scholarly journals Reconstruction of the trachea and carina: Surgical reconstruction, autologous tissue transplantation, allograft transplantation, and bioengineering

2022 ◽  
Author(s):  
Jianghao Ren ◽  
Yuanyuan Xu ◽  
Guo Zhiyi ◽  
Ting Ren ◽  
Jiangbin Ren ◽  
...  
Keyword(s):  
Tissue Transplantation ◽  
Surgical Reconstruction ◽  
Autologous Tissue ◽  
Allograft Transplantation

scholarly journals Ear Reconstruction Simulation: From Handcrafting to 3D Printing

2019 ◽  
Vol 6 (1) ◽  
pp. 14 ◽  
Author(s):  
Elisa Mussi ◽  
Rocco Furferi ◽  
Yary Volpe ◽  
Flavio Facchini ◽  
Kathleen S. McGreevy ◽  
...  
Keyword(s):  
Costal Cartilage ◽  
Surgical Reconstruction ◽  
Ear Reconstruction ◽  
Autologous Tissue ◽  
Aesthetic Appearance ◽  
History Of ◽  
Common Clinical Practice ◽  
The Aesthetic ◽  
Manufacturing Technologies ◽  
High Level

Microtia is a congenital malformation affecting one in 5000 individuals and is characterized by physical deformity or absence of the outer ear. Nowadays, surgical reconstruction with autologous tissue is the most common clinical practice. The procedure requires a high level of manual and artistic techniques of a surgeon in carving and sculpting of harvested costal cartilage of the patient to recreate an auricular framework to insert within a skin pocket obtained at the malformed ear region. The aesthetic outcomes of the surgery are highly dependent on the experience of the surgeon performing the surgery. For this reason, surgeons need simulators to acquire adequate technical skills out of the surgery room without compromising the aesthetic appearance of the patient. The current paper aims to describe and analyze the different materials and methods adopted during the history of autologous ear reconstruction (AER) simulation to train surgeons by practice on geometrically and mechanically accurate physical replicas. Recent advances in 3D modelling software and manufacturing technologies to increase the effectiveness of AER simulators are particularly described to provide more recent outcomes.

scholarly journals Nerve Allotransplantation as it Pertains to Composite Tissue Transplantation

Hand ◽  
2009 ◽  
Vol 4 (3) ◽  
pp. 239-244 ◽  
Author(s):  
Amy M. Moore ◽  
Wilson Z. Ray ◽  
Kristofer E. Chenard ◽  
Thomas Tung ◽  
Susan E. Mackinnon
Keyword(s):  
Nerve Regeneration ◽  
Solid Organ Transplantation ◽  
Tissue Transplantation ◽  
Large Animal ◽  
Solid Organ ◽  
Composite Tissue ◽  
Allograft Transplantation ◽  
Segmental Nerve ◽  
Composite Tissue Transplantation ◽  
And Function

Nerve allografts provide a temporary scaffold for host nerve regeneration and allow for the repair of significant segmental nerve injuries. From rodent, large animal, and nonhuman primate studies, as well as clinical experience, nerve allografts, with the use of immunosuppression, have the capacity to provide equal regeneration and function to that of an autograft. In contrast to solid organ transplantation and composite tissue transfers, nerve allograft transplantation requires only temporary immunosuppression. Furthermore, nerve allograft rejection is difficult to assess, as the nerves are surgically buried and are without an immediate functional endpoint to monitor. In this article, we review what we know about peripheral nerve allograft transplantation from three decades of experience and apply our current understanding of nerve regeneration to the emerging field of composite tissue transplantation.

scholarly journals Intra oral reconstruction with buccal fat pad: Recent applications of autologous tissue transplantation as a local flap

JPRAS Open ◽  
2016 ◽  
Vol 10 ◽  
pp. 33-39 ◽  
Author(s):  
Khaleque Hasibul ◽  
Fumi Nakai ◽  
Yasuhiro Nakai ◽  
Ayako Jinzenji ◽  
Akinori Iwasaki ◽  
...  
Keyword(s):  
Tissue Transplantation ◽  
Local Flap ◽  
Fat Pad ◽  
Buccal Fat Pad ◽  
Autologous Tissue ◽  
Oral Reconstruction

scholarly journals Surgical Reconstruction with Autologous Tissue in a Case of Isolated Unilateral Absence of the Right Pulmonary Artery

2009 ◽  
Vol 38 (2) ◽  
pp. 156-159 ◽  
Author(s):  
Yoshimasa Uno ◽  
Kiyozo Morita ◽  
Masahito Yamashiro ◽  
Gen Shinohara ◽  
Hiroshi Kagawa ◽  
...  
Keyword(s):  
Pulmonary Artery ◽  
Surgical Reconstruction ◽  
Autologous Tissue ◽  
Right Pulmonary Artery ◽  
The Right

