11 results on '"Tonellini G"'
Search Results
2. Post-traumatic zygoma and orbital walls reconstruction: integration between surgical navigation and stereolitographic models
- Author
-
Tonellini, G., Novelli, G., Mazzoleni, F., Sozzi, D., and Bozzetti, A.
- Published
- 2013
- Full Text
- View/download PDF
3. Virtual planning and navigation for mandibular reconstruction with fibula free flap
- Author
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Sozzi, D., Tonellini, G., Morganti, V., Novelli, G., and Bozzetti, A.
- Published
- 2013
- Full Text
- View/download PDF
4. Double Guided Surgery in All-on-4® Concept: When Ostectomy Is Needed
- Author
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Raquel Saez Vigo, Gabriele Tonellini, Giorgio Novelli, Tonellini, G, Vigo, R, and Novelli, G
- Subjects
medicine.medical_specialty ,MED/29 - CHIRURGIA MAXILLOFACCIALE ,Article Subject ,medicine.medical_treatment ,Bone crest ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Guided Surgery, All-on-4, Ostectomy ,030212 general & internal medicine ,Ostectomy ,General Dentistry ,Survival rate ,Reduction (orthopedic surgery) ,business.industry ,MED/28 - MALATTIE ODONTOSTOMATOLOGICHE ,030206 dentistry ,Surgery ,Implant placement ,lcsh:RK1-715 ,All-on-4 ,Maxilla ,lcsh:Dentistry ,Clinical Study ,Implant ,business - Abstract
Background. The rehabilitation of edentulous jaws with guided and flapless surgery applied to the All-on-4 concepts is a predictable treatment with a high implant and prosthetic survival rates, but there are several contraindications for this technique like when bone reduction is needed due to a high smile line in the maxilla or when there is an irregular or thin bone crest. Purpose. To report a technique with double guided surgery for bone reduction and implant placement with the All-on-4 concept. Materials and Methods. 7 patients were included in the study. Guided implant planning was performed using CBCT, and the virtual templates were created with three dedicated software. Custom surgical templates were made for the ostectomy and for implants positioning. Results. 28 implants were placed using a double bone-supported surgical guide. The mean angular errors between the preoperative-planned implant and the postoperative-placed implant were 2.155° ± 2.03°; the mean distance errors between the planned and the placed implants were 0.763 mm ± 0.55 mm on the shoulder implant and 0.570 mm ± 0.40 mm on the apex implant. Conclusions. The results of our study indicate that this treatment is predictable with an excellent survival rate allowing excellent results even when bone reduction is mandatory.
- Published
- 2018
- Full Text
- View/download PDF
5. Orbital Osteoblastoma: Technical Innovations in Resection and Reconstruction Using Virtual Surgery Simulation
- Author
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Giorgio Novelli, Gabriele Tonellini, Marco Gramegna, Davide Sozzi, Gabriella Valente, Alberto Bozzetti, Pietro Boni, Novelli, G, Gramegna, M, Tonellini, G, Valente, G, Boni, P, Bozzetti, A, and Sozzi, D
- Subjects
medicine.medical_specialty ,MED/29 - CHIRURGIA MAXILLOFACCIALE ,genetic structures ,surgical navigation ,Benign tumor ,Resection ,virtual surgery simulation ,03 medical and health sciences ,0302 clinical medicine ,Osteoblastoma ,medicine ,orbital osteoblastoma ,osteoblastoma ,Posterior mandible ,business.industry ,rapid prototyping model ,030206 dentistry ,medicine.disease ,eye diseases ,Surgery ,medicine.anatomical_structure ,Otorhinolaryngology ,Orbital reconstruction ,030221 ophthalmology & optometry ,Clinical case ,Oral Surgery ,business ,Orbit (anatomy) - Abstract
Osteoblastoma is a benign tumor of bone, representing less than 1% of bone tumors. Craniomaxillofacial localizations account for up to 15% of the total and frequently involve the posterior mandible. Endo-orbital localization is very rare, with most occurring in young patients. Very few of these tumors become malignant. Orbital localization requires radical removal of the tumor followed by careful surgical reconstruction of the orbit to avoid subsequent aesthetic or functional problems. Here, we present a clinical case of this condition and describe a surgical protocol that uses and integrates state-of-the art technologies to achieve orbital reconstruction.
