Clinical and radiological outcome of Mason-Johnston types III and IV radial head fractures treated by an on-table reconstruction

Table 2 Complications outcome data (for this case series and existing literature)

	Number of cases	Non-/Malunions	Avascular necrosis	Elbow instability	Degenerative changes	Hardware breakage	Implant loosening/dislocation	Infections	implant associated soft tissue irritation	Signs of heterotopic ossifications	Neurological deficits	Elbow stiffness	Revision surgery	Pain
Businger et al. [16]	6	0	0	0	1*	N.s	0	0	N.s	N.s	N.s	N.s	N.s	1 (mild)
Kumar et al. [17]	6	3	1**	0	0	0	0	N.s	N.s	0	N.s	N.s	N.s	0
Everding et al. [18]	9	1	0	0	9***	N.s	N.s	N.s	3	9****	0	2	7'	N.s
This study	14	1	0	3	11*****	1	3	0	5	1	0	4	6	2
Cumulative calculations	35	5	1	3	21	1	3	0	8	10	0	6	13	1.7

*According to the Broberg and Morrey Score: 1 × grade I
**Nonunion with avascular necrosis
***According to the Broberg and Morrey Score: 5 × grade I, 4 × grade II
****According to the Hastings and Graham Score: 5 × grade I, 3 × grade IIa, 1 × grade IIb
*****According to the Broberg and Morrey Score: 6 × grade I, 3 × grade II, 2 × grade III
' 2 × implant removal due to ulno-radial impingement; 2 × arthroscopic arthrolysis due to stiffness; 3 × ulnar plate removal due to soft tissue irritation

ISSN: 1749-799X