Instrumentation for retracting tissue comprising a retractor member including a sidewall defining an axial passage extending along a length thereof and a lateral opening in transverse communication with the passage. A pin member is disposed within the passage and includes a distal end portion positionable adjacent the distal end of the retractor member, with at least a portion of the pin member positioned adjacent and visible through the lateral opening. In another embodiment, the retractor member includes a sidewall having a main sidewall portion defining a first wall thickness, and an enlarged sidewall portion extending axially along a length of the sidewall and defining a second wall thickness greater than the first wall thickness, with the sidewall defining an axial passage extending through the enlarged sidewall portion. A pin member is disposed within the passage and includes a distal end portion positionable adjacent the distal end of the retractor member.