{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T04:19:17Z","timestamp":1792815557088,"version":"4.5.0"},"reference-count":46,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,6,19]]},"abstract":"<jats:sec>\n                    <jats:title>OBJECTIVE<\/jats:title>\n                    <jats:p>Although patients often report improvements in pain and functional capacity after endoscopic lumbar spine surgery, objectively measured real-life physical activity may differ from that reported. This multicenter prospective study aimed to assess the correlations between physical activity and patient-reported outcomes (PROs).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>All adult patients undergoing endoscopic lumbar spine surgery were offered enrollment in the SPINEhealthie smartphone app to assess physical activity. Estimated daily step counts (SCs) and serial PROs, including visual analog scale (VAS) leg pain, VAS back pain, and Oswestry Disability Index (ODI) scores, were collected.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>Of the 289 patients with pre- and postoperative SC data (mean follow-up 11.4 months), &gt; 70% of patients achieved minimal clinically important difference (MCID) for VAS back and leg pain at 2 weeks and remained stable at 1 year (p &lt; 0.05). Although patients demonstrated substantial improvement in VAS leg (\u22123.4, p &lt; 0.001) and VAS back (\u22123.1, p &lt; 0.001) pain scores at 2 weeks, the mean SC decreased significantly at 2 weeks (\u2212632.4, p &lt; 0.001). SC began to increase at 3 months (+265.7, p = 0.004). VAS scores demonstrated minimal further improvement beyond 2 weeks, but SCs continued to improve at all subsequent time points (p &lt; 0.001), as did ODI (\u221212.2 at 3 months and \u221213.6 at 1 year, p &lt; 0.001 for both). Preoperative SC was highly predictive of 1-year SC (r = 0.86, p &lt; 0.001) and mildly predictive of ODI at 1 year (r = \u22120.31, p = 0.006). No preoperative PRO was correlated with PROs or SC at 1 year (r \u2264 0.10, p &gt; 0.2 for all). Quartile analysis of SC revealed that pain scores did not correlate with functional measures. The patient quartiles\u2019 recovery patterns remained distinct (p &lt; 0.05 between quartiles at 1 year). ODI improvement was greater in patients with higher baseline SCs (\u221215.6 vs \u221213.8 in the lowest quartile at 1 year, p = 0.047). Stratification of patients by baseline scores did not distinguish improvement in SC, or ODI, VAS leg pain, or VAS back pain (p &gt; 0.05 for all) scores, indicative that baseline scores did not predict outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSIONS<\/jats:title>\n                    <jats:p>Patients demonstrated immediate reduction in pain but delayed improvement in SC and ODI score. Among preoperative assessments, only SCs were predictive of postoperative outcomes. Furthermore, pain scores did not correlate with disability or activity. SC demonstrated interquartile stability, suggesting that SC may provide a reliable and independent perspective and may be predictive of outcomes.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/2026.1.spine25926","type":"journal-article","created":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T00:22:32Z","timestamp":1781655752000},"page":"1-11","source":"Crossref","is-referenced-by-count":1,"title":["Physical activity and patient-reported outcomes after decompressive endoscopic lumbar spine surgery"],"prefix":"10.3171","author":[{"given":"Sama","family":"Noroozi Gilandehi","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Loay","family":"Shoubash","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jannik","family":"Leyendecker","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Washington, Seattle, Washington"},{"name":"Department of Orthopedics and Trauma Surgery, Faculty of Medicine, University of Cologne, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sanjay","family":"Konakondla","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Geisinger Neuroscience Institute, Danville, Pennsylvania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Osama","family":"Kashlan","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan"},{"name":"University Hospital Cologne, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Derman","sequence":"additional","affiliation":[{"name":"Texas Back Institute, Plano, Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Albert E.","family":"Telfeian","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Warren Alpert School of Medicine of Brown University, Providence, Rhode Island"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christoph P.","family":"Hofstetter","sequence":"additional","affiliation":[{"name":"Department of Neurological Surgery, University of Washington, Seattle, Washington"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mark A.","family":"Mahan","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"issue":"1","key":"b1","series-title":"BMC Musculoskelet Disord","first-page":"883","article-title":"Role of psychosocial factors on the effect of physical activity on physical function in patients after lumbar spine surgery","volume":"22","author":"Master H","year":"2021","unstructured":"Master H, Castillo R, Wegener ST,  Role of psychosocial factors on the effect of physical activity on physical function in patients after lumbar spine surgery. BMC Musculoskelet Disord. 