“…This rate increases with age to 55% in those over 62, to 59-78% in those with current or previous heel pain, and up to 81% in those with osteoarthritis (Table 1; Tanz, 1963;Bassiouni, 1965;Gerster et al 1977;Prichasuk & Subhadrabandhu, 1994;Barrett et al 1995;Riepert et al 1995;Wainwright et al 1995;Li & Muehleman, 2007;Menz et al 2008). In the past, gonorrhea, syphilis, hereditary factors, metabolic disturbances and gout were all proposed to be related to the development of PCS; these have subsequently been discredited (Winthrop, 1909;Griffith, 1910;Roland, 1912;Waechter & Sonnenschein, 1915;Paul & Henry, 1916;Von Lackum & Palomeque, 1930;Chang & Miltner, 1934;Steindler & Smith, 1938;Gould, 1942). A number of robust associations do exist, however; these are potential risk factors for spur development and will be dealt with in this review along with how they may relate to PCS etiology.…”