Hip replacements are one of the NHS's highest volume procedures, with \ 14,000 operations per month before the onset of the COVID-19 pandemic. Delays to surgery can have significant implications; meaning increasing levels of pain and worsening quality of life. As of January 2021, following the initial waves of the COVID-19 pandemic, 58,000 people had waited an average of 25 additional weeks for their total hip replacement. The results of the study will hopefully help treating clinicians identify patients in whom there may be further deterioration if surgery is significantly delayed.