Check the listing for details. Degenerative Joint Disease 4 Stage Osteoarthritis Osteoarthritic Shoulder Model. Condition: New – Open box. Listed at 235.00 USD. Everything is new open box for display pictures for ebay. Please review pictures for size. Joints are magnetic and come apart for show usage. anatomical model depicts the stages of degenerative joint disease in the shoulder joint. It is designed to help medical professionals understand and diagnose osteoarthritis, a common condition that affects many individuals. The model is made by Horizon, a trusted brand in the medical industry. The model specifically shows the four stages of osteoarthritis in the shoulder joint, from early signs of cartilage loss to severe joint damage. It is a valuable tool for healthcare professionals and medical students to learn about the condition and improve their diagnostic skills. This model is ideal for use in medical, lab, and dental settings.