Glenoid repair system and methods of use thereof

A system for repairing a defect on at least a portion of an articular surface of a glenoid, said system comprising:

• at least two guide pins, said at least two guide pins comprising a first guide pin and a second guide pin, said first guide pin and said second guide pin configured to be secured to said glenoid;
• an excision apparatus comprising a first guide body and an excision device;
• said first guide body comprising a plurality of guide pin sleeves to contain said at least two guide pins, said plurality of guide pin sleeves comprising at least a first guide pin sleeve to contain said first guide pin and a second guide pin sleeve to contain said second guide pin;
• wherein, when said first guide pin is contained in said first guide pin sleeve and said second guide pin is contained in said second guide pin sleeve of said first guide body, said excision device is positionable on said first guide body at a first of a plurality of excision positions to form a first of a plurality of excision sites and;
• said guide body further comprises a third guide pin sleeve;
• and
• wherein, when said first guide pin is contained in said first guide pin sleeve and said second guide pin is contained in said third guide pin sleeve, said guide body is retained in a second excision position for said excision device;
• said guide body is rotatable on at least one of said first guide pin and said second guide pin from said first excision position to said second excision position.