TABLE II.

Comparison of Demographic, Clinical, and Radiographic Data Between the Treatment Methods

Variable	Circular Fixation*	Motorized Nail*	P Value
Age† (yr)	15.8 ± 1.9 (16.3; 12.3-18.8)	18.2 ± 1.7 (18.6; 15.5-21.2)	<0.01
Male patients (no. [%])	7 (50)	7 (54)	0.84
Limb-length discrepancy at time of operation† (cm)	8.4 ± 3.9 (7; 4.5-17)	6.8 ± 2.5 (6; 4-12)	0.30
Lengthening amount† (cm)	4.8 ± 1.7 (5.0; 1-7.4)	4.4 ± 1.6 (4.5; 1.5-7)	0.63
Length of hospitalization for all patients† (days)	47.9 ± 46.0 (28.5; 7-134)	34.2 ± 63.0 (8; 4-224)	0.04
Length of hospitalization for patients who chose not to extend stay†‡ (days)	19.3 ± 25.3 (9.5; 7-81)	17.1 ± 35.0 (7; 4-133)	0.12
No. (%) of lengthening sessions for patients who extended hospitalization by choice	6 (43)	2 (13)	0.11
Time to full weight-bearing† (mo)	8.8 ± 2.3 (9.1; 4.8-13)	7.7 ± 2.2 (7.4; 4.4-11.7)	0.27
Length of follow-up† (yr)	3.6 ± 2.0 (2.8; 1.1-7.6)	3.0 ± 1.5 (2.7; 1.1-5.8)	0.60

^*The circular fixation group included fourteen lengthening sessions in fourteen patients, and the motorized nail group included fifteen lengthening sessions in thirteen patients.

^†The values are given as the mean and the standard deviation, with the median and the range in parentheses.

^‡Length of hospitalization after removal of data on patients who chose to extend their hospitalization for monitoring and/or therapy.