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Surgical Techniques Development
Volume 13
Issue 2
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Surg. Tech. Dev., Volume 13, Issue 2 (June 2024) – 4 articles

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16 pages, 6121 KiB  
Article
15-Year Experience in Maxillofacial Surgical Navigation with Tracked Instruments
by Giorgio Novelli, Filippo Santamato, Alejandro Juan Piza Moragues, Andrea Filippi, Federico Valsecchi, Gabriele Canzi and Davide Sozzi
Surg. Tech. Dev. 2024, 13(2), 162-177; https://doi.org/10.3390/std13020010 (registering DOI) - 26 Apr 2024
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Abstract
(1) Introduction and Aim: Surgical navigation has evolved as a vital tool in maxillofacial surgery, offering precise and patient-specific data. This study explores the clinical applications and accuracy of intraoperative tool tracking in maxillofacial surgery. (2) Materials and Methods: The research includes 42 [...] Read more.
(1) Introduction and Aim: Surgical navigation has evolved as a vital tool in maxillofacial surgery, offering precise and patient-specific data. This study explores the clinical applications and accuracy of intraoperative tool tracking in maxillofacial surgery. (2) Materials and Methods: The research includes 42 patients with various pathologies who underwent surgeries assisted by a surgical navigation system using tracked instruments. Four representative cases are exhibited in the study: the first case involving coronoid hyperplasia with mouth opening deficit, the second case addressing naso-orbital-ethmoidal-frontal ossifying fibroma resection, the third case showcasing a subapical osteotomy (Köle) for a class III dentoskeletal malocclusion, and the fourth one exposing the treatment of a recurrent ameloblastoma. (3) Results: The results indicate that surgical navigation with tracked instruments provides high precision (<1.5 mm error), reduced surgical time, and a less invasive approach. (4) Conclusions: This study highlights the potential for reproducible outcomes and increased safety, especially in complex cases. Despite some limitations, the synergy between surgical navigation and tracked instruments offers a promising approach in maxillofacial surgery, expanding its applications beyond current practices. Full article
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40 pages, 721 KiB  
Conference Report
Report on the 11th National Congress AICPE (Associazione Italiana di Chirurgia Plastica Estetica) Held in Rimini, Italy, 12–14 April 2024
by Egidio Riggio
Surg. Tech. Dev. 2024, 13(2), 122-161; https://doi.org/10.3390/std13020009 - 22 Apr 2024
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Abstract
The annual congress of the Italian Association of Plastic Aesthetic Surgery (AICPE) is one of the most relevant conference meetings in Europe concerning aesthetic plastic surgery as there are a number of participants and a parterre of invited speakers chosen for their renowned [...] Read more.
The annual congress of the Italian Association of Plastic Aesthetic Surgery (AICPE) is one of the most relevant conference meetings in Europe concerning aesthetic plastic surgery as there are a number of participants and a parterre of invited speakers chosen for their renowned scientific value. [...] Full article
15 pages, 7082 KiB  
Article
Anterior Cervical and Upper Thoracic Column Reconstruction Using an Expandable Poly-Ether-Ether-Ketone Vertebral Body Replacement: A Retrospective Single Center Cohort Analysis
by Martin Štefanides, Katharina A. C. Oswald, Anaïs K. Luyet, Christoph E. Albers, Lorin M. Benneker and Moritz C. Deml
Surg. Tech. Dev. 2024, 13(2), 107-121; https://doi.org/10.3390/std13020008 - 12 Apr 2024
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Abstract
This study aimed to evaluate the safety and efficacy of a novel Poly-Ether-Ether-Ketone (PEEK) expandable vertebral body replacement (VBR) for anterior cervico-thoracic vertebral column reconstruction in patients with metastatic, traumatic, or degenerative diseases. Radiographic and clinical outcomes, as well as complication rates, were [...] Read more.
This study aimed to evaluate the safety and efficacy of a novel Poly-Ether-Ether-Ketone (PEEK) expandable vertebral body replacement (VBR) for anterior cervico-thoracic vertebral column reconstruction in patients with metastatic, traumatic, or degenerative diseases. Radiographic and clinical outcomes, as well as complication rates, were analyzed in a retrospective analysis of 28 patients (61 ± 13 years; 64% female) who underwent an anterior cervical corpectomy and fusion (ACCF) with the Expandable Corpectomy Device (ECD) from DePuy/Synthes (2011–2020). Correction of the bisegmental kyphotic angle (BKA) was chosen as the primary outcome. Bony fusion, loss of device height, and implant subsidence were evaluated additionally. Clinical outcome was assessed using Odom’s criteria, the numerical pain rating scale (NRS), the American Spinal Injury Association Impairment Scale (AIS), and the Karnofsky Performance Status Scale (KPSS). Our study found a significant improvement in the BKA (12.3° ± 9.6°; p = 0.0002) at the last follow-up with no statistically relevant loss of device height (p = 0.96) or implant subsidence (p = 0.99). Successful bony fusion was observed in all patients. The KPSS significantly improved in patients with a tumorous disease at the time of discharge (p = 0.0009), and the sensation of pain showed significant improvement at six months post-operatively and at the final follow-up (p = 0.004; p = 0.021). However, four patients needed further secondary posterior stabilization, and one ECD was explanted due to a severe surgical site infection after an accidental esophageal lesion. In conclusion, the ECD proofed the radiographic stability for the anterior column reconstruction of the cervico-thoracic spine with significantly improved clinical outcome. Full article
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10 pages, 2512 KiB  
Technical Note
Novel Concept for the Expansion of the Fibula Bone as an Autologous Bone Graft: Experimental Tests on an Animal Implant Prototype—In Memoriam Volker Buehren
by Matthias Militz, Volker Buehren, Christoph Miethke, Carolin Gabler, Josephine Mauck, Wolfram Mittelmeier, Robert Bialas and Rainer Bader
Surg. Tech. Dev. 2024, 13(2), 97-106; https://doi.org/10.3390/std13020007 - 22 Mar 2024
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Abstract
The current reconstructive surgical procedures implemented after the resection of extended bone segments are associated with high complication rates and long-term treatments. By transplanting an autologous, vascularized and stabilized bone segment, these challenges can be managed. Thus, we propose a novel procedure to [...] Read more.
The current reconstructive surgical procedures implemented after the resection of extended bone segments are associated with high complication rates and long-term treatments. By transplanting an autologous, vascularized and stabilized bone segment, these challenges can be managed. Thus, we propose a novel procedure to expand the currently available autologous bone grafts to the dimensions of the recipient bone using an implantable device. The objective of the present study was to characterize the feasibility of developing an implant prototype for fibula expansion in an in vitro model using a porcine fibula. A balloon catheter, as the part of the implant responsible for expansion, was proven to expand while being periodically filled with sodium chloride. Therefore, the expansion of the balloon catheter was analyzed in an experimental test setup with a 3D-printed porcine fibula with a closure film simulating callus formation to simulate the in vivo situation. Our experimental testing proved the successful expansion of the porcine fibula by the balloon catheter. Hence, the feasibility of the concept for subsequent animal testing was confirmed. Full article
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