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Thirty-five patients who underwent surgery using selective caudal fixed screw construct (SF group) were compared with 44 patients who underwent surgery using all variable constructs (AV group). The fusion rate, subsidence, adjacent level ossification development (ALOD), adjacent segmental disease (ASD), and plate-adjacent disc space distance were assessed. The one-year fusion rates assessed by computed tomography bone bridging and interspinous motion as well as the significant subsidence rate did not differ significantly between the AV and SF groups. The ALOD and ASD rates and plate-adjacent disc space distances did not significantly differ between the two groups at both the cranial and caudal adjacent levels. The number of operated levels was significantly associated with pseudarthrosis in the logistic regression analysis. The stability provided by the locking mechanism of the fixed screw did not lead to an increased fusion rate at the caudal level. Therefore, the screw type should be selected based on individual patient\u2019s anatomy and surgeon\u2019s experience without concern for increased complications caused by screw type.<\/jats:p>","DOI":"10.1038\/s41598-021-90121-w","type":"journal-article","created":{"date-parts":[[2021,5,19]],"date-time":"2021-05-19T10:03:08Z","timestamp":1621418588000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Comparison between selective caudal fixed screw construct and all variable screw construct in anterior cervical discectomy and fusion"],"prefix":"10.1038","volume":"11","author":[{"given":"Jae Jun","family":"Yang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sehan","family":"Park","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seongyun","family":"Park","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,5,19]]},"reference":[{"key":"90121_CR1","doi-asserted-by":"publisher","DOI":"10.3171\/2019.9.SPINE19879","author":"M Wang","year":"2019","unstructured":"Wang, M. et al. 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