Spinal retractor and method of use therefor

A retractor system comprising:

• first and second fixation pins;
• and
• a retractor assembly including first and second retractor bodies, the first retractor body including a first main panel and first and second extension panels extending from the first main panel, the second retractor body including a second main panel and third and fourth extension panels extending from the second main panel, the first and second main panels including a sleeve defining a bore dimensioned to receive one of the first and second fixation pins, and the first and third extension panels including a plurality of bores,
• wherein the first and second retractor bodies are transitionable between a first configuration in which each of the first and second retractor bodies is substantially flat, and a second configuration in which the first and second extension panels are transverse to the first main panel and the third and fourth extension panels are transverse to the second main panel such that the extension panels of each retractor body oppose each other,
• wherein the first and second extension panels are configured to selectively overlap the respective third and fourth extension panels in predetermined increments when the first and second retractor bodies are in the second configuration, whereby the first and second main panels are transitionable between a first position where a first bore of the plurality of bores in the first extension panel is aligned with a first bore of the plurality of bores in the third extension panel, and a second position where a second bore of the plurality of bores in the first extension panel is aligned with a second bore of the plurality of bores in the third extension panel, the first and second main panels being closer to each other in the first position than in the second position, and the respective bores of the overlapping first and third extension panels being configured to receive a peg to lock the first and third extension panels together.