Patent ID: 8435551

Claim:
A construct for repairing an osteochondral defect, comprising: a ring-shaped member having a top surface, a bottom surface, an outer diameter and an inner diameter, said inner diameter being defined by an aperture extending from said top surface to said bottom surface; and a base member derived from bone and having a longitudinal axis, which defines an axial direction, said base member having a first section arranged along said longitudinal axis proximate a first end of said base member, said first section being substantially mineralized and having a first diameter, a stem section arranged along said longitudinal axis, said stem section having one end attached to said first section and a second diameter that is less than said first diameter, and a second section arranged along said longitudinal axis proximate a second end of said base member opposite said first end thereof, said second section having a top surface, a bottom surface, and a thickness that substantially matches the thickness of a patient's surrounding native articular cartilage layer, said second section being attached to another end of said stem section opposite said one end thereof, and said second section being substantially demineralized to thereby provide said second section with an elastic quality that renders said second section deformable from a first condition, in which said second section has a third diameter that is greater than said inner diameter of said ring-shaped member, to a second condition, in which said second section is insertable through said aperture of said ring-shaped member, whereby said ring-shaped member is mountable around said stem section between said first and second sections such that said bottom surface of said second section engages said top surface of said ring-shaped member.