- Published
- 2016
6. Virtual surgery simulation in orbital wall reconstruction: Integration of surgical navigation and stereolithographic models
- Author
-
Gabriele Tonellini, Davide Sozzi, Giorgio Novelli, Alberto Bozzetti, Fabio Mazzoleni, Novelli, G, Tonellini, G, Mazzoleni, F, Bozzetti, A, and Sozzi, D
- Subjects
Male ,Models, Anatomic ,genetic structures ,Exophthalmos ,Biocompatible Materials ,Patient Care Planning ,User-Computer Interface ,Image Processing, Computer-Assisted ,Zygomatic Fractures ,Titanium ,Diplopia ,Preoperative planning ,Enophthalmos ,MED/37 - NEURORADIOLOGIA ,MED/28 - MALATTIE ODONTOSTOMATOLOGICHE ,Middle Aged ,MED/30 - MALATTIE APPARATO VISIVO ,Treatment Outcome ,medicine.anatomical_structure ,Surgery, Computer-Assisted ,Computer-Aided Design ,Female ,Oral Surgery ,medicine.symptom ,Orbit ,Orbit (anatomy) ,Adult ,medicine.medical_specialty ,MED/29 - CHIRURGIA MAXILLOFACCIALE ,MED/31 - OTORINOLARINGOIATRIA ,Young Adult ,Deformity ,medicine ,Humans ,Orbital Fractures ,Zygoma ,Orbital wall ,business.industry ,Reproducibility of Results ,orbital navigation, post traumatic orbital deformity, stereolithographic models, orbital reconstruction ,Plastic Surgery Procedures ,Surgical Mesh ,MED/27 - NEUROCHIRURGIA ,eye diseases ,Surgery ,Otorhinolaryngology ,Virtual planning ,Orbital Neoplasms ,business - Abstract
Purpose Correction of post traumatic orbital and zygomatic deformity is a challenge for maxillofacial surgeons. Integration of different technologies, such as software planning, surgical navigation and stereolithographic models, opens new horizons in terms of the surgeons' ability to tailor reconstruction to individual patients. The purpose of this study was to analyze surgical results, in order to verify the suitability, effectiveness and reproducibility of this new protocol. Methods Eleven patients were included in the study. Inclusion criteria were: unilateral orbital pathology; associated diplopia and enophthalmos or exophthalmos, and zygomatic deformities. Syndromic patients were excluded. Pre-surgical planning was performed with iPlan 3.0 CMF software and we used Vector Vision II (BrainLab, Feldkirchen, Germany) for surgical navigation. We used 1:1 skull stereolithographic models for all the patients. Orbital reconstructions were performed with a titanium orbital mesh. The results refer to: correction of the deformities, exophthalmos, enophthalmos and diplopia; correspondence between reconstruction mesh positioning and preoperative planning mirroring; and the difference between the reconstructed orbital volume and the healthy orbital volume. Results Correspondence between the post-operative reconstruction mesh position and the presurgical virtual planning has an average margin of error of less than 1.3 mm. In terms of en- and exophthalmos corrections, we have always had an adequate clinical outcome with a significant change in the projection of the eyeball. In all cases treated, there was a complete resolution of diplopia. The calculation of orbital volume highlighted that the volume of the reconstructed orbit, in most cases, was equal to the healthy orbital volume, with a positive or negative variation of less than 1 cm3. Conclusion The proposed protocol incorporates all the latest technologies to plan the virtual reconstruction surgery in detail. The results obtained from our experience are very encouraging and lead us to pursue this path.
