Soft tissue release combined with joint-sparing osteotomy for treatment of cavovarus foot deformity in older children: Analysis of 21 cases

Table 1 The Wicart grading system for assessing therapeutic efficacy for cavovarus foot

Grade	Symptoms	Heel axis and Meary’s angle (M°)
Very good	None	Valgus, 0° ≤ M < 15° or neutral/mild varus, 0° ≤ M < 5°
Good	None	Valgus, 15° ≤ M < 20° or neutral, 5° ≤ M < 20° or varus, 5° ≤ M < 15° or -15° ≤ M < 0° (mild overcorrection)
Fair	None	Valgus/neutral, M > 20° or varus, M > 15° or M < -15° (overcorrection)
Poor	Pain/sprains	Recurrence or need for triple arthrodesis

Table 2 Assessment results before surgery and at last follow-up

Time	Meary’s angle (°)	Hibbs’ angle (°)
Before surgery	24.11 ± 2.948	135.86 ± 5.345
Last follow-up	6.36 ± 1.810	160.21 ± 4.167
t	27.151	19.017
P value	< 0.001	< 0.001