PMID- 26422525
OWN - NLM
STAT- MEDLINE
DCOM- 20160915
LR  - 20220408
IS  - 1532-6500 (Electronic)
IS  - 1058-2746 (Linking)
VI  - 25
IP  - 2
DP  - 2016 Feb
TI  - The minimal clinically important difference for function and strength in patients 
      undergoing reverse shoulder arthroplasty.
PG  - 262-8
LID - S1058-2746(15)00394-8 [pii]
LID - 10.1016/j.jse.2015.07.020 [doi]
AB  - HYPOTHESIS: Despite a statistically significant improvement in functional scores 
      after receiving a reverse shoulder arthroplasty (RSA) in a cuff-deficient 
      shoulder, not all patients perceive a minimal clinically important difference 
      (MCID) in every functional domain of the score. METHODS: This was a prospective 
      longitudinal study including 60 consecutive patients with a cuff-deficient 
      shoulder treated with a RSA. The Constant score was recorded before surgery and 
      at a 1-year follow-up assessment. At the 1-year follow-up, all patients also 
      filled out a 15-item anchor questionnaire to assess their perception of change in 
      their overall function, forward elevation, lateral rotation, internal rotation, 
      and strength to determine the MCID. RESULTS: The mean Constant score was 30.1 
      (standard deviation, 10.7) before surgery and was 58.4 (standard deviation, 16.2) 
      at the 1-year follow-up, with statistically significant improvement (P < .001). A 
      statistically significant improvement was found in the domains of forward 
      elevation (P < .001), lateral rotation (P < .001), and strength (P < .001) except 
      for internal rotation (P = .15). The MCID for overall function, forward 
      elevation, lateral rotation, internal rotation, and strength in the Constant 
      score increased by 8, 6, 2, 2, and 11.5 points, respectively; only 46.7%, 20%, 
      50%, 45.8%, and 33.3% of the patients, respectively, exceeded the MCID on each 
      domain after surgery. CONCLUSIONS: A statistically significant improvement in the 
      Constant score is expected after receiving an RSA in a cuff-deficient shoulder, 
      but a considerable number of patients do not reach the MCID in the function and 
      strength domains. A small improvement in rotation is perceived to be beneficial 
      by patients, whereas large improvements in forward elevation are required for the 
      improvement to be perceived to be beneficial.
CI  - Copyright (c) 2016 Journal of Shoulder and Elbow Surgery Board of Trustees. 
      Published by Elsevier Inc. All rights reserved.
FAU - Torrens, Carlos
AU  - Torrens C
AD  - Department of Orthopedics, Hospital del Mar-Parc de Salut Mar, Barcelona, Spain. 
      Electronic address: 86925@parcdesalutmar.cat.
FAU - Guirro, Pau
AU  - Guirro P
AD  - Department of Orthopedics, Hospital del Mar-Parc de Salut Mar, Barcelona, Spain.
FAU - Santana, Fernando
AU  - Santana F
AD  - Department of Orthopedics, Hospital del Mar-Parc de Salut Mar, Barcelona, Spain.
LA  - eng
PT  - Journal Article
DEP - 20150928
PL  - United States
TA  - J Shoulder Elbow Surg
JT  - Journal of shoulder and elbow surgery
JID - 9206499
SB  - IM
MH  - Aged
MH  - Arthroplasty, Replacement/*methods
MH  - Female
MH  - Humans
MH  - Longitudinal Studies
MH  - Male
MH  - Middle Aged
MH  - Muscle Strength
MH  - Muscle, Skeletal/physiopathology
MH  - Prospective Studies
MH  - Range of Motion, Articular/physiology
MH  - Rotation
MH  - Rotator Cuff/surgery
MH  - Shoulder Joint/*physiopathology/*surgery
MH  - Surveys and Questionnaires
MH  - Time Factors
MH  - Treatment Outcome
OTO - NOTNLM
OT  - Reverse shoulder arthroplasty
OT  - cuff-deficient shoulder
OT  - minimal clinically important changes
OT  - outcome
EDAT- 2015/10/01 06:00
MHDA- 2016/09/16 06:00
CRDT- 2015/10/01 06:00
PHST- 2015/02/15 00:00 [received]
PHST- 2015/06/23 00:00 [revised]
PHST- 2015/07/08 00:00 [accepted]
PHST- 2015/10/01 06:00 [entrez]
PHST- 2015/10/01 06:00 [pubmed]
PHST- 2016/09/16 06:00 [medline]
AID - S1058-2746(15)00394-8 [pii]
AID - 10.1016/j.jse.2015.07.020 [doi]
PST - ppublish
SO  - J Shoulder Elbow Surg. 2016 Feb;25(2):262-8. doi: 10.1016/j.jse.2015.07.020. Epub 
      2015 Sep 28.