Instrument and implants are disclosed which provide for insertion of an implant into an intervertebral disc space from multiple approaches to the spine. Specifically, as a preferred aspect of the invention the implant includes a tapered portion and the implant may be inserted from multiple approaches...http://www.google.co.uk/patents/US20050119753?utm_source=gb-gplus-sharePatent US20050119753 - Anterior impacted bone graft and driver instruments
