scholarly journals Transconjunctival excision of an orbital conjunctival cyst using computer‐assisted 3‐D surgical planning in a dog

2021 ◽  
Vol 9 (7) ◽  
Author(s):  
Jessica B. Burn ◽  
András M. Komáromy ◽  
Dodd G. Sledge ◽  
Rebecca Smedley ◽  
Sarah E. Coe ◽  
...  
Author(s):  
Jessica Burn ◽  
Andras Komaromy ◽  
Dodd Sledge ◽  
Rebecca Smedley ◽  
Sarah Coe ◽  
...  

Investigation of exophthalmos and blood-colored discharge from the left ventral punctum in a dog was consistent with a conjunctival cyst. 3-D prints of the cyst and surrounding facial bones identified a successful transconjunctival approach without an orbitotomy and patency of the left lacrimal duct was re-established.


2020 ◽  
Vol 28 (2) ◽  
pp. 151-164
Author(s):  
Omar Breik ◽  
Matthew Idle ◽  
Timothy Martin ◽  
Prav Praveen ◽  
Satyesh Parmar

Author(s):  
Seung-Hyun Rhee ◽  
Seung-Hak Baek ◽  
Sang-Hun Park ◽  
Jong-Cheol Kim ◽  
Chun-Gi Jeong ◽  
...  

Abstract Backgrounds The purpose of this study is to discuss the total joint reconstruction surgery for a patient with recurrent ankylosis in bilateral temporomandibular joints (TMJs) using three-dimensional (3D) virtual surgical planning, computer-aided manufacturing (CAD/CAM)-fabricated surgical guides, and stock TMJ prostheses. Case presentation A 66-year-old female patient, who had a history of multiple TMJ surgeries, complained of severe difficulty in eating and trismus. The 3D virtual surgery was performed with a virtual surgery software (FACEGIDE, MegaGen implant, Daegu, South Korea). After confirmation of the location of the upper margin for resection of the root of the zygoma and the lower margin for resection of the ankylosed condyle, and the position of the fossa and condyle components of stock TMJ prosthesis (Biomet, Jacksonville, FL, USA), the surgical guides were fabricated with CAD/CAM technology. Under general anesthesia, osteotomy and placement of the stock TMJ prosthesis (Biomet) were carried out according to the surgical planning. At 2 months after the operation, the patient was able to open her mouth up to 30 mm without complication. Conclusion For a patient who has recurrent ankylosis in bilateral TMJs, total joint reconstruction surgery using 3D virtual surgical planning, CAD/CAM-fabricated surgical guides, and stock TMJ prostheses may be an effective surgical treatment option.


Author(s):  
Mark Hillecke ◽  
Marco Moscarelli ◽  
Nilesh Sutaria ◽  
Gianni Angelini ◽  
Fernando Bello

2018 ◽  
Vol 11 (1) ◽  
pp. 078-082 ◽  
Author(s):  
Kristopher M. Day ◽  
Paul M. Phillips ◽  
Larry A. Sargent

We describe a case of complex, posttraumatic skull and orbital deformities that were evaluated and treated with advanced computer technology, including virtual surgical planning, three-dimensional (3D) modeling, and printed patient custom implants (PCI) fabricated by 3D printing. A 50-year-old man presented to our craniofacial referral center 1 year after failed reduction of complex left orbital, zygomatic, and frontal bone fractures due to a motorcycle collision. The patient's chief complaint was debilitating diplopia in all fields of gaze. On examination, he had left enophthalmos, left canthal displacement, lower eyelid ectropion, vertical orbital dystopia, and a laterally and inferiorly displaced, comminuted zygoma with orbital rim and frontal bone defects. The normal orbit was mirrored to precisely guide repositioning of the globe, orbital reconstruction, and cranioplasty. Preinjury appearance with normal globe position was restored with complete resolution of diplopia. Modern 3D technology allows the surgeon to better analyze complex orbital deformities and precisely plan surgical correction with the option of printing a PCI. These techniques were successfully applied to resolve a case of debilitating diplopia and aesthetic deficits after facial trauma. Further application of advanced 3D computer technology can potentially improve the results of severe orbital and craniofacial trauma reconstruction.


2021 ◽  
Vol 11 ◽  
Author(s):  
Yi-Fan Kang ◽  
Xiao-Ming Lv ◽  
Shi-Yu Qiu ◽  
Meng-Kun Ding ◽  
Shang Xie ◽  
...  

ObjectiveMidface reconstruction is challenging for functional and esthetic reasons. The present study analyzed the effect of virtual surgical planning (VSP) of the deep circumflex iliac artery (DCIA) flap for midface reconstruction.Patients and MethodsThirty-four patients who underwent midface reconstruction with the DCIA flap were included in this retrospective study. Of the 34 patients, 16 underwent preoperative VSP, which used a three-dimensionally printed surgical guide, computer-assisted navigation system, and pre-bent titanium implants to transfer VSP into real-world surgery. The other 18 patients underwent traditional midface reconstruction. The following were compared between the two groups: bony contact rate in the buttress region (BCR), dental arch reconstruction rate (DAR), surgical approach, position of vascular anastomosis, and dental implantation rate. The independent-samples t-test and Fisher’s exact test were used for analysis. P < 0.05 was considered statistically significant.ResultsIn total, 12 males and 22 females were included in this study. All patients underwent midface reconstruction using the DCIA flap at the same institution. The median age of patients was 33 years (range: 16–68 years). The average BCR and DAR values in the VSP group were 59.4% ± 27.9% and 87.5% ± 18.9%, respectively, which were significantly higher compared with the non-VSP group (P = 0.049 and P = 0.004, respectively). The dental implantation rate in the VSP group (50.0%) was significantly higher compared with the non-VSP group (11.1%; P = 0.023). The intraoral approach for tumor ablation and vascular anastomosis was the most frequent choice in both groups. There was no significant difference between the two groups. All patients were satisfied with facial symmetry postoperatively.ConclusionsVSP could effectively augment the effect of midface reconstruction with the DCIA flap. Stronger bone contact in the buttress region and higher DAR provide more opportunity for dental implantation, which might be the best solution to improve masticatory function in patients with midface defects.


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