Table 1.

Definition of the OF-Score in accordance to Blattert et al. [3]

OF-Score
Parameter	Grade	Points
Fracture classification type (OF 1 -5)	1 – 5	2—10
Bone mineral density	T-score < -3	1
Ongoing fracture process	Yes; No	1; -1
Pain (under analgesia)	VAS ≥ 4; < 4	1; -1
Neurological deficit	Yes	2
Mobilization (under analgesia)	No; Yes	1;—1
Health status	ASA > 3; dementia; BMI > 20 kg/m2; nursing case; anticoagulation	Each -1; Max. -2

0–5 points: nonsurgical; 6 points: nonsurgical or surgical; > 6 points: surgical

Abbreviations: ASA American Society of Anesthesiologists risk classification, BMI Body mass index, VAS Visual analogue scale for pain, Max Maximum