Reciprocating rasp surgical instrument

摘要

A reciprocating rasp surgical instrument for preparing a glenoid for implantation of a glenoid prosthesis has a shaft having a first end configured to be secured in a chuck of a reciprocating tool. A cutting head is secured to a second end of the shaft. The cutting head has a cutting surface having a plurality of cutting teeth arranged in a geometry that corresponds to the geometry of the glenoid prosthesis. A concave guide surface on the cutting head is devoid of cutting teeth and is configured to receive a guide pin inserted in the glenoid of the patient.