Unknown General 7a0a3d59 This disease is A Osteochondrosis of the lunate B Osteochondrosis of the navicularq C Tuberculosis of the scaphoid D Syphilitic dactylitis High-Yield Explanation Osteochondrosis of the tarsal navicular (Kohler's disease) is characterised by aseptic necrosis of the Navicular bone causing a painful limp in a child usually 4-10 years of age.