Prognostic Factors Associated With Failure of Total Elbow Replacement

Prognostic Factors Associated With Failure of Total Elbow Replacement: a Protocol for Analysis of National Joint Registry Data

This observational study aims to evaluate potential prognostic factors for TER failure . The National Joint Registry (NJR) currently contains the largest elbow registry dataset in the world, which has been shown to have high completeness and accuracy. In order to incorporate additional potential prognostic factors not captured in the NJR, this study will combine the NJR elbow dataset with the NHS England Hospital Episode Statistics-Admitted Patient Care (HES-APC) data. Understanding prognostic factors is a crucial step for informing the development of strategies aimed at minimising the risk of failure and the necessity for additional surgery, which poses a burden on patients and society.

Inclusion Criteria:

All patients aged 16 to 100 years old with a primary TER on the National Joint Registry (NJR) elbow dataset from the start of data collection on the 1st of April 2012 to the 31st of December 2023 will be included.

Exclusion Criteria:

Patients are excluded if they did not consent for their data to be used for research purposes, if it is impossible to trace them after surgery, if their ID numbers are invalid, or if the surgery was not performed in England.

Unconfirmed procedures and procedures with inconsistent operative patterns (i.e. a sequence of operations where the primary operation is not the first operation in the sequence or where there are multiple primary operations recorded for the same joint) will be excluded from the analyses.