Subchondral implant system
A subchondral implant is disclosed, which is designed as a bone void filler for damaged bone tissue. The subchondral implant comprises a body component configured in a cylindrical shape with a hollow interior cavity and an exterior curved sidewall. The curved sidewall includes a plurality of helical ribs in a spaced apart manner for optimal fixation. The top surface comprises a plurality of through-holes for sutures, when securing tissue graft. An adjacent subchondral implant can be utilized with the subchondral implant and is nested against it for use. The nested implants allow users to repair large, elongated areas that may not be repaired by a single subchondral implant.
1 . A surgical method for filling a bone void for damaged bone tissue, the surgical method comprising the following steps:
placing a positioning jig on a desired location to be repaired;
inserting a k-wire through the positioning jig and into bone tissue in an intended location of a subchondral implant and an adjacent subchondral implant to be inserted;
utilizing a cannulated counter-boring reamer to create two overlapping blind holes;
utilizing a cannulated coring reamer to create two center cores of bone, used to fixate the subchondral implant and the adjacent subchondral implant;
installing the subchondral implant using an insertion tamp and a mallet;
installing the adjacent subchondral implant using the insertion tamp and the mallet; and
removing the k-wire and closing the patient.