Arthroplasty Outcomes in Regional Australia (AORA) A clinical quality registry of patients with hip and knee arthritis treated in a regional area

This is a prospective, observational registry-based study assessing outcomes of total knee and hip joint replacement surgery. The primary objective of this protocol is to determine predictors of patient outcomes collected routinely as part of the standard clinical pathway for lower limb arthroplasty performed by the participating surgeons. Predictors will include demographics, comorbidities, relevant clinical and operative details, and preoperative patient-reported pain and function measures including the Veterans-Rand 12-item quality of life questionnaire (VR-12), the Knee Osteoarthritis Outcome Score (12-item; KOOS-12), the Hip Osteoarthritis Outcome Score (12-item; HOOS-12), and the MODEMs patient expectations scale. Patient outcomes will include postoperative KOOS-12/HOOS-12 scores, self-rated kneeling ability, the postoperative component of the MODEMs expectations scale, patient satisfaction, and revisions or complications arising as a result of treatment. Recruitment will include all patients presenting with lower limb (knee or hip) pathology to the principal and associate investigators at their consulting rooms. Patients will undergo routine standard of care preoperative work-up, including the collection of demographic information, medical history, radiology, pathology, and functional analysis. Patients will in addition be requested to complete patient-reported outcome measures (PROMs) to enable evaluation of important surgical outcomes as part of the post-operative follow up. The outcomes of individual patients will be monitored up to 2 years postoperatively.