Before 6 Months p-value Spasticity (Ashworth)       Triceps surae 1,1 ± 1,1 [1] 0,5± 0,8 [0] p = 0,008* Tibialis posterior 0,4 ± 0,8 [0] 0,4 ± 0,8 [0] p = 0,564 Quadriceps 1,7 ± 1,0 [0] 1,8 ± 0,9 [0] p = 0,157 Hamstrings 1,0 ± 0,9 [1] 1,2 ± 0,9 [2] p = 0,206 Muscle strength (MRC)       Triceps surae 1,6± 1,2 [2] 1,2 ± 1,2 [1] p = 0,031 Tibialis anterior 3,6± 1,0 [4] 3,2 ± 1,2 [4] p = 0,021 Quadriceps 4,0± 0,4 [4] 4,0 ± 0,4 [4] p = 0,157 Hamstrings 2,2 ± 1,0 [2] 2,2 ± 1,0 [2] p = 1,000 Passive ankle dorsiflexion (°)       Extended knee -2,0± 10,1 [0] 11,3 ± 6,1 [10] p < 0,001* Flexed knee 9,3 ± 8,3 [10] 15,0± 5,6 [15] p = 0,026 Active ankle dorsiflexion (°)       Flexed knee (analytic) -18,4 ± 18,6[-20] -4,0± 15,6 [0] p = 0,004* Flexed knee (syncinetic) -2,9± 13,7 [0] 1,3 ± 15,6 [5] p = 0,093 *Significant difference between before and after surgery

Table 2: Spasticity (Ashworth Scale), Muscle strength (Medical research Council Scale), Passive and Active Range of Motion (Median), Kinematic Parameters (Video Analysis) in the Swing and Stance Phases (Median) and Gait parameters (10-Meter Walking Test) (Means ± SD) before and 6 months after SPLATT surgery.