Table 1.

Characteristics of the study population

Number of patients (n)	15
Number of osteotomies (n)	16
Mean age at surgery [years (±SD)]	45 ± 14
Gender ratio (M:F)	9:6
Mean body length at surgery [cm (±SD)]	180 ± 11
Mean weight at surgery [kg (±SD)]	86 ± 20
Mean body mass index at surgery [kg/m2 (±SD)]	26 ± 4
Side (left:right)	6:10
Kellgren and Lawrence grade
Grade 1 [n (%)]	2 (12.5 %)
Grade 2 [n (%)]	3 (18.8 %)
Grade 3 [n (%)]	10 (62.5 %)
Grade 4 [n (%)]	1 (6.3 %)
Mean follow-up [months (±SD)]	40 ± 30