Abstract
Computer assisted navigation is known to improve tunnel placement in ACL reconstruction even compared to use of direct arthroscopic view due to image distorsion by the wide angle optics in the arthroscope. However the earlier software and instrumentation has been relatively cumbersome. The use of new materials and further software elaboration has allowed to increase the navigational precision and to accommodate more different ACL repair techniques. The relevant developments of such an upgrade which in addition allows stability testing before and after the repair are presented.
Correspondence should be addressed to Mr K. Deep, General Secretary CAOS UK, 82 Windmill Road, Gillingham, Kent ME7 5NX UK. E Mail: caosuk@gmail.com
