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Outline. History AnatomyIndications TechniquesComplicationsCanal wall up vs. Canal wall down. History. Louis Petit was credit with first describing the procedure in the 1736 with a trochar, although trephination was done since prehistoric times.A chisel and gouge where used extensively throughout the 1800\'sSchwartze popularized mastoidectomy in 1870 with detailed drawings. He described the cortical mastoidectomy, which was used extensively in preantibiotic era. Bondy described a techn9455

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