PMID- 16154777
OWN - NLM
STAT- MEDLINE
DCOM- 20060522
LR  - 20220331
IS  - 1063-4584 (Print)
IS  - 1063-4584 (Linking)
VI  - 13
IP  - 12
DP  - 2005 Dec
TI  - Responsiveness and clinically important differences for the WOMAC and SF-36 after 
      hip joint replacement.
PG  - 1076-83
AB  - OBJECTIVES: To study responsiveness and establish the minimal clinically 
      important differences (MCID) and minimal detectable change (MDC) in patients 
      undergoing total hip replacement (THR) using the Short Form 36 (SF-36) and the 
      Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). METHODS: 
      We conducted a prospective observational study in three public hospitals of all 
      consecutive patients with a diagnosis of hip osteoarthritis (OA) on waiting lists 
      to undergo THR. Patients completed the SF-36 and the WOMAC (subscales transformed 
      to 0 to 100), which measured the health-related quality of life (HRQoL), before 
      intervention and 6 months and 2 years later, and additional transitional 
      questions, which measured the changes in the joint 6 months postoperatively. 
      RESULTS: Improvements at 6 months after a THR were between 37 (stiffness) and 39 
      points (pain), depending on the WOMAC domain. The SF-36 domains also showed 
      improvements: physical function (31.91), physical role (33.71), and bodily pain 
      (29.77). From 6 months to 2 years, improvements ranged from 2 to 5 points, except 
      for role physical (13.25). A ceiling effect was detected on some WOMAC domains as 
      well as a floor effect on the SF-36. The MCID ranged from 25.91 (stiffness) to 
      29.26 (pain) on the WOMAC and from 10.78 (physical role) to 20.40 (physical 
      function) on the SF-36. The MDC ranged from 21.38 (pain) to 27.98 (stiffness) on 
      the WOMAC and from 18.99 (physical function) to 42.05 (social function) on the 
      SF-36. CONCLUSIONS: These values indicate expected gains after THR. However, the 
      MCID and MDC values must be viewed cautiously due to the uncertainty of these 
      estimators and should not be considered as absolute thresholds.
FAU - Quintana, J M
AU  - Quintana JM
AD  - Hospital de Galdakao, Unidad de Investigacion, Barrio labeaga s/n, 48960 
      Galdakao, Vizcaya, Spain. jmquinta@hgda.osakidetza.net
FAU - Escobar, A
AU  - Escobar A
FAU - Bilbao, A
AU  - Bilbao A
FAU - Arostegui, I
AU  - Arostegui I
FAU - Lafuente, I
AU  - Lafuente I
FAU - Vidaurreta, I
AU  - Vidaurreta I
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20050909
PL  - England
TA  - Osteoarthritis Cartilage
JT  - Osteoarthritis and cartilage
JID - 9305697
SB  - IM
MH  - Aged
MH  - Arthroplasty, Replacement, Hip/*rehabilitation
MH  - Female
MH  - Follow-Up Studies
MH  - *Health Status Indicators
MH  - Hip Joint/physiopathology
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Osteoarthritis, Hip/physiopathology/rehabilitation/*surgery
MH  - Pain/surgery
MH  - Prospective Studies
MH  - *Quality of Life
MH  - Treatment Outcome
EDAT- 2005/09/13 09:00
MHDA- 2006/05/23 09:00
CRDT- 2005/09/13 09:00
PHST- 2005/05/04 00:00 [received]
PHST- 2005/06/30 00:00 [accepted]
PHST- 2005/09/13 09:00 [pubmed]
PHST- 2006/05/23 09:00 [medline]
PHST- 2005/09/13 09:00 [entrez]
AID - S1063-4584(05)00178-0 [pii]
AID - 10.1016/j.joca.2005.06.012 [doi]
PST - ppublish
SO  - Osteoarthritis Cartilage. 2005 Dec;13(12):1076-83. doi: 
      10.1016/j.joca.2005.06.012. Epub 2005 Sep 9.