TABLE 3.

Maximum strength (torque) scores measured in the SDR-PT, PT-only, and ND groups^*

	SDR-PT Group (29 children)			PT-Only Group (36 children)
Max Strength (nm/kg)	Preop†	Postop (8 mos)	Postop (20 mos)†	Pre-PT†	Post-PT (8 mos)	Post-PT (20 mos)	ND Group (39 children)
ankle PF‡	0.37 ± 0.24	0.51 ± 0.27	0.51 ± 0.30§	0.41 ± 0.29	0.38 ± 0.27	0.37 ± 0.28†	1.10 ± 0.40
ankle DF	0.20 ± 0.10	0.20 ± 0.10	0.24 ± 0.10	0.20 ± 0.10	0.23 ± 0.09	0.22 ± 0.09†	0.41 ± 0.11
knee flex	0.52 ± 0.31	0.56 ± 0.29	0.64 ± 0.28	0.54 ± 0.25	0.57 ± 0.27	0.66 ± 0.31†§	0.92 ± 0.34
knee ext	0.86 ± 0.45	1.03 ± 0.44	1.14 ± 0.42§	0.92 ± 0.43	1.07 ± 0.44	1.06 ± 0.48†	1.66 ± 0.78
hip abd	0.48 ± 0.26	0.53 ± 0.25	0.59 ± 0.25	0.54 ± 0.22	0.58 ± 0.23	0.61 ± 0.30†	1.05 ± 0.31
hip add	0.68 ± 0.27	0.70 ± 0.30	0.76 ± 0.29	0.76 ± 0.25	0.87 ± 0.26	0.93 ± 0.35§	1.14 ± 0.42

^*Data unavailable in four children. Abbreviations: abd = abductor; add = adductor; DF = dorsiflexor; ext = extensor; flex = flexor; max = maximum; PF = plantar flexor.

^†Significantly different from the ND group (p < 0.05).

^‡Significantly different pre- to postoperative change compared with the change in the PT-only group (p < 0.05).

^§Significantly different from pretreament or initial visit (p < 0.05).