No statistical difference was found between the results for ORIF compared with ORIF + PSTA : the mean SF-36 physical component scores were , respectively , 30.2 ( SD = 11.4 ) and 37.8 ( SD = 10.4 ) ( P = 0.10 ) ; the mean Musculoskeletal Functional Assessment Survey scores were 44.2 ( SD = 25.6 ) and 37.9 ( SD = 21.5 ) ( P = 0.50 ) ; the mean Ankle-Hindfoot Scale scores were 62.5 ( SD = 19.6 ) and 65.8 ( SD = 19.2 ) , ( P = 0.68 ) ; and the mean Visual Analogue Scale scores were 36.8 ( SD = 34.7 ) and 36.0 ( SD = 30.7 ) ( P = 0.82 ) .