- Published
- 2014
7. Surgical Navigator Recording Systems in Orbitozygomatic Traumatology
- Author
-
Gabriele Tonellini, Davide Sozzi, Giorgio Novelli, Alberto Bozzetti, Fabio Mazzoleni, Novelli, G, Tonellini, G, Mazzoleni, F, Sozzi, D, and Bozzetti, A
- Subjects
Male ,medicine.medical_specialty ,MED/29 - CHIRURGIA MAXILLOFACCIALE ,Facial Trauma ,Orthodontic Brackets ,medicine.medical_treatment ,Bone Screws ,Traumatology ,MED/31 - OTORINOLARINGOIATRIA ,Fracture Fixation, Internal ,Fracture fixation ,medicine ,Humans ,Maxillary central incisor ,Orbital Fractures ,MED/19 - CHIRURGIA PLASTICA ,Reduction (orthopedic surgery) ,Zygomatic Fractures ,Orthodontics ,Osteosynthesis ,Enophthalmos ,business.industry ,Orbitozygomatic Trauma, Orbitozygomatic Fracture, Navigation, Recording Navigation ,Navigation system ,Triangulation (computer vision) ,General Medicine ,Plastic Surgery Procedures ,MED/30 - MALATTIE APPARATO VISIVO ,Treatment Outcome ,Surgery, Computer-Assisted ,Otorhinolaryngology ,Female ,Surgery ,medicine.symptom ,Tomography, X-Ray Computed ,business - Abstract
An essential step in the navigation procedure is the recording of markers required for the triangulation of the intraoperative navigation system. The aim of this study was to describe the procedure and preliminary results of a simple methodology for the application of dental markers to achieve good triangulation of the navigation system in maxillofacial surgery, highlighting the indications, contraindications, and possible limitations. We analyzed results from a sample of 7 patients with orbital or orbitozygomatic fractures, who were subjected to surgical intervention for the reduction and synthesis of the zygomatic fracture and from 1 case of untreated orbital fracture with enophthalmos and diplopia. We used 2 different types of dental markers: in 3 patients, we used 4 or 5 ordinary orthodontic brackets, which we placed on their upper maxillary teeth, and in 1 patient, the hexagonal-headed screws used in osteosynthesis. The accuracy of the recording was assessed during surgery by checking healthy anatomic structures against computed tomographic images. By analyzing our clinical results in light of the most recent literature, we highlighted that the application of dental markers is comparable with the best recording systems requiring a discrepancy of less than 1 mm. From the preliminary clinical analysis of the results, we confirm that the introduction of this new and simple procedure enables the successful triangulation of the navigation system, which can be used whenever the use of a navigator is required.
- Published
- 2012
8. Double Guided Surgery in All-on-4 ® Concept: When Ostectomy Is Needed.
- Author
-
Tonellini G, Saez Vigo R, and Novelli G
- Abstract
Background: The rehabilitation of edentulous jaws with guided and flapless surgery applied to the All-on-4 concepts is a predictable treatment with a high implant and prosthetic survival rates, but there are several contraindications for this technique like when bone reduction is needed due to a high smile line in the maxilla or when there is an irregular or thin bone crest., Purpose: To report a technique with double guided surgery for bone reduction and implant placement with the All-on-4 concept., Materials and Methods: 7 patients were included in the study. Guided implant planning was performed using CBCT, and the virtual templates were created with three dedicated software. Custom surgical templates were made for the ostectomy and for implants positioning., Results: 28 implants were placed using a double bone-supported surgical guide. The mean angular errors between the preoperative-planned implant and the postoperative-placed implant were 2.155° ± 2.03°; the mean distance errors between the planned and the placed implants were 0.763 mm ± 0.55 mm on the shoulder implant and 0.570 mm ± 0.40 mm on the apex implant., Conclusions: The results of our study indicate that this treatment is predictable with an excellent survival rate allowing excellent results even when bone reduction is mandatory.
- Published
- 2018
- Full Text
- View/download PDF
9. Orbital Osteoblastoma: Technical Innovations in Resection and Reconstruction Using Virtual Surgery Simulation.
- Author
-
Novelli G, Gramegna M, Tonellini G, Valente G, Boni P, Bozzetti A, and Sozzi D
- Abstract
Osteoblastoma is a benign tumor of bone, representing less than 1% of bone tumors. Craniomaxillofacial localizations account for up to 15% of the total and frequently involve the posterior mandible. Endo-orbital localization is very rare, with most occurring in young patients. Very few of these tumors become malignant. Orbital localization requires radical removal of the tumor followed by careful surgical reconstruction of the orbit to avoid subsequent aesthetic or functional problems. Here, we present a clinical case of this condition and describe a surgical protocol that uses and integrates state-of-the art technologies to achieve orbital reconstruction.
- Published
- 2016
- Full Text
- View/download PDF
10. Virtual surgery simulation in orbital wall reconstruction: integration of surgical navigation and stereolithographic models.
