{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T04:15:37Z","timestamp":1783484137292,"version":"3.55.0"},"reference-count":21,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T00:00:00Z","timestamp":1783296000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T00:00:00Z","timestamp":1783468800000},"content-version":"vor","delay-in-days":2,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100009827","name":"Alexandria University","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100009827","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Maxillofac Plast Reconstr Surg"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Aim<\/jats:title>\n                    <jats:p>To evaluate the accuracy, safety, and short-term functional outcomes of a patient-specific arthroplasty guide for the management of paediatric Temporomandibular Joint Ankylosis (TMJ-A).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A prospective case series study was conducted on 7 children with TMJ-A. Virtual surgical planning and CAD\/CAM fabrication were used to design a patient-specific arthroplasty guide with narrower osteotomy slits (width 5\u00a0mm) to allow precise bone removal and improved condylar fit. Preoperative and postoperative tomographic scans were utilized to measure the procedural accuracy of the computer-assisted operation. Functional outcomes included complication rate and maximal interincisal opening (MIO).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>All children achieved satisfactory intraoperative mouth opening (&gt;\u200930\u00a0mm). No intraoperative injury to the skull base or neurovascular structures was encountered. A 2.36\u2009\u00b1\u20090.18\u00b0 of SMA deviation was reported on the right side, and 1.90\u2009\u00b1\u20090.46\u00b0 on the left SMA. Regarding the linear VRH, 1.57\u2009\u00b1\u20090.33\u00a0mm deviation was reported in the right side, and 0.95\u2009\u00b1\u20090.46\u00a0mm in the left ramus length. Good agreement between planned and postoperative measurements for both parameters. Temporary facial nerve weakness occurred in 1 patient, which resolved within 8 weeks.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Patient-specific arthroplasty guide with direction-dictating slits allowed accurate and safe gap arthroplasty in paediatric cohort, facilitating stable intraoperative and early postoperative outcomes. This technique may reduce surgical variability and improve safety in paediatric TMJ surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial Registration<\/jats:title>\n                    <jats:p>\n                      Retrospective registration was performed at clinicaltrials.gov [\n                      <jats:italic>NCT07320911<\/jats:italic>\n                      \/2026-1-6].\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s40902-026-00518-8","type":"journal-article","created":{"date-parts":[[2026,7,5]],"date-time":"2026-07-05T23:14:32Z","timestamp":1783293272000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Patient-specific arthroplasty guide in paediatric temporomandibular joint ankylosis management. 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Trial registration was performed, with registration ID: NCT07320911. The study adhered to the Declaration of Helsinki guidelines during its conduct. All patients signed informed consent before the start of the treatment protocol. All methods were carried out in accordance with the Helsinki Declaration guidelines.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"<!--Emphasis Type='Bold' removed-->Ethics approval and consent to participate"}},{"value":"All patients signed informed consent before the start of the treatment protocol and have given consent for the use of medical images and records for publication and scientific purposes.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"18"}}