Repair effect of xenogeneic acellular dermal matrix during external auditory canal reconstruction after canal wall down mastoidectomy

2019 ◽  
Vol 140 (2) ◽  
pp. 110-115
Author(s):  
Jian Zang ◽  
Bo Yang ◽  
Shuai Feng ◽  
Xuejun Jiang
Keyword(s):  
External Auditory Canal ◽  
Acellular Dermal Matrix ◽  
Canal Wall ◽  
Dermal Matrix ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy ◽  
Acellular Dermal

External Auditory Canal Reconstruction and Mastoid Obliteration Using Modified Palva Flap in Canal Wall Down Mastoidectomy With Tympanoplasty

2019 ◽  
Vol 128 (6_suppl) ◽  
pp. 69S-75S
Author(s):  
Ji-Sun Kim ◽  
Il Gye Lim ◽  
Jeong-Hoon Oh ◽  
Byung Guk Kim ◽  
Ki-Hong Chang
Keyword(s):  
Temporal Bone ◽  
External Auditory Canal ◽  
Pure Tone ◽  
Pure Tone Audiometry ◽  
Canal Wall ◽  
Mastoid Obliteration ◽  
Before And After ◽  
The Status ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy

Objective: To evaluate the effectiveness of a modified Palva flap used for external auditory canal reconstruction and mastoid obliteration in canal wall down mastoidectomy. Methods: We retrospectively analyzed patients who underwent canal wall down mastoidectomy with tympanoplasty using modified Palva flap. All patients underwent pure tone audiometry and temporal bone computed tomography (CT) before surgery, and the same tests were performed in the first year after surgery. The external auditory canal volumes were calculated by summing the areas of each section selected in temporal bone CT. For each patient, the ratio of external auditory canal volume was calculated from CT taken before and after surgery. Results: The mean of external auditory canal volume after canal wall down with a modified Palva flap was about 1.4 times larger than before surgery. The modified Palva flap is effective for the reconstruction of the external auditory canal. Both pure tone audiometry level and air-bone gap showed statistically significant improvement after surgery ( Ps = .001 and .002, respectively). Conclusions: The external auditory canal volume slightly increased, but the status of mastoid obliteration was well maintained 1 year after surgery. The modified Palva flap used in this study is an easy and effective method in external auditory canal reconstruction and mastoid obliteration.

scholarly journals Mastoid obliteration and external auditory canal reconstruction with silicone block in canal wall down mastoidectomy

2021 ◽  
Author(s):  
Mohammad Faramarzi ◽  
Reza Kaboodkhani ◽  
Ali Faramarzi ◽  
Sareh Roosta ◽  
Mohammadjavad Erfanizadeh ◽  
...  
Keyword(s):  
External Auditory Canal ◽  
Canal Wall ◽  
Mastoid Obliteration ◽  
Canal Wall Down ◽  
Canal Wall Down Mastoidectomy

scholarly journals Acellular dermal matrix as filler in breast-conserving surgery: warnings for a careful use

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Gianluca Franceschini ◽  
Riccardo Masetti
Keyword(s):  
Acellular Dermal Matrix ◽  
Breast Conserving Surgery ◽  
Human Origin ◽  
Dermal Matrix ◽  
Adequate Knowledge ◽  
Aesthetic Results ◽  
Dermal Matrices ◽  
Acellular Dermal ◽  
Human Acellular Dermal Matrix ◽  
Host Tissues

AbstractAcellular dermal matrices are biological materials of porcine, bovine, or human origin used as scaffold for reconstructive purpose in plastic surgery; these materials are well-tolerated and safely integrated in host tissues without causing resorption, contracture, and encapsulation thanks to their low antigenicity.Recently, human acellular dermal matrix has been used as a filler in breast-conserving surgery to improve aesthetic results. Adequate knowledge of biomaterials properties, appropriate skill, and careful compliance with some specific recommendations are mandatory in order to optimize outcomes and obtain a work of success.

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