| http://www.w3.org/ns/prov#value | - The lateral positioning of implant I along the guide members is controlled by engagement of implant I with engaging members 76, 77 of spreader 60 or with the guide surfaces of the guide members so that implant I does not slip out from between guide members where it might contact or damage tissue, nerves, vasculature or other tissue structures adjacent the bony portions on the approach to the space
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