Transient Myopia as a Complication after Complex Orbital Reconstructions with Computer-Assisted Navigation Surgery

2008 ◽  
Vol 121 (5) ◽  
pp. 283e-287e ◽  
Author(s):  
Nils-Claudius Gellrich ◽  
Chung-Chih Yu ◽  
Christoph Zizelmann ◽  
Alexander Schramm
Keyword(s):  
Computer Assisted ◽  
Navigation Surgery ◽  
Assisted Navigation ◽  
Transient Myopia

scholarly journals Computer-Assisted Navigation Surgery in Oral and Maxillofacial Surgery

2021 ◽  
pp. 841-862
Author(s):  
Shintaro Sukegawa ◽  
Takahiro Kanno
Keyword(s):  
Maxillofacial Surgery ◽  
Computer Assisted Surgery ◽  
Oral And Maxillofacial Surgery ◽  
Computer Assisted ◽  
Navigation Systems ◽  
Navigation Surgery ◽  
Assisted Navigation ◽  
Surgical Options ◽  
Application Of Cas ◽  
Patient Stress

AbstractComputer-assisted surgery (CAS) and navigation offers significant improvements in patient orientation and safety in every facet of our specialty of maxillofacial surgery. Ranging from precisely planned orthognathic procedures to the removal of foreign bodies requiring extremely flexible surgical options, and from minimally invasive dental implantology procedures to radical tumor resections of the skull base, they have made their mark for improving the procedure safety, predictability, and accuracy of surgery and options for intraoperative adaptations. In the future, the application of CAS is expected to further reduce operative risks and surgery time, accompanied by a considerable decrease in patient stress.Navigation systems are effective for delicate and accurate oral and maxillofacial surgery, neurosurgery, otolaryngology, and orthopedic surgery.This section presents an overview of available navigation systems and their applications with a focus on clinical utility and the solutions they offer for problems/challenges in the field of oral and maxillofacial surgery.

Correction of Orbital Wall Fracture Close to the Optic Canal Using Computer-Assisted Navigation Surgery

2013 ◽  
Vol 24 (4) ◽  
pp. 1118-1122 ◽  
Author(s):  
Yong-Ha Kim ◽  
Dong-Woo Jung ◽  
Tae Gon Kim ◽  
Jun Ho Lee ◽  
Il-Kug Kim
Keyword(s):  
Optic Canal ◽  
Computer Assisted ◽  
Navigation Surgery ◽  
Assisted Navigation ◽  
Orbital Wall

scholarly journals Registration process for real-time evaluation in biomedical application

2016 ◽  
Vol 7 (1) ◽  
pp. 8
Author(s):  
T. Vancouillie ◽  
Jan Victor ◽  
Patrick De Baets ◽  
Matthias Verstraete ◽  
Stijn Herregodts
Keyword(s):  
Evaluation Method ◽  
Biomedical Application ◽  
Knee Kinematics ◽  
Testing Procedure ◽  
Computer Assisted ◽  
Navigation Surgery ◽  
Theoretical Derivation ◽  
Prosthetic Devices ◽  
Assisted Navigation ◽  
Registration Process

The study of knee kinematics is used to analyse joint disorders, design of prosthetic devices, impact of surgical treatments and in general the study of the locomotion. In order to allow researchers to immediately visualise and interpret the influence of certain changes during tests and between different test setups, a testing procedure that allows on-line evaluation of knee kinematics, based on the principles of computer assisted navigation surgery, is established. A major challenge for this evaluation method is to identify the position of the bone relative to the attached markers prior to testing. In order to deal with this challenge a registration process is introduced. The theoretical derivation and optimisation of this registration process is derived and afterwards applied to a practical testing environment.

scholarly journals A Splint-to-CT Data Registration Strategy for Maxillary Navigation Surgery

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Shinsuke Yamamoto ◽  
Shigeo Hara ◽  
Toshihiko Takenobu
Keyword(s):  
Reference Frame ◽  
Computer Assisted ◽  
Navigation Surgery ◽  
Assisted Navigation ◽  
Craniomaxillofacial Surgery ◽  
Data Registration ◽  
Custom Made ◽  
Preoperative Ct ◽  
Maxillary Surgery ◽  
Ct Data

