3D analysis of condylar remodelling and skeletal relapse following bilateral sagittal split advancement osteotomies

Xi, Tong; Schreurs, Ruud; Loon, B. van; Koning, Martien de; Bergé, Stefaan; Hoppenreijs, T.J.M.; Maal, T.J.J.

doi:10.1016/j.jcms.2015.02.006

Cited by 81 publications

(117 citation statements)

References 30 publications

(47 reference statements)

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“…Due to differences in study methodologies, however, a wide range of values have been reported . Furthermore, torsion of the condyle‐ramus segment during fixation of proximal and distal bony segments in mandibular surgery may provoke post‐surgical condylar remodelling, resorption and potential long‐term instability of surgical correction …”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9] Furthermore, torsion of the condyle-ramus segment during fixation of proximal and distal bony segments in mandibular surgery may provoke post-surgical condylar remodelling, resorption and potential long-term instability of surgical correction. [10][11][12][13][14][15] While studies have examined the accuracy of VSP-guided surgeries through the measurement of distal segment landmarks, no studies to our knowledge have quantified post-surgical condylar position changes in cases planned using VSP vs. conventional methods. In particular, there have been no reports on condylar positional changes identified using superimposed pre-and post-surgical 3D images, which overcomes many of the limitations and inaccuracies of measuring skeletal changes in 2D images.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of condylar position in orthognathic surgery cases treated with virtual surgical planning vs. conventional model planning

Wan

Jackson

Chung

et al. 2019

Orthod Craniofacial Res

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Structured Abstract Objectives To assess the effect of virtual surgical planning (VSP) on the accuracy of condylar seating in surgical cases involving Bilateral Sagittal Split Osteotomy (BSSO). An additional aim was to quantify differences between actual surgical outcome and planned virtual outcome. Setting and sample population A private practice in Charlotte North Carolina. Twenty‐five consecutively operated subjects prepared with VSP and twenty consecutively subjects operated with conventional surgery planning were enrolled. Material and Methods Cone beam computed tomography (CBCT) scans were obtained before surgery (T1) and post‐surgery after splint removal (T2). The T1 and T2 CBCTs were superimposed on the anterior cranial base using voxel‐based registration. Three dimensional (3D) models were built and oriented to a 3D Frankfurt horizontal. Displacement of corresponding condylar landmarks was measured. Results No significant difference was found between the VSP and conventional group in the magnitude of translation or rotation of the condyles following surgery. VSP surgical outcomes differed significantly from predicted positions at all landmarks. Virtual surgical planning does not prevent changes to condylar position as a result of surgery. Actual surgical results differed significantly from VSP‐predicted outcomes. Conclusions Virtual surgical planning did not reduce the changes to condylar position and angulation that resulted from conventionally planned orthognathic surgery.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of condylar position in orthognathic surgery cases treated with virtual surgical planning vs. conventional model planning

Wan

Jackson

Chung

et al. 2019

Orthod Craniofacial Res

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“…En la selección de pacientes para los estudios observacionales revisados no existen grandes diferen-cias en cómo los autores determinan los criterios de inclusión, excepto en los estudios de Nogami et al (2016) y Gomes et al (2017) que aclaran que los pacientes incluidos eran pacientes de sexo femenino que presentaban osteoartritis previa. En relación a los criterios de exclusión, los estudios presentan en general los mismos parámetros, excluyendo pacientes que presentaran síndromes de las bases craneales (fisuras labio palatinas, por ejemplo), enfermedades sistémicas de carácter degenerativo o intervenciones previas en la articulación temporomandibular (Kerstens et al, 1990;Merkx & Van Damme, 1994;de Mol van Otterloo et al, 1993;Bouwman et al, 1994Bouwman et al, , 1997De Clercq et al, 1994;Scheerlinck et al, 1994;Cutbirth et al, 1998;Hoppenreijs et al, 1998;Hwang et al, 2000aHwang et al, ,b, 2004Wolford et al, 2002Wolford et al, , 2003Borstlap et al, 2004;Wohlwender et al, 2011;Kobayashi et al, 2012;Xi et al, 2015;Nogami et al;Gomes et al).…”

Section: Resultados Y Discusiónunclassified

Reabsorción Condilar como Complicación Postoperatoria en Pacientes Sometidos a Cirugía Ortognática. Revisión Narrativa

Zerené-Reyes

Zilleruelo-Pozo

Vergara-Iturriaga

et al. 2019

Int. J. Odontostomat.

