A surgical cannula for providing access to a surgical site in a patients body. A cannula body of the surgical cannula has a flange attached to a proximal end. The cannula body is defined by two complementary portions, pivotally connected together proximate the flange. The cannula body has a bore extending from the flange to the surgical site. The cannula is inserted into the patients body above the surgical site, until a lower surface of the flange contacts the patients superficial fascia, which acts as a stop to prevent over-insertion. A thread provided on the cannula body holds the cannula in position in the patients body. Apertures in the flange communicate with channels within the cannula body that extend to the surgical site to provide the surgeon with additional means to provide light, irrigation, and/or suction to and from the surgical site. The two complimentary portions can be pivoted apart from one another within the patients body to provide an increased amount of access to the surgical site.