Table 1.

Demographic characteristics, investigations and outcome of the five presented cases

Case no.	Age (years)	Gender	Aetiology	Imaging	Tm-99 bone scan	Duration of pain relief	Outcome
1	37	Female	Idiopathic	MRI scan: normal SIJ	No uptake at SIJ	12 weeks	Complete relief of symptoms
2	26	Male	Fall from height “open-book” type of fracture treated with external fixation	CT scan: SIJ diastasis	Uptake at SIJ	6 weeks	Complete relief of symptoms
3	44	Female	Road-traffic accident; pelvic injury with isolated inferior pubic ramus fracture	Not performed	Not performed	2 h	Complete relief of symptoms
4	22	Female	Ski injury; no fracture identified	MRI scan: normal SIJ	No uptake at SIJ	4 h	Complete relief of symptoms
5	24	Male	Fall from height; undisplaced fracture pubic rami and ipsilateral fracture neck of femur	MRI scan: normal SIJ	No uptake at SIJ	10 weeks	Resolution of SIJ symptoms Persistence of lower back symptomatology