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Cervical spine magnetic resonance imaging in primary care consulters with shoulder pain: a case–control study
  1. Anindita Paul1,
  2. Martyn Lewis2,
  3. Jackie Saklatvala1,
  4. Iain McCall1,3,
  5. Mike Shadforth1,
  6. Peter Croft2,
  7. Elaine Hay1,2
  1. 1
    Staffordshire Rheumatology Centre, The Haywood, Stoke on Trent, Staffordshire ST6 7AG, UK
  2. 2
    Primary Care Musculoskeletal Research Centre, Primary Care Sciences, Keele University, Stoke-on-Trent, Staffordshire ST5 5BG, UK
  3. 3
    Robert Jones and Agnes Hunt Hospital, Oswestry, Shropshire, UK
  1. Professor Elaine Hay, Primary Care Musculoskeletal Research Centre, Primary Care Sciences, Keele University, Stoke-on-Trent, Staffordshire ST5 5BG, UK; e.m.hay{at}keele.ac.uk

Abstract

Objectives: To investigate the association between shoulder region pain presenting in primary care and cervical spine magnetic resonance imaging (MRI) abnormalities.

Methods: A matched case–control study of 48 pairs of participants. Patients had presented to primary care with a new episode of shoulder pain. Controls had no history of pain in the shoulder region and were individually matched with cases by age, gender and referring clinician. All participants underwent a structured clinical assessment and cervical spine MRI. Scans were scored by experienced musculoskeletal radiologists blinded to case–control status.

Results: Median age of participants was 51 years (range 19–79) and 21 (44%) were female. “Neck pain in the past week” was reported by 25 (52%) cases and seven (15%) controls (odds ratio, OR, 10.0; 95% confidence interval, CI, 2.4, 88.2). Cervical spine MRI from C3/4 to C6/7 revealed: 18 (38%) of both cases and controls had disc height loss ⩾50% at any level; 10 (21%) cases and eight (17%) controls had disc disease with neural compromise; 11 (23%) cases and 16 (33%) controls had foraminal stenosis; nine (19%) of both cases and controls had canal narrowing. At least one of the above findings was present in 24 (50%) cases and 23 (48%) controls (OR 1.1; 95% CI 0.4, 3.4).

Conclusions: Cervical spine MRI abnormalities were similar in both cases and controls, despite significantly more self-reported neck pain in cases with shoulder pain. Other possible mechanisms, such as muscular strain or postural problems, may explain the observed clinical association between shoulder region pain and neck associated symptoms.

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Footnotes

  • Competing interests: None.

  • Abbreviations:
    MRI
    magnetic resonance imaging
    OR
    odds ratio
    VAS
    visual analogue scale
    VAS-OD
    visual analogue scale—overall difficulty
    VAS-OP
    visual analogue scale—overall pain

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