Two-Piece Floating Joint Replacement Device With A Rigid Backing Material

A two-part joint replacement device for replacing damaged soft joint tissue, the device comprising:

• a free floating soft joint tissue replacement component comprising:
• a first tissue-interface surface shaped to engage a first anatomical structure of a joint having a damaged soft tissue;
• a first posterior peripheral portion;
• a first anterior peripheral portion;
• and
• a first sliding interface;
• and
• a free floating rigid base component comprising:
• a second tissue-interface surface shaped to engage a second anatomical structure of the joint;
• a second posterior peripheral portion;
• a second anterior peripheral portion;
• and
• a second sliding interface configured to engage the first sliding interface,
• wherein the rigid base component is sized to permit translation of the soft joint tissue replacement component between the second posterior peripheral portion and the second anterior peripheral portion, and
• wherein the soft joint tissue replacement component further comprises:
• a first height when the soft joint tissue replacement component is disposed at the second posterior peripheral portion;
• and
• a second height when the soft joint tissue replacement component is disposed at the second anterior peripheral portion.