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Ismail T, Haumer A, Lunger A, Osinga R, Kaempfen A, Saxer F, Wixmerten A, Miot S, Thieringer F, Beinemann J, Kunz C, Jaquiéry C, Weikert T, Kaul F, Scherberich A, Schaefer DJ, Martin I. Case Report: Reconstruction of a Large Maxillary Defect With an Engineered, Vascularized, Prefabricated Bone Graft. Front Oncol 2021; 11:775136. [PMID: 34938659 PMCID: PMC8685218 DOI: 10.3389/fonc.2021.775136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 11/15/2021] [Indexed: 11/14/2022] Open
Abstract
The reconstruction of complex midface defects is a challenging clinical scenario considering the high anatomical, functional, and aesthetic requirements. In this study, we proposed a surgical treatment to achieve improved oral rehabilitation and anatomical and functional reconstruction of a complex defect of the maxilla with a vascularized, engineered composite graft. The patient was a 39-year-old female, postoperative after left hemimaxillectomy for ameloblastic carcinoma in 2010 and tumor-free at the 5-year oncological follow-up. The left hemimaxillary defect was restored in a two-step approach. First, a composite graft was ectopically engineered using autologous stromal vascular fraction (SVF) cells seeded on an allogenic devitalized bone matrix. The resulting construct was further loaded with bone morphogenic protein-2 (BMP-2), wrapped within the latissimus dorsi muscle, and pedicled with an arteriovenous (AV) bundle. Subsequently, the prefabricated graft was orthotopically transferred into the defect site and revascularized through microvascular surgical techniques. The prefabricated graft contained vascularized bone tissue embedded within muscular tissue. Despite unexpected resorption, its orthotopic transfer enabled restoration of the orbital floor, separation of the oral and nasal cavities, and midface symmetry and allowed the patient to return to normal diet as well as to restore normal speech and swallowing function. These results remained stable for the entire follow-up period of 2 years. This clinical case demonstrates the safety and the feasibility of composite graft engineering for the treatment of complex maxillary defects. As compared to the current gold standard of autologous tissue transfer, this patient’s benefits included decreased donor site morbidity and improved oral rehabilitation. Bone resorption of the construct at the ectopic prefabrication site still needs to be further addressed to preserve the designed graft size and shape.
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Affiliation(s)
- Tarek Ismail
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Alexander Haumer
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Alexander Lunger
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland
| | - Rik Osinga
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland.,Center for Musculoskeletal Infections, University Hospital Basel, Basel, Switzerland
| | - Alexandre Kaempfen
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Franziska Saxer
- Department of Orthopedic Surgery, University Hospital Basel, Basel, Switzerland
| | - Anke Wixmerten
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Sylvie Miot
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Florian Thieringer
- Clinic for Craniomaxillofacial and Oral Surgery, University Hospital Basel, Basel, Switzerland
| | - Joerg Beinemann
- Clinic for Craniomaxillofacial and Oral Surgery, University Hospital Basel, Basel, Switzerland
| | - Christoph Kunz
- Clinic for Craniomaxillofacial and Oral Surgery, University Hospital Basel, Basel, Switzerland
| | - Claude Jaquiéry
- Clinic for Craniomaxillofacial and Oral Surgery, University Hospital Basel, Basel, Switzerland
| | - Thomas Weikert
- Department of Radiology, University Hospital Basel, Basel, Switzerland
| | - Felix Kaul
- Department of Radiology, University Hospital Basel, Basel, Switzerland
| | - Arnaud Scherberich
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Dirk J Schaefer
- Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, University Hospital Basel, Basel, Switzerland.,Center for Musculoskeletal Infections, University Hospital Basel, Basel, Switzerland
| | - Ivan Martin
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
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Wu QL, Chen XG, Huo CD, Wang XC, Quan ZJ. Electrochemically driven P–H oxidation and functionalization: synthesis of carbamoylphosphonates from phosphoramides and alcohols. NEW J CHEM 2019. [DOI: 10.1039/c8nj05739g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical synthesis of carbamoylphosphonates via P–H phosphorylation and oxygenation of phosphinecarboxamides with alcohols by using n-Bu4NI (10 mol%) as an iodine source.
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Affiliation(s)
- Qiu-Li Wu
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials and College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- People's Republic of China
| | - Xing-Guo Chen
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials and College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- People's Republic of China
| | - Cong-De Huo
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials and College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- People's Republic of China
| | - Xi-Cun Wang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials and College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- People's Republic of China
| | - Zheng-Jun Quan
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials and College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- People's Republic of China
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Reich R, Hoffman A, Veerendhar A, Maresca A, Innocenti A, Supuran CT, Breuer E. Carbamoylphosphonates Control Tumor Cell Proliferation and Dissemination by Simultaneously Inhibiting Carbonic Anhydrase IX and Matrix Metalloproteinase-2. Toward Nontoxic Chemotherapy Targeting Tumor Microenvironment. J Med Chem 2012; 55:7875-82. [DOI: 10.1021/jm300981b] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Reuven Reich
- Institute for Drug Research, The Hebrew University of Jerusalem, School of Pharmacy,
P.O. Box 12065, Jerusalem IL 91120, Israel
| | - Amnon Hoffman
- Institute for Drug Research, The Hebrew University of Jerusalem, School of Pharmacy,
P.O. Box 12065, Jerusalem IL 91120, Israel
| | - Ainelly Veerendhar
- Institute for Drug Research, The Hebrew University of Jerusalem, School of Pharmacy,
P.O. Box 12065, Jerusalem IL 91120, Israel
| | - Alfonso Maresca
- Universita degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica
Bioinorganica, Rm. 188, Via della Lastruccia 3, I-50019 Sesto Fiorentino
(Florence), Italy
| | - Alessio Innocenti
- Universita degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica
Bioinorganica, Rm. 188, Via della Lastruccia 3, I-50019 Sesto Fiorentino
(Florence), Italy
| | - Claudiu T. Supuran
- Universita degli Studi di Firenze, Polo Scientifico, Laboratorio di Chimica
Bioinorganica, Rm. 188, Via della Lastruccia 3, I-50019 Sesto Fiorentino
(Florence), Italy
| | - Eli Breuer
- Institute for Drug Research, The Hebrew University of Jerusalem, School of Pharmacy,
P.O. Box 12065, Jerusalem IL 91120, Israel
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