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Change in knee structure and change in tibiofemoral joint space width: a five year longitudinal population–based study

Overview of attention for article published in BMC Musculoskeletal Disorders, January 2016
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Title
Change in knee structure and change in tibiofemoral joint space width: a five year longitudinal population–based study
Published in
BMC Musculoskeletal Disorders, January 2016
DOI 10.1186/s12891-016-0879-0
Pubmed ID
Authors

Joanna Hall, Laura L. Laslett, Johanne Martel-Pelletier, Jean-Pierre Pelletier, François Abram, Chang-Hai Ding, Flavia M. Cicuttini, Graeme Jones

Abstract

Change in knee cartilage volume is frequently used as a proxy for change in knee joint space width over time, but longitudinal data on these associations is limited. We aimed to determine whether change in knee cartilage volume, new or worsening meniscal extrusion (ME), meniscal tears and cartilage defects over 2.4 years correlated with change in joint space width (JSW) over 5 years in older community dwelling adults. Participants (n = 153) had their right knee imaged using MR imaging and x-ray at baseline, and after 2.4 years (MRI) and 5 years (x-ray). Cartilage volume, cartilage defects, meniscal extrusions and meniscal tears were assessed on sagittal T1-weighted fat-suppressed MRI. JSW was assessed using standard fixed semi-flexed view radiographs, and scored on those with adequate alignment. Participants were 51-79 (mean 62) years old; 48 % were female. Cartilage volume reduced over time (medial -134 ± 202 μL/year, lateral -106 ± 165 μL/year, p < 0.001), as did JSW (medial -0.05 ± 0.16 mm/year, lateral -0.12 ± 0.24 mm/year, p < 0.001). In multivariable analysis, the only consistent predictor of change in JSW was new or worsening ME (medial tibia R(2) 3.1 %, p = 0.031; medial femur R(2) 3.2 %, p = 0.024); change in cartilage volume correlated with change in JSW laterally (R(2) 4.8 %, p = 0.007) and was borderline medially (R(2) 2.2 %, p = 0.064); there was no association for meniscal tears or cartilage defects. The magnitude of these associations were similar albeit somewhat greater for ME in participants with radiographic OA (R(2) 6.2 %, p = 0.017). Change in ME and cartilage volume weakly predict change in JSW, but the vast majority of the variation remains unexplained. Since MRI examines cartilage directly while radiographs examine it indirectly, these results cast doubt on the validity of using JSW as a proxy measure of cartilage loss.

Twitter Demographics

The data shown below were collected from the profile of 1 tweeter who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 21 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 21 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 5 24%
Student > Master 3 14%
Other 2 10%
Student > Postgraduate 2 10%
Student > Bachelor 1 5%
Other 2 10%
Unknown 6 29%
Readers by discipline Count As %
Medicine and Dentistry 7 33%
Nursing and Health Professions 2 10%
Arts and Humanities 1 5%
Neuroscience 1 5%
Engineering 1 5%
Other 0 0%
Unknown 9 43%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 24 January 2016.
All research outputs
#5,249,037
of 7,017,937 outputs
Outputs from BMC Musculoskeletal Disorders
#1,512
of 1,912 outputs
Outputs of similar age
#218,388
of 317,598 outputs
Outputs of similar age from BMC Musculoskeletal Disorders
#57
of 79 outputs
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So far Altmetric has tracked 1,912 research outputs from this source. They receive a mean Attention Score of 4.6. This one is in the 8th percentile – i.e., 8% of its peers scored the same or lower than it.
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