The present disclosure is directed to a kit including a balloon dissector assembly to facilitate forming an anatomical space within the body of a patient during a surgical procedure. The dissector assembly includes an elongate shaft and a plurality of detachable balloons that are releasably connectable to the distal end of the elongate shaft. The balloons are of various shapes and sizes to permit a health care practitioner such as a surgeon to select a balloon having a configuration best suited for the surgical procedure being performed. The kit also includes spacers that may be releasably attached to an elongate shaft of the balloon dissector by a surgeon for limiting the depth of insertion of the elongate shaft of the dissector assembly into a body of a patient.