2021;22(1):883. doi: 10.1186\/s12891-021-04622-w"},{"issue":"11","key":"b2","series-title":"Eur Spine J","first-page":"2362","article-title":"Patients\u2019 expectations of lumbar spine surgery","volume":"24","author":"Mancuso CA","year":"2015","unstructured":"Mancuso CA, Duculan R, Stal M, Girardi FP. Patients\u2019 expectations of lumbar spine surgery. Eur Spine J. 2015;24(11):2362\u20132369. doi: 10.1007\/s00586-014-3597-z"},{"issue":"12","key":"b3","series-title":"Phys Ther","first-page":"1646","article-title":"Physical therapy interventions for degenerative lumbar spinal stenosis: a systematic review","volume":"93","author":"Macedo LG","year":"2013","unstructured":"Macedo LG, Hum A, Kuleba L,  Physical therapy interventions for degenerative lumbar spinal stenosis: a systematic review. Phys Ther. 2013;93(12):1646\u20131660. doi: 10.2522\/ptj.20120379"},{"issue":"1","key":"b4","series-title":"Sci Rep","first-page":"4939","article-title":"Objective activity tracking in spine surgery: a prospective feasibility study with a low-cost consumer grade wearable accelerometer","volume":"10","author":"Stienen MN","year":"2020","unstructured":"Stienen MN, Rezaii PG, Ho AL,  Objective activity tracking in spine surgery: a prospective feasibility study with a low-cost consumer grade wearable accelerometer. 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Neurosurgery. 2024;96(6):1144\u20131154. doi: 10.1227\/neu.0000000000002808"},{"issue":"1","key":"b17","series-title":"J Neurosurg Spine","first-page":"122","article-title":"Remote patient monitoring following full endoscopic spine surgery: feasibility and patient satisfaction","volume":"39","author":"Prasse T","year":"2023","unstructured":"Prasse T, Yap N, Sivakanthan S,  Remote patient monitoring following full endoscopic spine surgery: feasibility and patient satisfaction. J Neurosurg Spine. 2023;39(1):122\u2013131. doi: 10.3171\/2023.2.SPINE23136"},{"issue":"2","key":"b18","series-title":"Asian Spine J","first-page":"366","article-title":"Long-term objective physical activity measurements using a wireless accelerometer following minimally invasive transforaminal interbody fusion surgery","volume":"10","author":"Phan K","year":"2016","unstructured":"Phan K, Mobbs RJ. 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Validation of smartphone app-based digital patient reported outcomes in full-endoscopic spine surgery. Eur Spine J. 2023;32(8):2903\u20132909. doi: 10.1007\/s00586-023-07819-w"},{"issue":"5","key":"b7","series-title":"J Neurosurg Spine","first-page":"471","article-title":"Minimum clinically important difference in pain, disability, and quality of life after neural decompression and fusion for same-level recurrent lumbar stenosis: understanding clinical versus statistical significance","volume":"16","author":"Parker SL","year":"2012","unstructured":"Parker SL, Mendenhall SK, Shau DN,  Minimum clinically important difference in pain, disability, and quality of life after neural decompression and fusion for same-level recurrent lumbar stenosis: understanding clinical versus statistical significance. 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Walking assessment in people with lumbar spinal stenosis: capacity, performance, and self-report measures. Spine J. 2011;11(9):816\u2013823. doi: 10.1016\/j.spinee.2010.10.019"},{"key":"b13","series-title":"World Neurosurg X","first-page":"100238","article-title":"Smartphone-based activity tracking for spine patients: current technology and future opportunities","volume":"21","author":"Leibold A","year":"2024","unstructured":"Leibold A, Mansoor Ali D, Harrop J, Sharan A, Vaccaro AR, Sivaganesan A. Smartphone-based activity tracking for spine patients: current technology and future opportunities. 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Long-term objective physical activity measurements using a wireless accelerometer following minimally invasive transforaminal interbody fusion surgery. Asian Spine J. 2016;10(2):366\u2013369. doi: 10.4184\/asj.2016.10.2.366"},{"issue":"4","key":"b19","series-title":"Neurosurgery","first-page":"763","article-title":"Using smartphone-based accelerometer data to objectively assess outcomes in spine surgery","volume":"88","author":"Basil GW","year":"2021","unstructured":"Basil GW, Sprau AC, Eliahu K, Borowsky PA, Wang MY, Yoon JW. Using smartphone-based accelerometer data to objectively assess outcomes in spine surgery. 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