Table 3.

Frequency and type of operative stabilization of the posterior and anterior pelvis, depending on FFP-classification

FFP categories		FFP I–IV	FFP type I	FFP type II	FFP type III	FFF type IV	p value
Number of operatively treated patients		140	2	52	18	68
Posterior pelvis	O or P
IS screws unilateral	P	30	0	25	3	2	< 0.001
IS screws bilateral	P	7	0	2	1	4	0.88
IS screw with plate and screw osteosynthesis ilium	O	2	0	0	1	1	0.24
Transsacral bar	P	29	0	9	1	19	0.09
Transsacral bar with unilateral IS screw	P	16	0	7	3	6	0.46
Transsacral bar with bilateral IS screws	P	36	0	6	0	30	< 0.001
Transsacral bar with plate and screw osteosynthesis ilium	O	2	0	0	0	2	0.63
Transiliac bridging plate osteosynthesis with bilateral IS screws	P	1	0	0	0	1	1
Plate and screw osteosynthesis ilium	O	10	0	0	9	1	< 0.001
Internal fixator	P	1	0	1	0	0	0.51
Internal fixator with bilateral IS screws	P	1	0	0	0	1	1
Lumbopelvic fixation with bilateral IS screws	O	1	0	0	0	1	1
Sum		136	0	50	18	68	0.38
Number of operatively treated patients		140	2	52	18	68
Anterior pelvis	O or P
Unilateral retrograde transpubic screw	P	48	0	29	6	13	< 0.001
Bilateral retrograde transpubic screw	P	9	1	4	1	3	0.78
Retrograde transpubic screw and plate and screw osteosynthesis	O	3	0	1	0	2	1
Plate and screw osteosynthesis	O	28	1	5	7	15	0.02
Plate and screw osteosynthesis and external fixator	O	2	0	0	0	2	0.63
Sum		90	2	39	14	35	0.01
Patients who received percutaneous procedures only (P-group)(n, %)	P	99 (70.7)	1	46 (88.5)	6 (33.3)	46 (67.6)	< 0.001
Patients who received open procedures (O-group) (n, %)	O	41 (29.3)	1	6 (11.5)	12 (66.7)	22 (32.4)	< 0.001

P values below 0.05 are shown in bold

O open procedure, P percutaneous procedure

*Due to the low number of patients with FFP type I, % is not calculated