{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,26]],"date-time":"2026-04-26T03:59:47Z","timestamp":1777175987493,"version":"3.51.4"},"reference-count":18,"publisher":"FapUNIFESP (SciELO)","issue":"12","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. Assoc. Med. Bras."],"abstract":"<jats:p>SUMMARY  OBJECTIVE; Compare the outcome of spinal deformity correction between Ti-Ti and CrCo-Ti rods for the treatment of spinal Adolescent Idiopathic Scoliosis (AIS) using rods mentioned with all pedicle screws and translation technique.  METHOD; 59 patients operated for spinal deformity (Lenke 1 or 2) AIS. The patients were divided into two groups by random allocation using Ti-Ti rods (n = 29) and CrCo-Ti rods (n = 30) and the alone difference among them in the surgical procedure was rod material (Ti-Ti or CrCo-Ti rods) and finally, radiological outcomes were compared preoperatively, postoperatively and at last follow-up for 12 months.  RESULTS; Patients\u2019 main curve correction after surgical procedure regardless type of rod was 48.95\u00b111.04 (13-75) degree. Success rate of spinal deformity correction following surgical procedure regardless of type of administered rod was 86.76 \u00b1 11.30 percent (62.5-100%). Mean of deformity correction rate was 91.49\u00b110.67% using CrCo-Ti rods versus 81.86\u00b19.88% using Ti-Ti rods (P-value=0.01). Angle change was 3.29\u00b16.60 for kyphosis angle and 0.59\u00b17.76 for lordosis angle. Rate of main curve correction was not significantly different considering patients\u2019 gender (P-value0.657). Main curve correction success rate was in association with patients\u2019 age and type of rod (P-value=0.054, r=-1.863 and P-value=0.001, r=8.865 respectively).  CONCLUSION; CrCo-Ti rods have the ability to produce higher correction rates in AIS compared to Ti-Ti rod of the same diameter. CrCo-Ti rods provide significant and stable spinal correction, especially in correction of main curve. This rate was associated with patients\u2019 age and type of rod administered but not gender.<\/jats:p>","DOI":"10.1590\/1806-9282.64.12.1085","type":"journal-article","created":{"date-parts":[[2018,12,15]],"date-time":"2018-12-15T13:24:12Z","timestamp":1544880252000},"page":"1085-1090","source":"Crossref","is-referenced-by-count":12,"title":["Cobalt chromium-Titanium rods versus Titanium-Titanium rods for treatment of adolescent idiopathic scoliosis; which type of rod has better postoperative outcomes?"],"prefix":"10.1590","volume":"64","author":[{"given":"Mohammad Reza","family":"Etemadifar","sequence":"first","affiliation":[{"name":"Isfahan University of Medical Sciences,  Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ali","family":"Andalib","sequence":"additional","affiliation":[{"name":"Isfahan University of Medical Sciences,  Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1455-4114","authenticated-orcid":false,"given":"Abbas","family":"Rahimian","sequence":"additional","affiliation":[{"name":"Isfahan University of Medical Sciences,  Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seyed Mohamad Hossein Tabatabaei","family":"Nodushan","sequence":"additional","affiliation":[{"name":"Isfahan University of Medical Sciences,  Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","published-online":{"date-parts":[[2018,12]]},"reference":[{"issue":"2","key":"ref1","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1097\/00007632-200001150-00010","article-title":"A three-dimensional radiographic comparison of Cotrel-Dubousset and Colorado instrumentations for the correction of idiopathic scoliosis","volume":"25","author":"Delorme S","year":"2000","journal-title":"Spine (Phila Pa 1976)"},{"issue":"9623","key":"ref2","doi-asserted-by":"crossref","first-page":"1527","DOI":"10.1016\/S0140-6736(08)60658-3","article-title":"Adolescent idiopathic scoliosis","volume":"371","author":"Weinstein SL","year":"2008","journal-title":"Lancet"},{"issue":"2","key":"ref3","first-page":"313","article-title":"The role of genetic factors in the etiology of idiopathic scoliosis","volume":"14","author":"Miller N","year":"2000","journal-title":"Spine"},{"issue":"1","key":"ref4","doi-asserted-by":"crossref","first-page":"2","DOI":"10.1186\/1748-7161-1-2","article-title":"Adolescent idiopathic scoliosis: natural history and long term treatment effects","volume":"1","author":"Asher MA","year":"2006","journal-title":"Scoliosis"},{"key":"ref5","author":"Riedel MD","year":"2012"},{"issue":"2","key":"ref6","doi-asserted-by":"crossref","first-page":"E70","DOI":"10.1097\/BSD.0b013e31826a0f19","article-title":"Would CoCr rods provide better correctional forces than stainless steel or titanium for rigid scoliosis curves?","volume":"26","author":"Serhan H","year":"2013","journal-title":"J Spinal Disord Tech"},{"issue":"Suppl 