ɪn tˈuː θˈaʊzənd nˈaɪn, hˈɑːɹt hæd spˈaɪnəl fjˈuːʒən sˈɜːdʒɚɹi, wˌɪtʃ pɹɪvˈɛntᵻd hˌɪm fɹʌm plˈeɪɪŋ ɔnðə pˌiːdʒˌiːˈeɪ tˈʊɹ ɪn tˈuː θˈaʊzənd tˈɛn ænd tˈuː θˈaʊzənd ɪlˈɛvən.
In 2009, Hart had spinal fusion surgery, which prevented him from playing on the PGA Tour in 2010 and 2011.