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Effect of mechanical stress on magnetic resonance imaging of the sacroiliac joints : assessment of military recruits by magnetic resonance imaging study

Gaëlle Varkas (UGent) , Manouk de Hooge (UGent) , Thomas Renson (UGent) , Sophie De Mits (UGent) , Philippe Carron (UGent) , Peggy Jacques (UGent) , Muriel Moris, Geert Souverijns, Lennart Jans (UGent) , Dirk Elewaut (UGent) , et al.
(2018) RHEUMATOLOGY. 57(3). p.508-513
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Abstract
To assess the baseline condition of the SI joints (SIJs) in healthy individuals without symptoms of back pain and to study the effect of mechanical stress caused by intense physical training on MRI of the SIJs. Twenty-two military recruits underwent an MRI of the SIJs before and after 6 weeks of intense standardized physical training. Bone marrow oedema and structural lesions were scored based on the Spondyloarthritis Research Consortium of Canada (SPARCC) method, by three trained readers blinded for time sequence and clinical findings. Additionally, fulfilment of the Assessment of SpondyloArthritis international Society (ASAS) definition of a positive MRI was evaluated. At baseline, 9/22 recruits (40.9%) already presented a SPARCC score a (c) 3/41; this number increased to 11/22 (50.0%) at week 6 (P = 0.625). In these patients, the mean (SD) SPARCC score was 2.4 (0.4) at baseline, compared to 3.7 (1.3) at week 6. Overall, the mean (SD) change in SPARCC score over time in all 22 patients was 0.9 (0.6) (P = 0.109). A positive MRI according to the ASAS definition was present in 5/22 recruits (22.7%) at baseline, which increased to 8/22 (36.4%) at follow-up (P = 0.375). Structural lesions were present in 6/22 subjects (27.3%), both at baseline and after 6 weeks of training. A substantial proportion of healthy active individuals without any symptoms of back pain displayed bone marrow oedema lesions on MRI at baseline. However, MRI lesions did not increase significantly after 6 weeks of intensive physical training. Our study underscores the necessity to interpret MRI findings of the SIJs in the appropriate clinical context, even in a young active population.
Keywords
BONE-MARROW EDEMA, PLACEBO-CONTROLLED TRIAL, AXIAL SPONDYLOARTHRITIS, ANKYLOSING-SPONDYLITIS, BACK-PAIN, MARATHON RUNNERS, OSTEITIS PUBIS, INFLAMMATION, COHORT, SPINE

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MLA
Varkas, Gaëlle, et al. “Effect of Mechanical Stress on Magnetic Resonance Imaging of the Sacroiliac Joints : Assessment of Military Recruits by Magnetic Resonance Imaging Study.” RHEUMATOLOGY, vol. 57, no. 3, 2018, pp. 508–13, doi:10.1093/rheumatology/kex491.
APA
Varkas, G., de Hooge, M., Renson, T., De Mits, S., Carron, P., Jacques, P., … Van den Bosch, F. (2018). Effect of mechanical stress on magnetic resonance imaging of the sacroiliac joints : assessment of military recruits by magnetic resonance imaging study. RHEUMATOLOGY, 57(3), 508–513. https://doi.org/10.1093/rheumatology/kex491
Chicago author-date
Varkas, Gaëlle, Manouk de Hooge, Thomas Renson, Sophie De Mits, Philippe Carron, Peggy Jacques, Muriel Moris, et al. 2018. “Effect of Mechanical Stress on Magnetic Resonance Imaging of the Sacroiliac Joints : Assessment of Military Recruits by Magnetic Resonance Imaging Study.” RHEUMATOLOGY 57 (3): 508–13. https://doi.org/10.1093/rheumatology/kex491.
Chicago author-date (all authors)
Varkas, Gaëlle, Manouk de Hooge, Thomas Renson, Sophie De Mits, Philippe Carron, Peggy Jacques, Muriel Moris, Geert Souverijns, Lennart Jans, Dirk Elewaut, and Filip Van den Bosch. 2018. “Effect of Mechanical Stress on Magnetic Resonance Imaging of the Sacroiliac Joints : Assessment of Military Recruits by Magnetic Resonance Imaging Study.” RHEUMATOLOGY 57 (3): 508–513. doi:10.1093/rheumatology/kex491.
Vancouver
1.
Varkas G, de Hooge M, Renson T, De Mits S, Carron P, Jacques P, et al. Effect of mechanical stress on magnetic resonance imaging of the sacroiliac joints : assessment of military recruits by magnetic resonance imaging study. RHEUMATOLOGY. 2018;57(3):508–13.
IEEE
[1]
G. Varkas et al., “Effect of mechanical stress on magnetic resonance imaging of the sacroiliac joints : assessment of military recruits by magnetic resonance imaging study,” RHEUMATOLOGY, vol. 57, no. 3, pp. 508–513, 2018.
@article{8558252,
  abstract     = {To assess the baseline condition of the SI joints (SIJs) in healthy individuals without symptoms of back pain and to study the effect of mechanical stress caused by intense physical training on MRI of the SIJs. Twenty-two military recruits underwent an MRI of the SIJs before and after 6 weeks of intense standardized physical training. Bone marrow oedema and structural lesions were scored based on the Spondyloarthritis Research Consortium of Canada (SPARCC) method, by three trained readers blinded for time sequence and clinical findings. Additionally, fulfilment of the Assessment of SpondyloArthritis international Society (ASAS) definition of a positive MRI was evaluated. At baseline, 9/22 recruits (40.9%) already presented a SPARCC score a (c) 3/41; this number increased to 11/22 (50.0%) at week 6 (P = 0.625). In these patients, the mean (SD) SPARCC score was 2.4 (0.4) at baseline, compared to 3.7 (1.3) at week 6. Overall, the mean (SD) change in SPARCC score over time in all 22 patients was 0.9 (0.6) (P = 0.109). A positive MRI according to the ASAS definition was present in 5/22 recruits (22.7%) at baseline, which increased to 8/22 (36.4%) at follow-up (P = 0.375). Structural lesions were present in 6/22 subjects (27.3%), both at baseline and after 6 weeks of training. A substantial proportion of healthy active individuals without any symptoms of back pain displayed bone marrow oedema lesions on MRI at baseline. However, MRI lesions did not increase significantly after 6 weeks of intensive physical training. Our study underscores the necessity to interpret MRI findings of the SIJs in the appropriate clinical context, even in a young active population.},
  author       = {Varkas, Gaëlle and de Hooge, Manouk and Renson, Thomas and De Mits, Sophie and Carron, Philippe and Jacques, Peggy and Moris, Muriel and Souverijns, Geert and Jans, Lennart and Elewaut, Dirk and Van den Bosch, Filip},
  issn         = {1462-0324},
  journal      = {RHEUMATOLOGY},
  keywords     = {BONE-MARROW EDEMA,PLACEBO-CONTROLLED TRIAL,AXIAL SPONDYLOARTHRITIS,ANKYLOSING-SPONDYLITIS,BACK-PAIN,MARATHON RUNNERS,OSTEITIS PUBIS,INFLAMMATION,COHORT,SPINE},
  language     = {eng},
  number       = {3},
  pages        = {508--513},
  title        = {Effect of mechanical stress on magnetic resonance imaging of the sacroiliac joints : assessment of military recruits by magnetic resonance imaging study},
  url          = {http://dx.doi.org/10.1093/rheumatology/kex491},
  volume       = {57},
  year         = {2018},
}

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