A method is provided for a minimally invasive procedure utilizing the telescoping dilation introducer to insert a bone fixation device into a patient's spine for posterior spine fusion. The dilation introducer has a locked assembled configuration for placement of the dilation introducer against a patient's bone tissue to be treated, and an unlocked, collapsed configuration for dilating the patient's soft tissue down to the bone tissue to be treated to a desired degree of dilation to permit minimally invasive surgical procedures on the patient's bone tissue to be treated. Dilator tubes are successively released and advanced to progressively expand the patient's soft tissue down to the bone tissue to be treated.
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