Computer-assisted navigation plays an important role in modern craniomaxillofacial surgery. Although headpins and skull posts are widely used for the fixation of the reference frame, they require the use of invasive procedures. Headbands are easily displaced intraoperatively, thus reducing the accuracy of the surgical outcome. This study reported the utility of a novel splint integrated with a reference frame and registration markers for maxillary navigation surgery. A maxillary splint with a 10 cm resin handle was fabricated before surgery, to fix the reference frame to the splint. The splint was set after the incorporation of fiducial gutta-percha markers into both the splint and resin handle for marker-based pair-point registration. A computed tomography (CT) scan was acquired for preoperative CT-based planning. A marker-based pair-point registration procedure can be completed easily and noninvasively using this custom-made integrated splint, and maxillary navigation surgery can be performed with high accuracy. This method also provides maximum convenience for the surgeon, as the splint does not require reregistration, and can be removed temporarily when required. The splint-to-CT data registration strategy has potential applicability not only for maxillary surgery but also for otolaryngologic surgery, neurosurgery, and surgical repair after craniofacial trauma.

Indication and Application of Computer-Assisted Navigation in the HURS Craniofacial Unit: 2 Years’ Experience

2014 ◽  
Vol 75 (S 02) ◽  
Author(s):  
S. Heredero ◽  
J. Solivera ◽  
A. Candau ◽  
A. Dean ◽  
F. Alamillos ◽  
...  
Keyword(s):  
Computer Assisted ◽  
Assisted Navigation

Cervical 1-2 Posterior Instrumented Fusion Utilizing Computer-Assisted Navigation With Harvest of Rib Strut Autograft: 2-Dimensional Operative Video

2021 ◽  
Author(s):  
Timothy J Yee ◽  
Michael J Strong ◽  
Matthew S Willsey ◽  
Mark E Oppenlander
Keyword(s):  
Surface Area ◽  
Odontoid Process ◽  
Odontoid Fracture ◽  
Patient Specific ◽  
Computer Assisted ◽  
Type Ii ◽  
Instrumented Fusion ◽  
Assisted Navigation ◽  
Patient Consent ◽  
Posterior Instrumented Fusion

Abstract Nonunion of a type II odontoid fracture after the placement of an anterior odontoid screw can occur despite careful patient selection. Countervailing factors to successful fusion include the vascular watershed zone between the odontoid process and body of C2 as well as the relatively low surface area available for fusion. Patient-specific factors include osteoporosis, advanced age, and poor fracture fragment apposition. Cervical 1-2 posterior instrumented fusion is indicated for symptomatic nonunion. The technique leverages the larger posterolateral surface area for fusion and does not rely on bony growth in a watershed zone. Although loss of up to half of cervical rotation is expected after C1-2 arthrodesis, this may be better tolerated in the elderly, who may have lower physical demands than younger patients. In this video, we discuss the case of a 75-yr-old woman presenting with intractable mechanical cervicalgia 7 mo after sustaining a type II odontoid fracture and undergoing anterior odontoid screw placement at an outside institution. Cervical radiography and computed tomography exhibited haloing around the screw and nonunion across the fracture. We demonstrate C1-2 posterior instrumented fusion with Goel-Harms technique (C1 lateral mass and C2 pedicle screws), utilizing computer-assisted navigation, and modified Sonntag technique with rib strut autograft.  Posterior C1-2-instrumented fusion with rib strut autograft is an essential technique in the spine surgeon's armamentarium for the management of C1-2 instability, which can be a sequela of type II dens fracture. Detailed video demonstration has not been published to date.  Appropriate patient consent was obtained.

Point-to-Point Computer-Assisted Navigation for Precise Transfer of Planned Zygoma Osteotomies from the Stereolithographic Model into Reality

2006 ◽  
Vol 64 (3) ◽  
pp. 550-559 ◽  
Author(s):  
Clemens Klug ◽  
Kurt Schicho ◽  
Oliver Ploder ◽  
Kaan Yerit ◽  
Franz Watzinger ◽  
...  
Keyword(s):  
Computer Assisted ◽  
Assisted Navigation ◽  
Stereolithographic Model ◽  
Point To Point
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