Table 1

Timing of acute deterioration, as described in the free-text section of the patient safety incident reports

Deterioration described to have occurred	Number of reports (%)
During cement insertion	24	39
Shortly after cement insertion	6	10
After cement insertion	16	26
During prosthesis insertion	2	3
After prosthesis insertion	1	2
At closing	1	2
Within 1 min of cement insertion	3	5
2–3 min after cement insertion	4	6
4–6 min after cement insertion	3	5
7–15 min after cement insertion	2	3
Total	62	100