Recorded deviations from routine, assessment of number of near misses within this and number of adverse events
| Number of deviationsfrom routine | Number of near misses | Number of adverse events | |
|---|---|---|---|
| Preoperative | |||
| Delay in starting operation | 12 | 0 | 0 |
| Anaesthetic problems | 4 | 0 | 0 |
| Miscellaneous | 11 | 9 | 0 |
| Total | 27 | 9 | 0 |
| Intraoperative | |||
| Extended surgery | 4 | 0 | 0 |
| Defective instruments | 20 | 14 | 0 |
| Difficult operation | 14 | 0 | 0 |
| Complications | 26 | 0 | 0 |
| Miscellaneous | 5 | 2 | 1 |
| Total | 69 | 16 | 1 |
| Postoperative | |||
| 0 | 0 | 0 | |
| Totals | 96 | 25 | 1 |