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ZERENÉ, R. J.; ZILLERUELO, P. M. J.; VERGARA, I. M.; NOGUERA, P. A. & SOLÉ, V. P. Reabsorción condilar como complicación postoperatoria en pacientes sometidos a cirugía ortognática. Revisión narrativa. Int. J. Odontostomat., 13(3):251-257, 2019. RESUMEN:La reabsorción condilar como complicación postoperatoria en cirugía ortognática es una causa frecuente de recidiva de anomalías dentomaxilares, existiendo diversos factores que se relacionan con su aparición. El objetivo de este estudio fue describir mediante una revisión narrativa la reabsorción condilar como complicación postoperatoria en cirugía ortognática. Se realizó una búsqueda electrónica de la literatura en las bases de datos electrónicas PubMed, EBSCO, TripDatabase y Epistemonikos sin límite de años, en idioma inglés y español, incluyendo revisiones sistemáticas, ensayos clínicos y estudios observacionales. Se excluyeron reportes de casos, estudios en animales y aquellos que no relacionaran la complicación con cirugía ortognática. Se evaluaron los estudios según grado de recomendación y calidad de reporte. Veintiún artículos fueron seleccionados según los criterios de selección establecidos en esta revisión. La literatura reportada sugiere que la reabsorción condilar es una patología de frecuencia relativa en pacientes postoperados de cirugía ortognática (1,4-32 % de los casos) y que está asociada a factores de riesgo preoperatorios tales como género, edad, tipo de anomalía dentomaxilar y técnica quirúrgica utilizada. La reabsorción condilar es una complicación postoperatoria a cirugía ortognática que debemos considerar en la planificación del tratamiento e identificar pacientes con factores de riesgo. Luego de la intervención quirúrgica es de vital importancia realizar un seguimiento estricto a este tipo de pacientes e identificar de forma temprana cambios clínicos y radiográficos. Finalmente, es importante seguir investigando sobre esta materia para establecer criterios de prevención y diagnóstico, con mayor claridad.PALABRAS CLAVE: cirugía ortognática, cóndilo mandibular, articulación temporomandibular.

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“…Moreover, if percent volume loss is in the future is used to differentiate pathologic from physiologic condylar resorption, CBCT will be very valuable in that diagnostic process. [27]…”

Section: Diagnosis and Trackingmentioning

confidence: 99%

“…They, therefore, suggested considering a 17% loss of the condylar volume as the lower threshold for diagnosing PCR, but stated a larger sample size is needed to be more conclusive. [27]…”

Section: Comparison To Physiologic Condylar Resorption (Or Condylar Rmentioning

confidence: 99%

Idiopathic condylar resorption: The current understanding in diagnosis and treatment

Young¹

2017

J Indian Prosthodont Soc

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Idiopathic condylar resorption (ICR) is a condition with no known cause, which manifests as progressive malocclusion, esthetic changes, and often pain. Cone-beam computed tomography and magnetic resonance imaging are the most valuable imaging methods for diagnosis and tracking, compared to the less complete and more distorted images provided by panoramic radiographs, and the higher radiation of 99mtechnetium-methylene diphosphonate. ICR has findings that overlap with osteoarthritis, inflammatory arthritis, physiologic resorption/remodeling, congenital disorders affecting the mandible, requiring thorough image analysis, physical examination, and history-taking. Correct diagnosis and determination of whether the ICR is active or inactive are essential when orthodontic or prosthodontic treatment is anticipated as active ICR can undo those treatments. Several treatments for ICR have been reported with the goals of either halting the progression of ICR or correcting the deformities that it caused. These treatments have varying degrees of success and adverse effects, but the rarity of the condition prevents any evidence-based recommendations.

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3D analysis of condylar remodelling and skeletal relapse following bilateral sagittal split advancement osteotomies

Cited by 81 publications

References 30 publications

Comparison of condylar position in orthognathic surgery cases treated with virtual surgical planning vs. conventional model planning

Comparison of condylar position in orthognathic surgery cases treated with virtual surgical planning vs. conventional model planning

Reabsorción Condilar como Complicación Postoperatoria en Pacientes Sometidos a Cirugía Ortognática. Revisión Narrativa

Idiopathic condylar resorption: The current understanding in diagnosis and treatment

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