A coring reamer and method for creating a tibial tunnel and producing a bone graft for arthroscopic anterior cruciate ligament reconstruction. A conventional guide pin is drilled through the tibia and removed. A collared guide pin is then inserted through the guide pin tunnel until the collar abuts against...http://www.google.com/patents/US5423823?utm_source=gb-gplus-sharePatent US5423823 - Coring reamer
