articular cartilage isosteoarthritis articular cartilagepatellofemoral articular cartilageglenohumeral articular cartilagemeniscus articular cartilagetrochlear articular cartilagepatellar articular cartilageacetabular articular cartilageartificial cartilage replacementglenoid articular cartilagefemoral articular cartilagepurpose of articular cartilage
