Modification to Mirels scoring system location component improves fracture prediction for metastatic disease of the proximal femur

Table 2 Detailed demographics of the 8 fracture cases

	Primary Cancer	Axial Lesion Location	Angular Lesion Location	Original Mirels Score	Time to Fracture	Notes
1	Renal Cell	Diaphyseal	Anterior	11	0 days	Fracture at time of CT scan
2	Multiple Myeloma	Diaphyseal	Central	9	3 months	Fracture during follow-up (Mirels Pain 1)
3	Breast	Subtrochanteric	Posterior medial	12	4 days	Fracture prior to scheduled surgery
4	Multiple Myeloma	Diaphyseal	Posterior medial	9	2 months	Fracture during follow-up (Mirels Pain 1)
5	Anal	Femoral head	Medial	12	4 months	Declined prophylactic stabilization
6	Renal Cell	Subtrochanteric	Posterior medial	9	2 months	Fracture during follow-up (Mirels Pain 1)
7	Unknown	Subtrochanteric	Central	12	10 days	Intraoperative fracture
8	Breast	Diaphyseal	Posterior	10	0 days	Fracture at time of CT scan

Eight patients sustained fractures of the proximal femur during the 4 month follow-up period from time of initial CT scan

ISSN: 1471-2474