Table 2.

Radiographic comparison between the two groups

Variable	Treatment group (injection)	Control group (noninjection)	p value
Latent period (days)*	7.4 (7–8)	7.6 (7–9)	0.45
Distraction rate (mm/day)*	0.75 (0.55–1.13)	0.72 (0.52–1.20)	0.24
Final length gain (mm)*	58 (43–70)	66 (46–73)	0.08
External fixator index (months/cm)*	0.53 (0.37–0.63)	0.49 (0.43–0.53)	0.12
Intramedullary nail diameter (cm)*	9.2 (8–10)	8.9 (8–10)	0.30
Intramedullary nail length (cm)*	290 (270–300)	290 (285–300)	0.14
Mean cortical healing index (months/cm)
Anterior cortex	1.14	1.47	< 0.01
Posterior cortex	0.81	1.26	< 0.01
Medial cortex	0.96	1.42	< 0.01
Lateral cortex	0.88	1.22	< 0.01
Mean full weightbearing index (months/cm)	0.89	1.38	< 0.01

* Values are expressed as mean, with range in parentheses.