Effects of compression during formation on the microstructure of composite hydroxylapatite/plaster implants for bone reconstruction

1988 ◽  
Vol 46 ◽  
pp. 750-751
Author(s):  
J. Hanker ◽  
K. Cowden ◽  
R. Noecker ◽  
P. Yates ◽  
N. Georgiade ◽  
...  
Keyword(s):  
Cosmetic Surgery ◽  
Glass Plate ◽  
Surgical Reconstruction ◽  
Equal Weight ◽  
Sintered Ceramic ◽  
Setting Times ◽  
Excess Water ◽  
Mixture Prior ◽  
Mechanical Strengths ◽  
Calcium Sulfate Hemihydrate

Composites of plaster of Paris (PP) and hydroxylapatite (HA) particles are being applied for the surgical reconstruction of craniofacial bone defects and for cosmetic surgery. Two types of HA particles are being employed, the dense sintered ceramic (DHA) and the porous, coralline hydroxylapatite (PHA) particles. Excess water is expressed out of the moistened HA/PP mixture prior to implantation and setting by pressing it in a non-tapered syringe against a glass plate. This results in implants with faster setting times and greater mechanical strengths. It was therefore of interest to compare samples of the compressed versus noncompressed mixtures to see whether or not any changes in their microstructure after setting could be related to these different properties.USG Medical Grade Calcium Sulfate Hemihydrate (which has the lowest mortar consistency of any known plaster) was mixed with an equal weight of Interpore 200 particles (a commercial form of PHA). After moistening with a minimum amount of water, disc-shaped noncompressed samples were made by filling small holes (0.339 in. diameter x 0.053 in. deep) in polypropylene molds with a microspatula.

589: Tissue Engineered Tubularized Urethra for Surgical Reconstruction: A Pre-Clinical Study

2007 ◽  
Vol 177 (4S) ◽  
pp. 197-197 ◽  
Author(s):  
Hazem O. Orabi ◽  
Tamer A. Aboushwareb ◽  
Yuan Yuan Zhang ◽  
James J. Yoo ◽  
Anthony Atala
Keyword(s):  
Clinical Study ◽  
Surgical Reconstruction

Surgical reconstruction for unilateral iliac artery lesions in patients younger than 50 years

VASA ◽  
2011 ◽  
Vol 40 (6) ◽  
pp. 474-481 ◽  
Author(s):  
Radak ◽  
Babic ◽  
Ilijevski ◽  
Jocic ◽  
Aleksic ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Limb Salvage ◽  
Iliac Artery ◽  
Graft Patency ◽  
Long Term Results ◽  
Surgical Reconstruction ◽  
Safe Procedure ◽  
Term Survival

Background: To evaluate safety, short and long-term graft patency, clinical success rates, and factors associated with patency, limb salvage and mortality after surgical reconstruction in patients younger than 50 years of age who had undergone unilateral iliac artery bypass surgery. Patients and methods: From January 2000 to January 2010, 65 consecutive reconstructive vascular operations were performed in 22 women and 43 men of age < 50 years with unilateral iliac atherosclerotic lesions and claudication or chronic limb ischemia. All patients were followed at 1, 3, 6, and 12 months after surgery and every 6 months thereafter. Results: There was in-hospital vascular graft thrombosis in four (6.1 %) patients. No in-hospital deaths occurred. Median follow-up was 49.6 ± 33 months. Primary patency rates at 1-, 3-, 5-, and 10-year were 92.2 %, 85.6 %, 73.6 %, and 56.5 %, respectively. Seven patients passed away during follow-up of which four patients due to coronary artery disease, two patients due to cerebrovascular disease and one patient due to malignancy. Limb salvage rate after 1-, 3-, 5-, and 10-year follow-up was 100 %, 100 %, 96.3 %, and 91.2 %, respectively. Cox regression analysis including age, sex, risk factors for vascular disease, indication for treatment, preoperative ABI, lesion length, graft diameter and type of pre-procedural lesion (stenosis/occlusion), showed that only age (beta - 0.281, expected beta 0.755, p = 0.007) and presence of diabetes mellitus during index surgery (beta - 1.292, expected beta 0.275, p = 0.026) were found to be significant predictors of diminishing graft patency during the follow-up. Presence of diabetes mellitus during index surgery (beta - 1.246, expected beta 0.291, p = 0.034) was the only variable predicting mortality. Conclusions: Surgical treatment for unilateral iliac lesions in patients with premature atherosclerosis is a safe procedure with a low operative risk and acceptable long-term results. Diabetes mellitus and age at index surgery are predictive for low graft patency. Presence of diabetes is associated with decreased long-term survival.

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