Original ArticleOutcome Assessment in the Elderly After Total Hip Arthroplasty
Section snippets
Materials and Methods
The data for this study were collected as part of a larger survey of patients after THA. Ninety-nine consecutive patients, who fulfilled the inclusion criteria, were invited to take part. Those who agreed were randomized to 1 of 2 groups. One group was allocated to receive both SF-36 and Oxford Hip questionnaires by post for completion, and the other group was allocated to have their questionnaires completed by interview. Patients were excluded if they had prior knowledge of either form, had a
Participation Rates
Consent rates were as follows: 9 (9%) refused to participate in the study. Of the 90 who took part 77 (85%) completed the questionnaires as per protocol for the randomized groups.
Of the 45 asked to self-complete the questionnaire by post, 3 were unable to do so, 2 were registered blind, and 1 had severe rheumatoid arthritis and was unable to write. These people were offered interview administration and all agreed.
Of the 45 who were assigned to the interview administration, 10 were unable to do
Discussion
The results of this study suggest that overall patient-based data on health outcome in the elderly population is reliable. The patients in this series were all older than 65 years, with 39% being more than 75 years. The response rate was 91%, with 85% of those completing the questionnaires in full. This was higher than previously reported studies of 71% and 82% response rates for SF-36 and 85% for Oxford questionnaire in the same age group 6, 23, 24. (There was crossover in our study, but this
Summary
The SF-36 and Oxford questionnaires are a reliable form of assessment in an elderly population after THA. The 2 questionnaires correlate well to pain and function, more so when the forms are self-administered, indicating their sensitivity and specificity to these outcomes. The Oxford Hip score is administered effectively to the elderly population when assessing THA with fewer missing values, consistency with either mode of administration, and better compliance than the SF-36, but may not truly
Acknowledgment
The authors thank P. Gibson for the support and opportunity to access his patients. They also thank Depuy International for the statistical support.
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2011, InjuryCitation Excerpt :When comparing the OHS with the SF-36 it performs similarly in assessing outcomes following hip replacement,12 but a higher questionnaire completion rate and greater responsiveness is noted in some sections of the OHS. Wood et al.61 compared the OHS and SF-36 in the elderly after hip arthroplasty and found both scores complemented each other, but the OHS had higher compliance, with an 83% response rate whilst the SF-36 was only 67%. The Harris Hip Score has also been compared to the NHP after hip replacement18 and shown to have strong correlation with the NHP at five year follow-up.
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No benefits or funds were received in support of the study.