#$%^&*AU2014200217B220180201.pdf#####ABSTRACT A retaining mechanism 10 is disclosed comprising a plate including a first surface adapted to engage with an implant 40 and a second opposing surface. The plate has mechanically-weakened areas 28, such that the plate is compressible from a first dimension to a second reduced dimension via the weakened areas. Further the plate includes at least one ledge adapted to engage with a recess 50, 52 in the implant 40 to prevent a fixation member 60 inserted into the implant 40 from backing out. A tool is also disclosed for compressing and inserting the retaining mechanism 10 into engagement with the implant 40. Further respective methods of compression and insertion of the retaining mechanism 10 into engagement with the implant are also disclosed. FIG la1,17 - ---- ------ ----------SOM 4 ............ ............. ... I ........................ .................... .. ... ... .. .................... .: ......................... ....................... ...................... .................. ........................ .................... ......................... .................... ........... .. ... ..................... ......................... :.- .. ...................... .................... ............................ .. ........................................ ........................ ......................................... .......................... ............... ......................... ........ ......................... ...................... ............. ....................... ......................................... :xxxxx ii%. ..................... ....... ......................... ............................ ......................... ...................... ............................ ... ......................... ................. ........ ..... . ......... ......................... .. ............ FIG. IA ------------ ---------........... ........... ........... MM
