A balloon dissector assembly (120) includes a balloon dissector (140) having an elongate shaft (144), a handle (142) disposed on a proximal portion (144a) of the elongate shaft, and a dissection balloon (146) supported on a distal portion (144b) of the elongate shaft. The dissection balloon includes a substantially cylindrical shape having a deflated condition in which the dissection balloon includes a first diameter between the proximal and distal ends, an inflated condition in which the dissection balloon includes a second diameter between the proximal and distal ends, and a plurality of intermediate conditions in which the balloon transitions from the deflated condition to the inflated condition progressively from the proximal end to the distal end.
