Page 61 - The value of total hip and knee arthroplasties for patients

Unfulfilled expectations after total hip and knee arthroplasty surgery: there’s a need for better preoperative patient information and education
Results
Response
Figure 1 describes the flow of patients. Of 665 eligible patients undergoing THA
and 599 patients undergoing TKA, 428 THA patients (64%) and 417 TKA (70%)
patients agreed to participate and completed the survey 1 day preoperatively.
After 1 year, 4 of the THA patients in the total cohor t were deceased, 2 were too
sick to fill in the questionnaire, and 79 were lost to follow-up or did not return
the questionnaire. In the TKA group, 4 patients were deceased, 3 were too sick 4 to fill in the questionnaire, and 88 were lost to follow-up or did not return the questionnaire. The 343 THA (80%) and 322 TKA (77%) patients who completed
both the complete set of preoperative and the postoperative questionnaires are included in the current analyses.
Figure 1. Flow Diagram
Reasons for exclusion * (N=80)
Lost to follow –up (N=237)
 Lost to follow up (N=79)
 Too sick (N=2)
 Died (N=4)
Hip replacements Oct 2010-Sept 2012 (N=745)
Hip replacement for primary osteoarthritis (N=665)
Willing to participate (=Inclusion in Vespa Study)
N=428
Knee replacements Oct 2010-Sept 2012
(N=614)
Knee replacement for primary osteoarthritis (N=599)
Willing to participate (=Inclusion in Vespa Study)
N=417
One year follow up hip
N=343
One year follow up knee
N=322
Reasons for exclusion * (N=15)
Lost to follow –up (N=182)
 Lost to follow up (N=88)
 Too sick (N=3)
 Died (N=4)
Figure 1. Flow Diagram
* Reasons for exclusion: patients who did not understand Dutch or being physically or mentally able to complete
* Reasonsqufeostrioennxacirlues,iopanti:epntastwieitnhtrsevwisihonosudrgideryn, ountdeurngodinegrsathaenmdi-aDrthurtocphlasotyr, obr uenindegrgpoihnygsaicTaHlAlyoroTrKAmentally able to because of a tumor or rheumatoid arthritis.
complete questionnaires, patients with revision surgery, undergoing a hemi-arthroplasty, or undergoing aTHA orTKA because of a tumor or rheumatoid arthritis.
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