Patient-mounted surgical support

A surgical method, comprising:

• positioning opposed projections of a shank extension instrument to at least partially surround a shank of an implantable anchor at a position distal of a proximal head of the anchor such that a longitudinal axis of the elongate body is laterally offset from a longitudinal axis of the anchor;
• coupling the instrument to the implantable anchor by rotating a locking screw disposed within a lumen of the elongate body, the rotation of the locking screw longitudinally translating a lock body disposed adjacent to a lateral side of the elongate body, the translating of the lock body moving the lock body from an uncoupled position where the anchor is not coupled to the instrument to a coupled position where the anchor is coupled to the instrument
• coupling a retractor assembly including a plurality of tissue manipulating implements to a proximal portion of the shank extension instrument;
• and retracting soft tissue by moving the plurality of tissue manipulating implements of the retractor assembly.