SHAMBAUGH and Juers1 in 1946 were the first to evaluate properly the role of bone dust in bony closure of the fenestra. They therefore modified the Lempert operation with new technics designed to prevent osteogenetic closure of the fenestra and the subsequent poor result. These modifications were based on experimental and histologic studies in monkeys, which demonstrated that whenever bone dust or bone particles found their way into the perilymph space osteogenetic closure of the fenestra resulted. To keep the fenestra free of bone dust, they developed the technic of continuous irrigation and soon were able to report a marked decrease in the incidence of bony fenestral closure. This use of continuous irrigation has gained wide acceptance.
About two years after Shambaugh and Juers made their improvement on the fenestration operation, Lempert2 also noted that bone dust and bone splinters created by the action of the electrically driven burr
ROSEN S. FENESTRATION BY COLD FRACTURE METHOD: Preliminary Report of an Improved Technic. Arch Otolaryngol. 1950;52(4):618–621. doi:10.1001/archotol.1950.00700030642009
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