Reconstruction of the Maxilla with Prefabricated Scapular Flaps in Noma Patients

Vinzenz, K.; Holle, J.; Würinger, Elisabeth

doi:10.1097/prs.0b013e3181706dd6

Cited by 25 publications

(16 citation statements)

References 39 publications

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“…In extended facial noma-defects the bony framework of the reconstructed midface is loaded by the weight of several flaps and the bone-anchored bridgework during mastication and also by the shrinkage of scar tissue, as a typical feature of this disease [72] (Fig. 6a).…”

Section: Surgery Of Midfacial Defects -Reconstruction By Prefabricatementioning

confidence: 99%

“…6b. Long-term observation showed restoration of oral function and stability of the maxilla after several years [72,76,77].…”

Section: Surgery Of Midfacial Defects -Reconstruction By Prefabricatementioning

confidence: 99%

“…2c) without any further modifications at the time of transplantation [56,67,72]. We have described our computer-assisted operation planning and its implementation in every detail [56,68,[72][73][74][75][76].…”

Section: Surgery Of Midfacial Defects -Reconstruction By Prefabricatementioning

confidence: 99%

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Osteoplastic surgery of the face – state of the art and future aspects

Vinzenz

Schaudy

2011

Eur Surg

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Background: The management of facial defects has rapidly changed in the last decade. Functional and esthetic requirements have steadily increased along with the refinements of surgery.Methods: To achieve excellence, a comprehensive spectrum of osteoplastic surgical methods, in particular in combination with each other, is required to meet this challenge. Osteomyocutaneous flaps, advanced block grafting techniques, especially complex prefabricated composite grafts, and distraction osteogenesis last being the most recent surgical method both in reconstructive and orthognathic face surgery, are in use.Results: Since osseous deficiencies of any kind ranging from aging, malocclusion-related skeletal disfigurement to orofacial defects result in facial deformities and impairment of function, the goal of osteoplastic surgery is the reconstruction of the skeletal architecture to achieve an esthetic and functional musculoskeletal balance of the face. Exemplary are CLP and the complete clinical picture of facial aging.Conclusions: Against this background plastic-reconstructive face surgery, craniofacial surgery and oral implant surgery still exist in isolated clinical fields although an interdisciplinary approach on new surgical concepts would be able to shift the border of the possible considerably.Because of the complexity of the demonstrated osteoplastic proceedings, oral surgery and its used bone substituted materials will only be marginally reviewed.

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Section: Surgery Of Midfacial Defects -Reconstruction By Prefabricatementioning

confidence: 99%

“…6b. Long-term observation showed restoration of oral function and stability of the maxilla after several years [72,76,77].…”

Section: Surgery Of Midfacial Defects -Reconstruction By Prefabricatementioning

confidence: 99%

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Osteoplastic surgery of the face – state of the art and future aspects

Vinzenz

Schaudy

2011

Eur Surg

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“…Bone defects represent a consistently difficult problem for surgeons in oral and maxillofacial surgery, reconstructive orthopedic, craniofacial, and plastic surgery procedures. There are many methods to repair bone defects including autograft, allograft, and xenograft 1–5…”

Section: Introductionmentioning

confidence: 99%

In vivo evaluation of resorbable bone graft substitutes in mandibular sockets of the beagle

Shih

Chang

Yang

et al. 2012

J Biomedical Materials Res

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Hydroxyapatite (Ca(10)(PO(4))(6)(OH)(2)), with its high biocompatibility and good bioaffinity, stimulates osteoconduction and is slowly replaced by the host bone after implantation. However, clinical use of HA as a bone substitute has proved problematic. It is difficult to prevent dispersion of the HA granules and to mold the granules into the desired shape. Calcium sulfate as a bone graft substitute is rapidly resorbed in vivo releasing calcium ions, but fails to provide a long-term, three-dimensional framework to support osteoconduction. The setting properties of calcium sulfate, however, allow it to be applied in a slurry form, making it easier to handle and apply in different situations. This study examines the in vivo response of a (Hydroxyapatite, apatitic phase)/calcium sulfate dehydrate (CSD) composite using different ratios in the mandibular premolar sockets of the beagle. The HA (AP)/CSD composite materials prepared in ratios of 30/70, 50/50, and 70/30 were implanted into the mandibular premolar sockets for 5 and 10 weeks. The control socket was empty. The authors compared the radiographic properties and the changes in height and width of the mandibular premolar sockets in the beagle. The composite graft in the 30/70 ratio had the best ability to form new bones.

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“…Titanium in particular shows properties which render it a very suitable implant based on its durability and the passively formed oxide film on the metallic surface (Breithaupt-Faloppa and others, 2008). Accordingly, titanium is now used extensively as a biomaterial in the fields of orthopedic surgery (Long and Rack, 1998), plastic surgery (Vinzenz and others, 2008), dental surgery (Arcuri and others, 2007) and cardiovascular surgery (Guidoin and others, 2000). Furthermore, titanium is the building block for engineering mechanical cardiac assist devices which can be implanted into patients with end stage heart failure in order to support the heart pump blood through the circulatory system.…”

Section: Introductionmentioning

confidence: 99%

Regenerating titanium ventricular assist device surfaces after gold/palladium coating for scanning electron microscopy

Achneck

Serpe

Jamiolkowski

et al. 2009

Microscopy Res & Technique

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Titanium is one of the most commonly used materials for implantable devices in human s. Scanning electron microscopy (SEM) serves as an important tool for imaging titanium surfaces and analyzing cells and other organic matter adhering to titanium implants. However, high-vacuum SEM imaging of a non-conductive sample requires a conductive coating on the surface. A gold/ palladium coating is commonly used and to date no method has been described to ‘clean’ such gold/ palladium covered surfaces for repeated experiments without etching the titanium itself. This constitutes a major problem with titanium based implantable devices which are very expensive and thus in short supply. Our objective was to devise a protocol to regenerate titanium surfaces after SEM analysis. In a series of experiments, titanium samples from implantable cardiac assist devices were coated with fibronectin, seeded with cells and then coated with gold/palladium for SEM analysis. X-ray photoelectron spectroscopy spectra were obtained before and after five different cleaning protocols. Treatment with aqua regia (a 1:3 solution of concentrated nitric and hydrochloric acid), with or without ozonolysis, followed by sonication in soap solution and sonication in deionized water, allowed regenerating titanium surfaces to their original state. Atomic force microscopy confirmed that the established protocol did not alter the titanium microstructure. The protocol described herein is applicable to almost all titanium surfaces used in biomedical sciences and because of its short exposure time to aqua regia, will likely work for many titanium alloys as well.

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Reconstruction of the Maxilla with Prefabricated Scapular Flaps in Noma Patients

Abstract: Long-term observation of selected noma patients showed restoration of oral function and stability of the maxilla after several years.

Cited by 25 publications

References 39 publications

Osteoplastic surgery of the face – state of the art and future aspects

Osteoplastic surgery of the face – state of the art and future aspects

In vivo evaluation of resorbable bone graft substitutes in mandibular sockets of the beagle

Regenerating titanium ventricular assist device surfaces after gold/palladium coating for scanning electron microscopy

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