Table 2.

Radiographic parameters of humeral shaft fractures in relation to union or delayed/non-union.

	Union	Delayed/ non-union
Mid-shaft fractures	31 (72%)	15 (68%)
Proximal third fractures	10	4
Distal third fractures	2	3
Spiral fractures (A1)	26 (60%)	10 (45%) (p = 0.29)
Transverse fractures (A3)	15 (35%)	11 (50%) (p = 0.29)
Wedge fractures (B2)	3	1
Multi-fragmentary fractures (C3)	3	0
Mean fracture displacement (mm)	20.9	32.3 (p < 0.001)
Mean fracture angulation (degrees)	20.2	29.2 (p = 0.01)
Bone to soft tissue ratio	0.52 (range 0.33–0.83)	0.48 (range 0.34–0.71) (p = 0.16)