A Method for Preserving the Posterior Canal Wall and Bridge in the Surgery for Cholesteatoma:Preliminary Report

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

“… 7 , 17 Another modification in the use of a posterior canal wall osteoplastic flap in which, the posterior segment of the EAC is temporarily removed and then the segment is reimplanted into its bed with or without further fixation, such as bone cement or using microplate osteosynthesis. 18 , 19 , 20 , 21 , 22 Of note, biological material has a lower chance of infection, but there are some disadvantages, including atrophy, resorption, curvature, difficulty in fashioning, and donor site morbidity. On the other hand, the advantages of synthetic materials include no atrophy or resorption, or donor site morbidity.…”

Reversible Canal Wall Down Mastoidectomy for Acquired Cholesteatomas: Preliminary Results

“…Lapidot and Brandow 11 used a small cutting burr to create perforations in the posterior canal wall. The superior osteotomy was made at the level of the superior buttress, and the inferior osteotomy was made at the bottom of the ear canal.…”

“…The technique of Richards 14 differed only slightly from that of Lapidot and Brandow 11 in that placement of his superior osteotomy started anterior to the head of the malleus; otherwise, the procedure was essentially the same.…”

“…However, the approach definitely affords exposure of the epitympanum, mastoid, and mesotympanum and is applicable for managing cholesteatomas. In addition to the original publication by Schnee, 10 other authors, including Lapidot and Brandow, 11 Gerlach, 12 Wullstein, 13 Richards, 14 Feldmann, 15 Portmann, 16 Mercke, 17 Tange, 18 and Babighian, 19 have reported techniques in which a portion or the entire posterior canal wall was temporarily removed or displaced.…”