those with non-skeletal complications.