Patent ID: 8292968

Claim:
A construct for repairing an articular cartilage defect, comprising: a cap member having an upper section and a stem depending in a generally axial direction from a central region of said upper section, said upper section including a peripheral region located laterally outwardly from said central region, and said stem having a cavity extending into said stem from a free end of said stem toward said central region of said upper section; and a base member having a first end and a second end, said first end including an annular recess extending into said base member in a generally axial direction toward said second end, said annular recess being dimensioned such that said stem of said cap member is receivable in said annular recess, said annular recess having a bottom surface intermediate said first end and said second end of said base member, first supporting means, positioned laterally outwardly from said annular recess, for supporting said peripheral region of said upper section, wherein said first supporting means includes an annular edge of said base member, said annular edge being located at said first end of said base member such that said annular edge abuts said peripheral region of said upper section when said stem of said cap member is received in said annular recess of said base member, and second supporting means, positioned laterally inwardly from said annular recess, for supporting said central region of said upper section, said second supporting means being receivable in said cavity of said stem, wherein said second supporting means includes an island which is surrounded by said annular recess of said base member such that said island abuts said central region of said upper section when said stem of said cap member is received in said annular recess of said base member.