{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T21:31:29Z","timestamp":1777498289677,"version":"3.51.4"},"reference-count":22,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2023,2,27]],"date-time":"2023-02-27T00:00:00Z","timestamp":1677456000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Children's Orthopaedics"],"published-print":{"date-parts":[[2023,4]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>Managing severe scoliosis is challenging and risky with a significant complication rate regardless of treatment strategy. In this retrospective comparative study, we report our results using a three-rod compared to two-rod construct in the surgical treatment of severe spine deformities to investigate which technique is safer, and which provides superior radiological outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Forty-six consecutive patients undergoing posterior spine fusion for scoliosis between 2006 and 2017 were identified in our institutional records. Inclusion criteria were minimum coronal deformity of 90\u00b0, age\u2009&lt;\u200918\u2009years at the time of surgery and a minimum 2\u2009years of follow-up. Radiographic and clinical parameters, as well as post-operative complications were compared between the two groups.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>There were 21 patients in the three-rod group and 25 in the two-rod group. The mean preoperative major coronal deformity was 100\u00b0\u00b1\u20099 and 102\u00b0\u00b1\u200910 in the three-rod and two-rod, respectively ( p\u2009=\u20090.6). The average major curve correction was 51% and 59% in three-rod and two-rod groups, respectively ( p\u2009=\u20090.03). The post-operative thoracic kyphosis was 30\u00b0\u00b1\u200911 and 21\u00b0\u00b1\u200912 in the three-rod and the two-rod groups, respectively ( p\u2009=\u20090.01). The surgical time was 476\u2009\u00b1\u200952 and 387\u2009\u00b1\u200984\u2009min in three-rod and two-rod, respectively ( p\u2009&lt;\u20090.01). One patient in the two-rod cohort showed permanent post-operative sensory deficit. There were three unplanned returns to operating theater in the two-rod group.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>Coronal correction was better with two-rod, whereas sagittal balance was superior with three-rod. Both techniques achieved balanced spine treating severe scoliosis. The two-rod technique was associated with a higher likelihood of requiring revision surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of evidence:<\/jats:title>\n                    <jats:p>level 3.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/18632521231156438","type":"journal-article","created":{"date-parts":[[2023,2,27]],"date-time":"2023-02-27T05:09:15Z","timestamp":1677474555000},"page":"148-155","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["A comparison of three- and two-rod constructs in the correction of severe pediatric scoliosis"],"prefix":"10.1177","volume":"17","author":[{"given":"Masayoshi","family":"Machida","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, ON, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Brett","family":"Rocos","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, ON, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Reinhard","family":"Zeller","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, ON, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7427-1733","authenticated-orcid":false,"given":"David E","family":"Lebel","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, The Hospital for Sick Children, Toronto, ON, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2023,2,27]]},"reference":[{"key":"bibr1-18632521231156438","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-196244040-00001"},{"key":"bibr2-18632521231156438","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0000000000000439"},{"key":"bibr3-18632521231156438","doi-asserted-by":"publisher","DOI":"10.1186\/1749-799X-3-26"},{"key":"bibr4-18632521231156438","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e31826c63cb"},{"key":"bibr5-18632521231156438","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0000000000003274"},{"key":"bibr6-18632521231156438","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-016-4848-y"},{"key":"bibr7-18632521231156438","doi-asserted-by":"publisher","DOI":"10.1016\/j.jspd.2014.05.004"},{"key":"bibr8-18632521231156438","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e318269fab1"},{"key":"bibr9-18632521231156438","doi-asserted-by":"publisher","DOI":"10.1007\/s43390-021-00300-y"},{"key":"bibr10-18632521231156438","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e3181d9527e"},{"key":"bibr11-18632521231156438","volume-title":"New 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