a trajectory guide including a guide body extending in an axial direction along a guide axis between a proximal end and a distal end and including a plurality of arm members slidably coupled to and distributed about a periphery of the guide body, the plurality of arm members including a set of arm members dimensioned to abut bone, each of the arm members including a respective first portion coupled to the guide body and a respective second portion extending laterally from the first portion, the guide body having a passageway extending along a longitudinal axis, the passageway extending a distance between the proximal end and the distal end of the guide body, the passageway dimensioned to at least partially receive a guide pin to set a trajectory of the guide pin relative to bone, and each of the arm members slidably moveable in the axial direction relative to the guide axis of the guide body; and

a defect indicator coupled to one of the arm members such that the defect indicator is moveable in the axial direction together with the respective arm member relative to the guide body, the defect indicator including a main body and a patient-specific indication member including a pointer body extending from the main body, the indication member dimensioned to indicate a direction relative to the longitudinal axis that corresponds to a predetermined position of a bone defect of a patient.