{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T02:17:48Z","timestamp":1787019468070,"version":"build-2736575974"},"reference-count":23,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2022,6,17]],"date-time":"2022-06-17T00:00:00Z","timestamp":1655424000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Global Spine Journal"],"published-print":{"date-parts":[[2024,3]]},"abstract":"<jats:sec>\n                    <jats:title>Study Design<\/jats:title>\n                    <jats:p>Retrospective case series.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To investigate the influence of screw size on achieving bone fusion in posterior lumbar interbody fusion (PLIF).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In total, 137 consecutive patients with L4 degenerative spondylolisthesis who underwent single-level PLIF at L4-L5 were evaluated. Factors investigated for their contribution to bone fusion included: 1) age, 2) sex, 3) body mass index, 4) bone mineral density, 5) intervertebral mobility, 6) screw diameter, 7) screw length, 8) screw fitness in the pedicle (%fill), 9) screw depth in the vertebra (%depth), 10) screw angle, 11) facetectomy, 12) crosslink connector, and 13) cage material.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Bone fusion was confirmed in 88.2% of patients. The comparison between fusion (+) and fusion (-) groups showed no significant differences in screw size. The %fill and %length were significantly greater in the fusion (+) group than in the fusion (-) group (%fill: 58.5% \u00b1 7.5% vs 52.3% \u00b1 7.3%, respectively, P = .005; %depth: 59.8% \u00b1 9.7% vs 50.3% \u00b1 13.8%, respectively, P = .025). Multivariate logistic regression analysis revealed that %fill (odds ratio [OR]= 1.11, P = .025) and %depth (OR = 1.09, P = .003) were significant independent factors affecting bone fusion. Receiver operating characteristic curve analyses identified a %fill of 60.0% and a %depth of 54.2% as optimal cutoff values for achieving bone fusion<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Screw size should be determined based on the screw fitness in the pedicle (%fill &gt; 60%) and screw insertion depth in the vertebral body (%depth &gt; 54.2%) according to individual vertebral anatomy in L4-L5 PLIF.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/21925682221110142","type":"journal-article","created":{"date-parts":[[2022,6,17]],"date-time":"2022-06-17T12:35:51Z","timestamp":1655469351000},"page":"470-477","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":7,"title":["Influence of Pedicle Screw Insertion Depth on Posterior Lumbar Interbody Fusion: Radiological Significance of Deeper Screw Placement"],"prefix":"10.1177","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1356-5540","authenticated-orcid":false,"given":"Keitaro","family":"Matsukawa","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, National Hospital Organization, Murayama Medical Center, Musashimurayama, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6704-7573","authenticated-orcid":false,"given":"Tsunehiko","family":"Konomi","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, National Hospital Organization, Murayama Medical Center, Musashimurayama, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kohei","family":"Matsubayashi","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, National Hospital Organization, Murayama Medical Center, Musashimurayama, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junichi","family":"Yamane","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, National Hospital Organization, Murayama Medical Center, Musashimurayama, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshiyuki","family":"Yato","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, National Hospital Organization, Murayama Medical Center, Musashimurayama, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2022,6,17]]},"reference":[{"key":"bibr1-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.92B8.24237"},{"key":"bibr2-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-199211000-00006"},{"key":"bibr3-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-199711010-00007"},{"key":"bibr4-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-198602000-00012"},{"key":"bibr5-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/BSD.0000000000000151"},{"key":"bibr6-21925682221110142","doi-asserted-by":"publisher","DOI":"10.31616\/asj.2020.0353"},{"key":"bibr7-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/BSD.0000000000000178"},{"key":"bibr8-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/00002517-198800140-00002"},{"key":"bibr9-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-199312000-00012"},{"key":"bibr10-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e3181de4f2e"},{"key":"bibr11-21925682221110142","doi-asserted-by":"publisher","DOI":"10.3171\/2021.2.SPINE202229"},{"key":"bibr12-21925682221110142","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.J.00160"},{"key":"bibr13-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-199408000-00016"},{"key":"bibr14-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1177\/2192568217694141"},{"key":"bibr15-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/BSD.0b013e31825dd542"},{"key":"bibr16-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1186\/s13018-020-02111-9"},{"key":"bibr17-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1186\/s12891-021-04736-1"},{"key":"bibr18-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1177\/21925682211018467"},{"key":"bibr19-21925682221110142","doi-asserted-by":"publisher","DOI":"10.31616\/asj.2018.0276"},{"key":"bibr20-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1007\/s00276-021-02865-9"},{"key":"bibr21-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-198904000-00004"},{"key":"bibr22-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1097\/01.brs.0000144355.50660.65"},{"key":"bibr23-21925682221110142","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-012-2199-x"}],"container-title":["Global 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