Table 1.

Patients’ clinical data

Patient no.	Risk factors and comorbidities
	Polytrauma (ISS)a	Nicotine	Alcohol	Tumour	Adipositas (BMI)b	Diabetes	Radiation before surgery	Arterial hypertension	Chronic renal failure	Coronary heart disease	Chronic obstr. pneum. disease
1				+			+
2	41
3					36	+
4					39
5	34	+	+
6					28	+		+	+
7						+		+		+
8					34		+			+
9	29
10	34
11		+	+	+	32						+
12			+						+
13	17
14	17				59
15	21

Patient no.	Implant						Surgery
	AO-USS fixator	AO-USS side opening fixator	Harrington	Plate	Screw	Cerclage	Laminectomy	Costo-transversectomy	Spondylodesis	Bone graft iliac crest	Bone graft local bone
1		+						+
2	+
3		+
4			+
5	+
6							+
7	+
8							+		+
9	+						+			+
10	+
11		+					+	+	+
12					+	+				+
13	+
14				+			+		+		+
15		+					+		+	+

^aInjury severity score [5]

^bBody mass index (kg/m²)