- Author
-
Novelli G, Tonellini G, Mazzoleni F, Bozzetti A, and Sozzi D
- Subjects
- Adult, Biocompatible Materials chemistry, Diplopia surgery, Enophthalmos surgery, Exophthalmos surgery, Female, Humans, Image Processing, Computer-Assisted methods, Male, Middle Aged, Orbital Fractures surgery, Orbital Neoplasms surgery, Reproducibility of Results, Surgical Mesh, Titanium chemistry, Treatment Outcome, Young Adult, Zygoma surgery, Zygomatic Fractures surgery, Computer-Aided Design, Models, Anatomic, Orbit surgery, Patient Care Planning, Plastic Surgery Procedures methods, Surgery, Computer-Assisted methods, User-Computer Interface
- Abstract
Purpose: Correction of post traumatic orbital and zygomatic deformity is a challenge for maxillofacial surgeons. Integration of different technologies, such as software planning, surgical navigation and stereolithographic models, opens new horizons in terms of the surgeons' ability to tailor reconstruction to individual patients. The purpose of this study was to analyze surgical results, in order to verify the suitability, effectiveness and reproducibility of this new protocol., Methods: Eleven patients were included in the study. Inclusion criteria were: unilateral orbital pathology; associated diplopia and enophthalmos or exophthalmos, and zygomatic deformities. Syndromic patients were excluded. Pre-surgical planning was performed with iPlan 3.0 CMF software and we used Vector Vision II (BrainLab, Feldkirchen, Germany) for surgical navigation. We used 1:1 skull stereolithographic models for all the patients. Orbital reconstructions were performed with a titanium orbital mesh. The results refer to: correction of the deformities, exophthalmos, enophthalmos and diplopia; correspondence between reconstruction mesh positioning and preoperative planning mirroring; and the difference between the reconstructed orbital volume and the healthy orbital volume., Results: Correspondence between the post-operative reconstruction mesh position and the presurgical virtual planning has an average margin of error of less than 1.3 mm. In terms of en- and exophthalmos corrections, we have always had an adequate clinical outcome with a significant change in the projection of the eyeball. In all cases treated, there was a complete resolution of diplopia. The calculation of orbital volume highlighted that the volume of the reconstructed orbit, in most cases, was equal to the healthy orbital volume, with a positive or negative variation of less than 1 cm(3)., Conclusion: The proposed protocol incorporates all the latest technologies to plan the virtual reconstruction surgery in detail. The results obtained from our experience are very encouraging and lead us to pursue this path., (Copyright © 2014 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2014
- Full Text
- View/download PDF
11. Surgical navigation recording systems in orbitozygomatic traumatology.
- Author
-
Novelli G, Tonellini G, Mazzoleni F, Sozzi D, and Bozzetti A
- Subjects
- Bone Screws, Female, Fracture Fixation, Internal instrumentation, Humans, Male, Orbital Fractures diagnostic imaging, Orthodontic Brackets, Plastic Surgery Procedures instrumentation, Plastic Surgery Procedures methods, Tomography, X-Ray Computed, Traumatology instrumentation, Traumatology methods, Treatment Outcome, Zygomatic Fractures diagnostic imaging, Fracture Fixation, Internal methods, Orbital Fractures surgery, Surgery, Computer-Assisted methods, Zygomatic Fractures surgery
- Abstract
An essential step in the navigation procedure is the recording of markers required for the triangulation of the intraoperative navigation system. The aim of this study was to describe the procedure and preliminary results of a simple methodology for the application of dental markers to achieve good triangulation of the navigation system in maxillofacial surgery, highlighting the indications, contraindications, and possible limitations.We analyzed results from a sample of 7 patients with orbital or orbitozygomatic fractures, who were subjected to surgical intervention for the reduction and synthesis of the zygomatic fracture and from 1 case of untreated orbital fracture with enophthalmos and diplopia. We used 2 different types of dental markers: in 3 patients, we used 4 or 5 ordinary orthodontic brackets, which we placed on their upper maxillary teeth, and in 1 patient, the hexagonal-headed screws used in osteosynthesis. The accuracy of the recording was assessed during surgery by checking healthy anatomic structures against computed tomographic images. By analyzing our clinical results in light of the most recent literature, we highlighted that the application of dental markers is comparable with the best recording systems requiring a discrepancy of less than 1 mm.From the preliminary clinical analysis of the results, we confirm that the introduction of this new and simple procedure enables the successful triangulation of the navigation system, which can be used whenever the use of a navigator is required.
- Published
- 2012
- Full Text
- View/download PDF
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