scholarly journals Biomechanical Stress in Obturator Prostheses: A Systematic Review of Finite Element Studies

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Mohammed A. Mousa ◽  
Johari Yap Abdullah ◽  
Nafij B. Jamayet ◽  
Mohammad Khursheed Alam ◽  
Adam Husein
Keyword(s):  
Systematic Review ◽  
Free Flap ◽  
Flap Reconstruction ◽  
Free Flap Reconstruction ◽  
Biomechanical Stress ◽  
Maxillary Defect ◽  
Zygomatic Implants ◽  
Resection Line ◽  
English Articles ◽  
Design And Methods

Aim. This systematic review is aimed at investigating the biomechanical stress that develops in the maxillofacial prostheses (MFP) and supporting structures and methods to optimize it. Design and Methods. A literature survey was conducted for full-text English articles which used FEA to examine the stress developed in conventional and implant-assisted MFPs from January 2010 to December 2020. Results. 87 articles were screened to get an update on the desired information. 74 were excluded based on a complete screening, and finally, 13 articles were recruited for complete reviewing. Discussion. The MFP is subjected to stress, which is reflected in the form of compressive and tensile strengths. The stress is mainly concentrated the resection line and around the apices of roots of teeth next to the defect. Diversity of designs and techniques were introduced to optimize the stress distribution, such as modification of the clasp design, using materials with different mechanical properties for dentures base and retainer, use of dental (DI) and/or zygomatic implants (ZI), and free flap reconstruction before prosthetic rehabilitation. Conclusion. Using ZI in the defective side of the dentulous maxillary defect and defective and nondefective side of the edentulous maxillary defect was found more advantageous, in terms of compression and tensile stress and retention, when compared with DI and free flap reconstruction.

Free Flap Reconstruction of the Anterior Skull Base: A Systematic Review

2021 ◽  
Author(s):  
Rajan P. Dang ◽  
Abhinav R. Ettyreddy ◽  
Zain Rizvi ◽  
Michelle Doering ◽  
Angela L. Mazul ◽  
...  
Keyword(s):  
Systematic Review ◽  
Skull Base ◽  
Free Flap ◽  
High Reliability ◽  
Anterior Skull Base ◽  
Microvascular Reconstruction ◽  
Complication Rates ◽  
Flap Reconstruction ◽  
Free Flap Reconstruction ◽  
Comprehensive Search

Abstract Objectives Given the limitations in the available literature, the precise indications, techniques, and outcomes of anterior skull base free flap reconstruction remain uncertain. The objective of this study was to perform a systematic review of published literature and evaluate indications, methods, and complications for anterior skull base free flap reconstruction. Methods A systematic review of the literature was performed using a set of search criteria to identify patients who underwent free flap reconstruction of the anterior skull base. Articles were reviewed for inclusion based on relevance, with the primary outcome being surgical complications. Results After a comprehensive search, 406 articles were obtained and 16 articles were ultimately found to be relevant to this review—79 patients undergoing free flap reconstruction were identified. Overall complication rates were 17.7% (95% confidence interval [CI]: 16.6–33.1%) for major complications and 19.0% (95% CI: 17.8–35.5%) for minor complications. Conclusion Microvascular reconstruction of the anterior skull base is feasible with high reliability reported in the literature.

scholarly journals A systematic review of validated tools assessing functional and aesthetic outcomes following fibula free flap reconstruction of the mandible

Head & Neck ◽  
2018 ◽  
Author(s):  
Ivana Petrovic ◽  
Hina Panchal ◽  
Paula Demetrio De Souza Franca ◽  
Marisol Hernandez ◽  
Colleen C. McCarthy ◽  
...  
Keyword(s):  
Systematic Review ◽  
Free Flap ◽  
Flap Reconstruction ◽  
Free Flap Reconstruction ◽  
Fibula Free Flap

scholarly journals Protocol for a systematic review of venous coupler devices versus hand-sewn anastomosis for microsurgical free flap reconstruction

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Timo Rodi ◽  
Alexander Geierlehner ◽  
Afshin Mosahebi ◽  
Grigorios Tanos ◽  
Justin Conrad Rosen Wormald
Keyword(s):  
Systematic Review ◽  
Free Flap ◽  
Flap Reconstruction ◽  
Free Flap Reconstruction

scholarly journals Postoperative care in microvascular free flap reconstruction of the lower extremity: A systematic review

2020 ◽  
Vol 1-2 ◽  
pp. 21-26
Author(s):  
David D. Krijgh ◽  
Milou M.E. van Straeten ◽  
Marc A.M. Mureau ◽  
Antonius J.M. Luijsterburg ◽  
Pascal P.A. Schellekens ◽  
...  
Keyword(s):  
Systematic Review ◽  
Lower Extremity ◽  
Free Flap ◽  
Postoperative Care ◽  
Flap Reconstruction ◽  
Free Flap Reconstruction ◽  
Microvascular Free Flap

Enhanced recovery after surgery for head and neck free flap reconstruction: A systematic review and meta-analysis

Oral Oncology ◽  
2021 ◽  
Vol 113 ◽  
pp. 105117
Author(s):  
Kevin Chorath ◽  
Beatrice Go ◽  
Justin R. Shinn ◽  
Leila J. Mady ◽  
Seerat Poonia ◽  
...  
Keyword(s):  
Systematic Review ◽  
Head And Neck ◽  
Free Flap ◽  
Enhanced Recovery ◽  
Enhanced Recovery After Surgery ◽  
Meta Analysis ◽  
Flap Reconstruction ◽  
Free Flap Reconstruction

scholarly journals Naso- or Orbitocutaneous Fistulas after Free Flap Reconstruction of Orbital Exenteration Defects: Retrospective Study, Systematic Review, and Meta-Analysis

2017 ◽  
Vol 78 (04) ◽  
pp. 337-345 ◽  
Author(s):  
Kurren Gill ◽  
David Hsu ◽  
Gurston Nyquist ◽  
Howard Krein ◽  
Jurij Bilyk ◽  
...  
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Free Flap ◽  
Meta Analysis ◽  
Fistula Formation ◽  
Wound Complications ◽  
Orbital Exenteration ◽  
Flap Reconstruction ◽  
Free Flap Reconstruction ◽  
Orbital Wall

Objective Naso- or orbitocutaneous fistula (NOF) is a challenging complication of orbital exenteration, and it often requires surgical repair. We sought to identify the incidence and risk factors for NOF after orbital exenteration. Study Design Retrospective chart review, systematic review, meta-analysis. Setting Tertiary care center. Participants Patients undergoing free flap reconstruction following orbital exenteration. Records were reviewed for clinicopathologic data, operative details, and outcomes. Main Outcome Measures Univariate analysis was used to assess risk factors for incidence of postoperative NOF. PubMed and Cochrane databases were searched for published reports on NOF after orbital exenteration. Rates of fistula and odds ratios for predictive factors were compared in a meta-analysis. Results Total 7 of 77 patients (9.1%) developed NOF; fistula formation was associated with ethmoid sinus involvement (p < 0.05) and minor wound break down (p < 0.05). On meta-analysis, pooled rates of fistula formation were 5.8% for free flap patients and 12.5% for patients receiving no reconstruction. Conclusion Immediate postoperative wound complications and medial orbital wall resection increased the risk for NOF. On review and meta-analysis, reconstruction of orbital exenteration defects decreased the risk for fistula formation, but published series did not demonstrate a significant decrease in risk with free flaps compared with other methods of reconstruction.

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