Modular length adjustable tubular retractor and a tube breaker

A length adjustable retractor, comprising:

• a scored elongate body adapted for breaking away at least a portion of the scored elongate body to thereby adjust the length of the length adjustable retractor, the scored elongate body comprising a proximal end, a distal end, a curved interior surface having a defined radius of curvature, and an exterior surface, the curved interior surface facing toward a retractor axis corresponding with the radius of curvature the scored elongate body, the exterior surface facing away from the retractor axis of the scored elongate body, the scored elongate body also comprising a plurality of through slots oriented perpendicular to the radius of curvature and positioned between the proximal end and the distal end, each through slot disposed through the exterior and interior surfaces and extending along a portion of the scored elongate body, the scored elongate body also comprising a plurality of exterior grooves disposed within the exterior surface of the scored elongate body and extending along a portion of the scored elongate body, each of the plurality of exterior grooves aligned with a through slot, wherein the aligned plurality of exterior grooves and plurality of through slots are spaced apart from one another at predetermined positions each of the predetermined positions being spaced apart from the others at a predetermined distance, and wherein the scored elongate body is breakable at each of the predetermined positions.