Advanced

Meniscal body extrusion and cartilage coverage in middle-aged and elderly without radiographic knee osteoarthritis

Svensson, Fredrik LU ; Felson, David T.; Zhang, Fan LU ; Guermazi, Ali; Roemer, Frank W. LU ; Niu, Jingbo; Aliabadi, Piran; Neogi, Tuhina and Englund, Martin LU (2018) In European Radiology
Abstract

Objectives: To determine meniscal extrusion and cartilage coverage on magnetic resonance (MR) images and factors associated with these parameters in knees of middle-aged and elderly persons free from radiographic tibiofemoral osteoarthritis (OA). Methods: Seven hundred eighteen persons, free of radiographic tibiofemoral OA, aged 50–90 years from Framingham, MA, USA, were included. We measured meniscal extrusion on 1.5 T MRI of both knees to evaluate both medial and lateral meniscal body extrusion and cartilage coverage. We also determined meniscal morphology and structural integrity. The multivariable association with age, body mass index (BMI), and ipsilateral meniscal damage was also evaluated. Results: The mean meniscal body... (More)

Objectives: To determine meniscal extrusion and cartilage coverage on magnetic resonance (MR) images and factors associated with these parameters in knees of middle-aged and elderly persons free from radiographic tibiofemoral osteoarthritis (OA). Methods: Seven hundred eighteen persons, free of radiographic tibiofemoral OA, aged 50–90 years from Framingham, MA, USA, were included. We measured meniscal extrusion on 1.5 T MRI of both knees to evaluate both medial and lateral meniscal body extrusion and cartilage coverage. We also determined meniscal morphology and structural integrity. The multivariable association with age, body mass index (BMI), and ipsilateral meniscal damage was also evaluated. Results: The mean meniscal body extrusion medially was 2.7 mm and laterally 1.8 mm. The tibial cartilage coverage was about 30% of ipsilateral cartilage surface (both compartments). The presence of ipsilateral meniscal damage was associated with more extrusion in only the medial compartment, 1.0 mm in men and 0.6 mm in women, and less cartilage coverage proportion, -5.5% in men and -4.6% in women. Conclusions: Mean medial meniscal body extrusion in middle-aged or older persons without radiographic tibiofemoral OA approximates the commonly used cutoff (3 mm) to denote pathological extrusion. Medial meniscal damage is a factor associated with medial meniscal body extrusion and less cartilage coverage. Key Points: • Medial meniscal extrusion in middle-aged/older persons without OA is around 3 mm. • Lateral meniscal extrusion in middle-aged/older persons without OA is around 2 mm. • Meniscal damage is associated with medial meniscal extrusion and less cartilage coverage.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
Coverage, Knee, Magnetic resonance imaging, Meniscus, Osteoarthritis
in
European Radiology
publisher
Springer
external identifiers
  • scopus:85054594745
ISSN
0938-7994
DOI
10.1007/s00330-018-5741-3
language
English
LU publication?
yes
id
49d9f77b-d0af-427f-9eee-496d3e940a55
date added to LUP
2018-11-13 11:56:18
date last changed
2019-03-19 04:02:17
@article{49d9f77b-d0af-427f-9eee-496d3e940a55,
  abstract     = {<p>Objectives: To determine meniscal extrusion and cartilage coverage on magnetic resonance (MR) images and factors associated with these parameters in knees of middle-aged and elderly persons free from radiographic tibiofemoral osteoarthritis (OA). Methods: Seven hundred eighteen persons, free of radiographic tibiofemoral OA, aged 50–90 years from Framingham, MA, USA, were included. We measured meniscal extrusion on 1.5 T MRI of both knees to evaluate both medial and lateral meniscal body extrusion and cartilage coverage. We also determined meniscal morphology and structural integrity. The multivariable association with age, body mass index (BMI), and ipsilateral meniscal damage was also evaluated. Results: The mean meniscal body extrusion medially was 2.7 mm and laterally 1.8 mm. The tibial cartilage coverage was about 30% of ipsilateral cartilage surface (both compartments). The presence of ipsilateral meniscal damage was associated with more extrusion in only the medial compartment, 1.0 mm in men and 0.6 mm in women, and less cartilage coverage proportion, -5.5% in men and -4.6% in women. Conclusions: Mean medial meniscal body extrusion in middle-aged or older persons without radiographic tibiofemoral OA approximates the commonly used cutoff (3 mm) to denote pathological extrusion. Medial meniscal damage is a factor associated with medial meniscal body extrusion and less cartilage coverage. Key Points: • Medial meniscal extrusion in middle-aged/older persons without OA is around 3 mm. • Lateral meniscal extrusion in middle-aged/older persons without OA is around 2 mm. • Meniscal damage is associated with medial meniscal extrusion and less cartilage coverage.</p>},
  author       = {Svensson, Fredrik and Felson, David T. and Zhang, Fan and Guermazi, Ali and Roemer, Frank W. and Niu, Jingbo and Aliabadi, Piran and Neogi, Tuhina and Englund, Martin},
  issn         = {0938-7994},
  keyword      = {Coverage,Knee,Magnetic resonance imaging,Meniscus,Osteoarthritis},
  language     = {eng},
  month        = {10},
  publisher    = {Springer},
  series       = {European Radiology},
  title        = {Meniscal body extrusion and cartilage coverage in middle-aged and elderly without radiographic knee osteoarthritis},
  url          = {http://dx.doi.org/10.1007/s00330-018-5741-3},
  year         = {2018},
}