Modular tapered reamer for bone preparation and associated method

摘要

A kit (400) for use in performing joint arthroplasty is provided. The kit (400) includes a trial (12) and a reamer (2). The reamer (2) is for preparing a cavity (4) in the intramedullary canal (8) of a long bone (8) with the use of a driver (10) and to assist in performing a trial reduction. The reamer (2) includes a first portion (14) for placement at least partially in the cavity (4) of the long bone (8) and a second portion (16) operably connected to the first portion (14). The reamer (2) is removably connected to the driver (10) to rotate the reamer (2). The trial (12) is removably attachable to the reamer (2).

主权项

1. A kit for use with a driver in performing joint arthroplasty, said kit comprising:
a first trial; a second trial having at least one dimension different than said first trial; and a reamer for preparing a cavity in the intramedullary canal of a long bone to assist in performing a trial reduction, the reamer including a first portion for placement at least partially in the cavity of the long bone and a second portion operably connected to the first portion, said second portion being removably connectable to the driver, said first and second trials being removably attachable to said second portion of said reamer, wherein the first portion of the reamer includes flutes having cutting edges adapted to cut into the long bone, the first portion further including reliefs to provide a path for the removal of cut bone; wherein said reamer includes a part thereof having a tapered external periphery; wherein the driver includes a part thereof having a tapered internal periphery; and wherein said first and second trials include a portion thereof having a tapered internal periphery thereof; wherein the reamer includes a locking feature having a J-channel and the driver includes pins adapted to engage the J-channel and lock the driver to the reamer.