Table 3.

Change in radiographic measurements after calcaneal lengthening in patients with cerebral palsy

Parameters	Preoperative	Postoperative	Mean difference	p value	Normal alignment [6]
AP talus-first metatarsal angle (°)	22.3 ± 11.3	2.4 ± 13.6	19.9 ± 14.4	< 0.001	10 ± 7.0
Calcaneal pitch angle (°)	2.9 ± 8.8	7.3 ± 8.1	−4.4 ± 7.2	< 0.001	17 ± 6.0
Lateral talocalcaneal angle (°)	47.0 ± 9.5	37.9 ± 9.2	9.1 ± 8.5	< 0.001	49 ± 6.9
Lateral talus-first metatarsal angle (°)	30.2 ± 15.6	11.6 ± 13.1	18.5 ± 13.8	< 0.001	13 ± 7.5
Naviculocuboid overlap (%)	69.0 ± 17.2	37.8 ± 22.1	31.2 ± 22.9	< 0.001	47 ± 13.8
Relative calcaneal length	1.9 ± 0.2	2.0 ± 0.3	−0.1 ± 0.3	0.016	–
Calcaneocuboid joint subluxation (°)	0.2 ± 1.5	1.4 ± 1.9	−1.2 ± 1.8	< 0.001	–

The paired t-test was used to evaluate the statistical significance between the preoperative and postoperative measurements.