A Comparison of the Device-Related Complications of Intramedullary Lengthening Nails Using a New Classification System

Table 1

Descriptive statistics for the patients along nailing machine groups.

Demographic variables	ISKD; ()	PRECICE1	PRECICE2
Number of patients	19	18	23
Age (years)	28 ± 8	29 ± 7	29 ± 6
Sex (male : female)	20 : 5	15 : 3	17 : 6
Preoperative height (cm)	154 ± 6	161 ± 7	159 ± 6
Body mass index (kg/cm^2)	22 ± 3	23 ± 3	22 ± 4
Smoking history (yes : no)	9 : 26	5 : 29	7 : 33
Final length gain (mm)	48 ± 8	49 ± 8	51 ± 7
Bones lengthened (femur : tibia)	26 : 9	28 : 6	34 : 12
Duration of follow-up (months)	48 ± 6	18 ± 4	15 ± 5

Note. Values are expressed as mean ± standard deviation or as a ratio.