From Public Health Scotland:
The total number of planned operations across NHSScotland during May 2022 was 21,895. This represents an increase of 19% from 18,392 in April 2022 and is 9% higher than the number planned in May 2021. Of all planned operations during May 2022, 667 (3.0%) were cancelled by the hospital based on clinical reasons, 483 (2.2%) were cancelled by the hospital due to capacity or non-clinical reasons, 665 (3.0%) were cancelled by the patient and 96 (0.4%) were cancelled due to other reasons. The rate of cancellations by patients has returned to pre-pandemic levels.https://www.publichealthscotland.scot/publications/cancelled-planned-operations/cancelled-planned-operations-month-ending-31-may-2022/
Only those operations cancelled due to capacity or non-clinical reasons can be considered evidence of failure of the system to deliver the service expected by patients. So, taking away those cancelled for good, clinical or personal, reason (1244) from the total performed (21 895) we get the number that might, with the resourcing, have been performed (20 651). The 665 which could not be performed due to lack of staff or operating theatres represents 3.2% of the total of 20 651. So 96.8% were performed as planned, above the typical 95% targets applied to many NHS outcomes.