PMID- 24253376
OWN - NLM
STAT- MEDLINE
DCOM- 20141208
LR  - 20220408
IS  - 1433-7347 (Electronic)
IS  - 0942-2056 (Linking)
VI  - 22
IP  - 8
DP  - 2014 Aug
TI  - The minimal clinically important difference in the Oxford knee score and Short 
      Form 12 score after total knee arthroplasty.
PG  - 1933-9
LID - 10.1007/s00167-013-2776-5 [doi]
AB  - PURPOSE: The aim of this study was to identify the minimal clinically important 
      difference (MCID) in the Oxford knee score (OKS) and Short Form (SF-) 12 score 
      after total knee arthroplasty (TKA). METHODS: Prospective pre-operative and 1 
      year post-operative OKS and SF-12 scores for 505 patients undergoing a primary 
      TKA for osteoarthritis were collected during a one-year period. Patient 
      satisfaction with their (1) patient relief and (2) functional outcome was used as 
      the anchor questions. Their response to each question was recorded using a 
      5-point Likert scale: excellent, very well, well, fair, and poor. Simple linear 
      regression was used to calculate the MCID for improvement in the OKS and physical 
      component of the SF-12 score according to the level of patient satisfaction with 
      their pain relief and function. RESULTS: The OKS improved by 15.5 (95 % CI 
      14.7-16.4) points and the SF-12 physical component score improved by 10.1 (95 % 
      CI 9.1-11.2) points for the study cohort. The level of patient satisfaction with 
      their pain relief and function correlated with the improvement in the OKS (r = 
      0.56; p < 0.001, and r = 0.56; p < 0.001) and the physical component of the SF-12 
      score (r = 0.51; p < 0.001, and r = 0.60; p < 0.001), respectively. The MCID for 
      the OKS was 5.0 (95 % CI 4.4-5.5) and 4.3 (95 % CI 3.8-4.8) points and for the 
      physical component of the SF-12, it was 4.5 (95 % CI 3.9-5.2) and 4.8 (95 % CI 
      4.2-5.4) points for pain relief and function, respectively. CONCLUSION: The MCID 
      identified for the OKS and SF-12 physical component score after TKA is the best 
      available estimate and can be used to power studies and ensure that a statistical 
      difference is also recognised by a patient.
FAU - Clement, N D
AU  - Clement ND
AD  - Royal Infirmary of Edinburgh, Little France, Edinburgh, EH16 4SA, UK, 
      nickclement@doctors.org.uk.
FAU - MacDonald, D
AU  - MacDonald D
FAU - Simpson, A H R W
AU  - Simpson AH
LA  - eng
PT  - Journal Article
DEP - 20131120
PL  - Germany
TA  - Knee Surg Sports Traumatol Arthrosc
JT  - Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA
JID - 9314730
SB  - IM
EIN - Knee Surg Sports Traumatol Arthrosc. 2016 Nov;24(11):3696. PMID: 26801782
MH  - Adult
MH  - Aged
MH  - Aged, 80 and over
MH  - *Arthroplasty, Replacement, Knee
MH  - Cohort Studies
MH  - Female
MH  - *Health Status Indicators
MH  - Humans
MH  - Male
MH  - Middle Aged
MH  - Osteoarthritis, Knee/*surgery
MH  - Patient Satisfaction
MH  - Postoperative Period
MH  - Prospective Studies
MH  - Recovery of Function
EDAT- 2013/11/21 06:00
MHDA- 2014/12/15 06:00
CRDT- 2013/11/21 06:00
PHST- 2013/07/25 00:00 [received]
PHST- 2013/10/22 00:00 [accepted]
PHST- 2013/11/21 06:00 [entrez]
PHST- 2013/11/21 06:00 [pubmed]
PHST- 2014/12/15 06:00 [medline]
AID - 10.1007/s00167-013-2776-5 [doi]
PST - ppublish
SO  - Knee Surg Sports Traumatol Arthrosc. 2014 Aug;22(8):1933-9. doi: 
      10.1007/s00167-013-2776-5. Epub 2013 Nov 20.