A variable angle drill guide and method for its use for securing an end of a ligament graft in a tunnel section of a straight tunnel section that has been formed into a patient's knee in a procedure for replacing a cruciate ligament. The drill guide includes a straight reference rod that is for fitting...http://www.google.com.au/patents/US5688284?utm_source=gb-gplus-sharePatent US5688284 - Variable angle drill guide and ligament fixation method
