PMID- 31109846
OWN - NLM
STAT- MEDLINE
DCOM- 20191113
LR  - 20191113
IS  - 1873-5800 (Electronic)
IS  - 0968-0160 (Linking)
VI  - 26
IP  - 4
DP  - 2019 Aug
TI  - Meaningful changes in the Short Form 12 physical and mental summary scores after 
      total knee arthroplasty.
PG  - 861-868
LID - S0968-0160(19)30090-0 [pii]
LID - 10.1016/j.knee.2019.04.018 [doi]
AB  - BACKGROUND: The aim of this study was to identify minimal clinically important 
      difference (MCID), minimal important change (MIC) and minimal detectable change 
      (MDC) for the Short Form (SF-) 12 physical and mental component summary (PCS, 
      MCS) scores after total knee arthroplasty (TKA) using an anchor based 
      methodology. METHODS: During a 10-year period, 2589 TKA were performed. SF-12 PCS 
      and MCS scores were recorded preoperatively and at one year postoperatively. At 
      one year, patients were asked "How much did the knee replacement surgery improve 
      the quality of your life?" Their response was recorded as: a great improvement, 
      moderate improvement, little improvement, no improvement at all, or the quality 
      of my life is worse. Patients recording a little (n = 211) and no (n = 115) were 
      used to calculate the MCID and the MIC. The MDC90 was calculated using 
      distribution based methods for the whole cohort. RESULTS: The MCID was 1.8 
      (p = 0.04) for the PCS and 1.5 (p = 0.33) for the MCS score. The MIC was 2.7 
      (p = 0.04) for the PCS and -1.4 (p = 0.17) for the MCS score. The MDC90 was 8.9 
      for the PCS and 13.8 for the MCS score. CONCLUSION: The MCID for the PCS can be 
      used to compare the outcomes between groups, and the MIC can be used to ensure 
      that a clinical difference has been observed for a cohort of patients. The values 
      for the MDC90 can be used to assess whether or not an individual patient has 
      experienced a change.
CI  - Copyright (c) 2019 Elsevier B.V. All rights reserved.
FAU - Clement, N D
AU  - Clement ND
AD  - Department of Orthopaedics, Freeman Hospital, Freeman Road, High Heaton, 
      Newcastle upon Tyne, NE7 7DD, UK. Electronic address: nickclement@doctors.org.uk.
FAU - Weir, D
AU  - Weir D
AD  - Department of Orthopaedics, Freeman Hospital, Freeman Road, High Heaton, 
      Newcastle upon Tyne, NE7 7DD, UK.
FAU - Holland, J
AU  - Holland J
AD  - Department of Orthopaedics, Freeman Hospital, Freeman Road, High Heaton, 
      Newcastle upon Tyne, NE7 7DD, UK.
FAU - Gerrand, C
AU  - Gerrand C
AD  - Department of Orthopaedics, Freeman Hospital, Freeman Road, High Heaton, 
      Newcastle upon Tyne, NE7 7DD, UK.
FAU - Deehan, D J
AU  - Deehan DJ
AD  - Department of Orthopaedics, Freeman Hospital, Freeman Road, High Heaton, 
      Newcastle upon Tyne, NE7 7DD, UK.
LA  - eng
PT  - Journal Article
DEP - 20190517
PL  - Netherlands
TA  - Knee
JT  - The Knee
JID - 9430798
SB  - IM
MH  - Aged
MH  - *Arthroplasty, Replacement, Knee
MH  - Female
MH  - Humans
MH  - Male
MH  - Osteoarthritis, Knee/*surgery
MH  - *Patient Reported Outcome Measures
MH  - Postoperative Period
MH  - *Quality of Life
MH  - Retrospective Studies
OTO - NOTNLM
OT  - Arthroplasty
OT  - Knee
OT  - Meaningful changes
OT  - Minimal clinically important difference
OT  - Outcome
OT  - SF-12
EDAT- 2019/05/22 06:00
MHDA- 2019/11/14 06:00
CRDT- 2019/05/22 06:00
PHST- 2017/12/20 00:00 [received]
PHST- 2019/01/16 00:00 [revised]
PHST- 2019/04/30 00:00 [accepted]
PHST- 2019/05/22 06:00 [pubmed]
PHST- 2019/11/14 06:00 [medline]
PHST- 2019/05/22 06:00 [entrez]
AID - S0968-0160(19)30090-0 [pii]
AID - 10.1016/j.knee.2019.04.018 [doi]
PST - ppublish
SO  - Knee. 2019 Aug;26(4):861-868. doi: 10.1016/j.knee.2019.04.018. Epub 2019 May 17.