Table 2.

Included studies on distraction osteogenesis.

Study	Nr. of patients	Mean age (years)	Gustillo-Anderson	Mean bone defect (cm)	Union (%)	Amputation (%)	Infection (%)
Sen (22)	24	31	III	5	100	0	4
Koettstorfer (23)	5	34	III	11	100	0	0
Niekerk( 24)	12	32	III	8	92	8	0
Hutson (25)	19	32	III	9	100	0	0