Page 37 - The value of total hip and knee arthroplasties for patients

70-80% of the eligible patients were actually informed about the study. Reasons
for this could be that the local orthopaedic surgeons excluded patients in an early
stage (for reasons such as age, language, mental or physical health problems, or 2 participation in a different THA or TKA study). Moreover, logistical problems, such
as forgetting to inform the patients about the study or not registering patients
interest to receive more LOAS study information on the list that is weekly sent
to the coordinating researcher. Our goal is to attain a rate of 100% of potential
eligible patients that can be informed about and invited for the study. More effort
could be put in supporting the hospitals in logistic support to get all eligible
patients informed about the study. Secondly, about 40% of patients did not fill in
the preoperative questionnaire Possible reasons for this are not clear, but it could
be that the information about the study was insufficient or absent, surgery date
was too close, the number of PROMs too high, or personal health reasons such as
not being interested, already participating in a scientific study or having mental or
physical health problems).
In conclusion, with about 60% of all contacted patients in both THA and TKA being included in the present study, but relatively low attrition rates, in particular the initial inclusion of patients’ needs attention.
feasibility of collecting multiple PROMs
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