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ObjectivesTo explore the impact of a temporary cancellation of elective surgery in winter 2017 on trends in primary hip and knee replacement at a major National Health Service (NHS) Trust, and whether lessons can be learnt about efficient surgery provision.Design and settingObservational descriptive study using interrupted time series analysis of hospital records to explore trends in primary hip and knee replacement surgery at a major NHS Trust, as well as patient characteristics, 2016-2019.InterventionA temporary cancellation of elective services for 2 months in winter 2017.OutcomesNHS-funded hospital admissions for primary hip or knee replacement, length of stay and bed occupancy. Additionally, we explored the ratio of elective to emergency admissions at the Trust as a measure of elective capacity, and the ratio of public to private provision of NHS-funded hip and knee surgery.ResultsAfter winter 2017, there was a sustained reduction in the number of knee replacements, a decrease in the proportion of most deprived people having knee replacements and an increase in average age for knee replacement and comorbidity for both types of surgery. The ratio of public to private provision dropped after winter 2017, and elective capacity generally has reduced over time. There was clear seasonality in provision of elective surgery, with less complex patients admitted during winter.ConclusionsDeclining elective capacity and seasonality has a marked effect on the provision of joint replacement, despite efficiency improvements in hospital treatment. The Trust has outsourced less complex patients to independent providers, and/or treated them during winter when capacity is most limited. There is a need to explore whether these are strategies that could be used explicitly to maximise the use of limited elective capacity, provide benefit to patients and value for money for taxpayers.

Original publication

DOI

10.1136/bmjopen-2022-066398

Type

Journal article

Journal

Bmj open

Publication Date

05/2023

Volume

13

Addresses

NIHR ARC West, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK Timothy.Jones@bristol.ac.uk.

Keywords

Humans, Hospitalization, Arthroplasty, Replacement, Hip, Arthroplasty, Replacement, Knee, State Medicine, Interrupted Time Series Analysis