Table 1.

Data for 11 patients with insufficiency fractures of the femur

Patient number	Age (years)	Side	Fracture location	Bisphosphonate	Duration of bisphosphonate treatment (years)	DXA	Fracture displacement	Interval* (months)	Surgical treatment	Followup (months)
1	63	Left	Subtrochanter	Alendronate	4	−1.7	No		Not done	18
2	64	Left	Subtrochanter	Alendronate	5	−1.6	No		IM nailing	24
3	75	Left	Midshaft	Pamidronate	5	−2.9	No		Plate fixation	12
	75	Right	Midshaft				Yes	12	IM nailing	12
4	67	Left	Subtrochanter	Alendronate	10	−1.5	Yes	1	CHS fixation	12
5	78	Left	Midshaft	Pamidronate	3	−2.2	No		Plate fixation	18
6	65	Left	Subtrochanter	Alendronate	4	−2.7	No		IM nailing	48
	65	Right	Subtrochanter				Yes	19	CHS fixation	48
7	60	Left	Subtrochanter	Alendronate	4	−1.7	No		IM nailing	36
	60	Right	Subtrochanter				Yes	3	CHS fixation	36
8	57	Right	Midshaft	Alendronate	3	−1.9	No		Not done	24
9	68	Right	Midshaft	Alendronate	5	−3.8	No		Not done	36
10	82	Right	Midshaft	Alendronate	4	−4.8	Yes	15	IM nailing	60
11	73	Left	Midshaft	Alendronate	4	−2.9	No		Not done	12

*Time between the diagnosis of insufficiency fracture and fracture displacement; DXA = dual-energy xray absorptiometry (lowest T-score of total femur or lumbar area); IM = intramedullary; CHS = compression hip screw