4","key":"ref7","doi-asserted-by":"crossref","first-page":"S446","DOI":"10.1007\/s00586-014-3341-8","article-title":"Use of the Universal Clamp in adolescent idiopathic scoliosis","volume":"23","author":"Sales de Gauzy J","year":"2014","journal-title":"Eur Spine J"},{"issue":"2","key":"ref8","doi-asserted-by":"crossref","first-page":"138","DOI":"10.4047\/jap.2014.6.2.138","article-title":"Physico-mechanical properties and prosthodontic applications of Co-Cr dental alloys: a review of the literature","volume":"6","author":"Al Jabbari YS","year":"2014","journal-title":"J Adv Prosthodont"},{"key":"ref9","first-page":"20","article-title":"Cobalt chromium versus titanium alloy: has the change in scoliosis implant material improved deformity correction?","volume":"96","author":"Miller A","year":"2018","journal-title":"Orthopaedic Proceedings"},{"issue":"6","key":"ref10","doi-asserted-by":"crossref","first-page":"1190","DOI":"10.1007\/s00586-014-3168-3","article-title":"CoCr rods provide better frontal correction of adolescent idiopathic scoliosis treated by all-pedicle screw fixation","volume":"23","author":"Lamerain M","year":"2014","journal-title":"Eur Spine J"},{"issue":"6","key":"ref11","doi-asserted-by":"crossref","first-page":"1732","DOI":"10.1007\/s00586-016-4838-0","article-title":"Titanium vs cobalt chromium: what is the best rod material to enhance adolescent idiopathic scoliosis correction with sublaminar bands?","volume":"26","author":"Angelliaume A","year":"2017","journal-title":"Eur Spine J."},{"issue":"2","key":"ref12","doi-asserted-by":"crossref","first-page":"146","DOI":"10.3171\/2011.4.SPINE10321","article-title":"Minimum 5-year follow-up results of skipped pedicle screw fixation for flexible idiopathic scoliosis","volume":"15","author":"Hwang CJ","year":"2011","journal-title":"J Neurosurg Spine"},{"key":"ref13","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1186\/1748-7161-6-13","article-title":"Increased rod stiffness improves the degree of deformity correction by segmental pedicle screw fixation in adolescent idiopathic scoliosis","volume":"6","author":"Abul-Kasim K","year":"2011","journal-title":"Scoliosis"},{"issue":"2","key":"ref14","doi-asserted-by":"crossref","first-page":"158","DOI":"10.1007\/s00586-008-0839-y","article-title":"Efficacy and safety of posteromedial translation for correction of thoracic curves in adolescent idiopathic scoliosis using a new connection to the spine: the Universal Clamp","volume":"18","author":"Mazda K","year":"2009","journal-title":"Eur Spine J"},{"issue":"5","key":"ref15","doi-asserted-by":"crossref","first-page":"425","DOI":"10.3340\/jkns.2016.59.5.425","article-title":"The mechanical effect of rod contouring on rod-screw system strength in spine fixation","volume":"59","author":"Acar N","year":"2016","journal-title":"J Korean Neurosurg Soc"},{"issue":"7","key":"ref16","doi-asserted-by":"crossref","first-page":"E857","DOI":"10.1097\/BSD.0000000000000413","article-title":"All-pedicle screw fixation with 6-mm-diameter cobalt-chromium rods provides optimized sagittal correction of adolescent idiopathic scoliosis","volume":"30","author":"Lamerain M","year":"2017","journal-title":"Clin Spine Surg"},{"issue":"18","key":"ref17","doi-asserted-by":"crossref","first-page":"2059","DOI":"10.1097\/00007632-200209150-00018","article-title":"Correction of thoracic adolescent idiopathic scoliosis with segmental hooks, rods, and Wisconsin wires posteriorly: it's bad and obsolete, correct?","volume":"27","author":"Bridwell KH","year":"2002","journal-title":"Spine (Phila Pa 1976)"},{"issue":"7","key":"ref18","doi-asserted-by":"crossref","first-page":"962","DOI":"10.1016\/j.spinee.2017.02.005","article-title":"Rod stiffness as a risk factor of proximal junctional kyphosis after adult spinal deformity surgery: comparative study between cobalt chrome multiple-rod constructs and titanium alloy two-rod constructs","volume":"17","author":"Han S","year":"2017","journal-title":"Spine J"}],"container-title":["Revista da Associa\u00e7\u00e3o M\u00e9dica Brasileira"],"original-title":[],"link":[{"URL":"http:\/\/www.scielo.br\/pdf\/ramb\/v64n12\/1806-9282-ramb-64-12-1085.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2018,12,21]],"date-time":"2018-12-21T19:30:33Z","timestamp":1545420633000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_arttext&pid=S0104-42302018001201085&lng=en&tlng=en"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,12]]},"references-count":18,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2018,12]]}},"alternative-id":["S0104-42302018001201085"],"URL":"https:\/\/doi.org\/10.1590\/1806-9282.64.12.1085","relation":{},"ISSN":["1806-9282","0104-4230"],"issn-type":[{"value":"1806-9282","type":"electronic"},{"value":"0104-4230","type":"print"}],"subject":[],"published":{"date-parts":[[2018,12]]}}}