Patent ID: 8470037

Claim:
A system for reconstructing a ligament by fixing at least one graft ligament strand in a tunnel, comprising: a retainer for disposition in the bone tunnel, wherein the retainer comprises at least one longitudinally-extending groove formed in the outside surface of the retainer, wherein the groove is configured to seat a graft ligament strand therein, and further wherein the at least one longitudinally-extending groove has a floor which is ramped radially outwardly as the floor extends distally-to-proximally, such that non-rotational advancement of the retainer into the bone tunnel will apply a compressive force to hold the graft ligament strand against the sidewall of the bone tunnel, and wherein the retainer comprises a transverse bore extending therethrough; a locking pin sized to pass through the transverse bore and into the sidewall of the bone tunnel so as to fix the retainer in place within the bone tunnel, the locking pin including a plurality of projections; and a cap including at least one locking member configured to engage the retainer to facilitate gripping of the at least one graft ligament strand between the cap and the retainer, wherein the cap defines a plurality of radial grooves configured to engage the plurality of projections formed on the locking pin to prevent backout of the locking pin.