PURPOSE: To utilize the 'Forgotten Joint' Score (FJS), a 12-item questionnaire analysing the ability to forget the joint, for comparing preoperative status in osteoarthritic @entity1 scheduled for total hip arthroplasty (THA) or total knee arthroplasty (TKA). Higher scores represent a better result with a maximum of 100. The hypothesis of this study was that a preoperative difference in favour of @entity625 could eventually explain why THA is cited more often as a forgotten joint than TKA. METHODS: A prospective cohort study was conducted in 150 @entity1 with either tricompartmental knee (n  =  75) or @entity570 (n  =  75). @entity1 completed FJS-12 scores preoperatively and 1  year postoperatively. RESULTS: A similar preoperative FJS-12 was observed for hip (22 (15)) and knee @entity571 (24 (17)) (n.s.). The postoperative FJS-12 score was significantly higher for THA (80 (24)) than for TKA (70 (27)) (p  <  0.05). High reliability after 6  weeks was observed for the preoperative FJS-12 test-retest reliability (ICC  =  0.87) in TKA. A preoperative floor effect of 15  % in THA and 0  % in TKA was found as well as a postoperative ceiling effect of 33  % in THA and 9  % in TKA. CONCLUSIONS: The clinical relevance of utilizing the FJS-12 as an instrument to evaluate outcome is strongly proposed for knee arthroplasty. In general, one is not aware of a healthy joint during the ADL, and it can therefore be regarded as 'forgotten'. The preoperative FJS-12 Score is a powerful tool to provide @entity1 with clearer insights into their positive evolution after surgery. The use of the FJS-12 in THA is a topic for further research, as this study found that floor and ceiling effects limit its usefulness in studies evaluating clinical outcome in this area. LEVEL OF EVIDENCE: II.

Joint awareness in XXXX and knee evaluated with the 'Forgotten Joint' Score before and after joint replacement.

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients'] @entity625 :: ('MESH:D001168', 'Disease') :: ['hip arthritis'] @entity571 :: ('MESH:D010003', 'Disease') :: ['osteoarthritis'] @entity570 :: ('MESH:D015207', 'Disease') :: ['hip osteoarthritis']
@entity570 :: (MESH:D015207,Disease) :: ['osteoarthritis of the hip']
