Kristina K Harris

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OBJECTIVES To present estimates of clinically meaningful or minimal important changes for the Oxford Hip Score (OHS) and the Oxford Knee Score (OKS) after joint replacement surgery. STUDY DESIGN AND SETTING Secondary data analysis of the NHS patient-reported outcome measures data set that included 82,415 patients listed for hip replacement surgery and(More)
The purpose of this paper was to examine if pain and functioning can be distinguished in the Oxford Knee Score (OKS) in a meaningful way. This was done by (1) conducting exploratory factor analysis to explore the factorial structure of the OKS and (2) conducting confirmatory factor analysis to examine whether a two-factor solution is superior to a(More)
OBJECTIVES The objective was to examine whether the Oxford Hip Score (OHS) demonstrated a floor or a ceiling effect when used to measure the outcome of hip replacement surgery in a large national cohort. SETTING Secondary database analysis of a national audit conducted in England and Wales on patient undergoing hip and knee arthroplasty in a secondary(More)
OBJECTIVES To assess the validity of the Oxford Knee Score (OKS) for use in patients undergoing non-operative management for their knee osteoarthritis (OA) within the National Health Service (NHS). DESIGN Observational cohort study. SETTING Single orthopaedic centre in England. PARTICIPANTS 134 patients undergoing non-operative management for knee OA.(More)
OBJECTIVE The objective of this study was to explore dimensionality of the Oxford Hip Score (OHS) and examine whether self-reported pain and functioning can be distinguished in the form of subscales. METHODS This was a secondary data analysis of the UK NHS hospital episode statistics/patient-reported outcome measures dataset containing pre-operative OHS(More)
BACKGROUND Rupture of the anterior cruciate ligament (ACL) is a common injury, mainly affecting young, physically active individuals. The injury is characterised by joint instability, leading to decreased activity, which can lead to poor knee-related quality of life. It is also associated with increased risk of secondary osteoarthritis of the knee. It is(More)
Early knee OA is a significant problem that can be disabling. The purpose of this study was to understand the symptomatic profile of patients with early knee OA when compared to those with end-stage knee OA. A cross-sectional case control study design was used to compare those with early structural change to those with advanced structural change. In total,(More)
Conclusion This study produced a range of context-specific estimates of minimal important change/difference for the OKS/OHS. We would recommend, based on current evidence, that the OKS/OHS MIDs are used to indicate meaningful difference between patients (e.g. in clinical trials) and the OKS/OHS MICs to indicate meaningful change from baseline in a single(More)
OBJECTIVES To identify patient-reported outcome measures (PROMs) that have been developed and/or used with patients undergoing hip or knee replacement surgery and to provide a shortlist of the most promising generic and condition-specific instruments. METHODS A systematic review of the literature was performed to identify measures used in patients(More)
Results The proposed number of factors to extract depended on the method employed. Velicer’s Minimum Average Partial test suggested one factor, the Cattell’s scree test and parallel analysis suggested two factors, and the second eigenvalue of 1.04 also suggested two factors. Exploratory factor analysis demonstrated that the 2-factor OHS had most of the(More)