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Orbital form analysis: problems with design and positioning of precontoured orbital implants: a serial study using post-processed clinical CT data in unaffected orbits.
Int J Oral Maxillofac Surg. 2010 Jul; 39(7):666-72.IJ

Abstract

Inter-individual size and shape (form) variation for the orbital floor and medial wall was assessed and compared with its posterior partition. Reconstruction of the posterior partition is known to be a surgical challenge in complex orbital defect repair when using standard manual implant contouring and positioning techniques. The size variation of both regions was assessed, alone and combined, in statistical form analysis using three-dimensional computer models of left and mirrored right orbits, obtained from 70 clinical computed tomography (CT) scans of adult European Caucasians with unaffected orbits. Major shape and size variability for both regions was observed, but to a larger extent for the entire orbital floor and medial wall, with males having significantly larger regions but with no differing shape patterns. Statistical modeling was used to identify characteristic shape patterns in given orbits. The size, shape and positioning of precontoured implants are decisive criteria for the adequate repair of complex orbital defects. The results indicate that optimal form conditions for prefabricated implants exist in a restricted area corresponding to the transition of the posterior orbital floor and medial wall.

Authors+Show Affiliations

AO Research Institute Davos, Davos Platz, Switzerland. lukas.kamer@aofoundation.orgNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20418061

Citation

Kamer, L, et al. "Orbital Form Analysis: Problems With Design and Positioning of Precontoured Orbital Implants: a Serial Study Using Post-processed Clinical CT Data in Unaffected Orbits." International Journal of Oral and Maxillofacial Surgery, vol. 39, no. 7, 2010, pp. 666-72.
Kamer L, Noser H, Schramm A, et al. Orbital form analysis: problems with design and positioning of precontoured orbital implants: a serial study using post-processed clinical CT data in unaffected orbits. Int J Oral Maxillofac Surg. 2010;39(7):666-72.
Kamer, L., Noser, H., Schramm, A., & Hammer, B. (2010). Orbital form analysis: problems with design and positioning of precontoured orbital implants: a serial study using post-processed clinical CT data in unaffected orbits. International Journal of Oral and Maxillofacial Surgery, 39(7), 666-72. https://doi.org/10.1016/j.ijom.2010.03.005
Kamer L, et al. Orbital Form Analysis: Problems With Design and Positioning of Precontoured Orbital Implants: a Serial Study Using Post-processed Clinical CT Data in Unaffected Orbits. Int J Oral Maxillofac Surg. 2010;39(7):666-72. PubMed PMID: 20418061.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Orbital form analysis: problems with design and positioning of precontoured orbital implants: a serial study using post-processed clinical CT data in unaffected orbits. AU - Kamer,L, AU - Noser,H, AU - Schramm,A, AU - Hammer,B, Y1 - 2010/04/24/ PY - 2009/02/03/received PY - 2010/02/03/revised PY - 2010/03/16/accepted PY - 2010/4/27/entrez PY - 2010/4/27/pubmed PY - 2010/10/30/medline SP - 666 EP - 72 JF - International journal of oral and maxillofacial surgery JO - Int J Oral Maxillofac Surg VL - 39 IS - 7 N2 - Inter-individual size and shape (form) variation for the orbital floor and medial wall was assessed and compared with its posterior partition. Reconstruction of the posterior partition is known to be a surgical challenge in complex orbital defect repair when using standard manual implant contouring and positioning techniques. The size variation of both regions was assessed, alone and combined, in statistical form analysis using three-dimensional computer models of left and mirrored right orbits, obtained from 70 clinical computed tomography (CT) scans of adult European Caucasians with unaffected orbits. Major shape and size variability for both regions was observed, but to a larger extent for the entire orbital floor and medial wall, with males having significantly larger regions but with no differing shape patterns. Statistical modeling was used to identify characteristic shape patterns in given orbits. The size, shape and positioning of precontoured implants are decisive criteria for the adequate repair of complex orbital defects. The results indicate that optimal form conditions for prefabricated implants exist in a restricted area corresponding to the transition of the posterior orbital floor and medial wall. SN - 1399-0020 UR - https://www.unboundmedicine.com/medline/citation/20418061/Orbital_form_analysis:_problems_with_design_and_positioning_of_precontoured_orbital_implants:_a_serial_study_using_post_processed_clinical_CT_data_in_unaffected_orbits_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0901-5027(10)00098-6 DB - PRIME DP - Unbound Medicine ER -