On the assessment of nerve involvement and of dysfunction in patients with spinal pain
Author: Bertilson, Bo C
Date: 2009-02-13
Location: Sal 221, Alfred Nobels Allé 12, Karolinska Institutet, Huddinge
Time: 13.00
Department: Institutionen för neurobiologi, vårdvetenskap och samhälle / Department of Neurobiology, Care Sciences and Society
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thesis.pdf (5.796Mb)
Abstract
Nerve involvement originating in the spine can cause pain and/or organ
dysfunction. Reliable and valid assessment of nerve involvement is a
prime diagnostic task as it may require other than symptomatic treatment.
The aim of this thesis was to analyse the reliability of, and association
between, some diagnostic methods and classifications used in the
assessment of patients with spinal pain. In particular the reliability
of, and association between, methods used to detect nerve involvement
originating in the spine.
Material. Articles I and II are based on study A where 100 consecutive
primary health care patients with neck- and/or shoulder discomfort were
assessed by 2 independent examiners using a simplified pain drawing,
patient history and a physical exam with 66 clinical tests focused on
neurology. Article III is based on study B on 50 consecutive outpatients
with low back pain (LBP), assessed by 2 independent examiners using
patient history and a physical exam with 30 clinical tests. Article IV is
based on study C on 61 consecutive patients referred to magnetic
resonance imaging (MRI) of the lumbar spine where we used the simplified
pain drawing, patient history and a physical exam focused on neurology to
detect nerve involvement originating in the spine.
Results. In study A inter-examiner reliability was less than acceptable
for many tests. Only a bimanual sensibility test with spurs reached K >
0.6 indicating good reliability and no bias. With known history,
prevalence of positive findings increased but not reliability. Four out
of five patients had, in the region of discomfort, 2 or more clinical
test findings indicating nerve involvement originating in the spine.
Interexaminer reliability based on a first impression assessment of the
pain drawing reached 88% overall agreement and a sensitivity of 90 % to
the final assessment. Two thirds of the patients added symptoms to the
pain drawing during history session.
In study B excellent inter-examiner reliability (K > 0.8) was found for
using Kirkaldy-Willis Classification of LBP. Radiological findings had no
impact. Good inter-examiner reliability was found for straight leg raise,
movement range and sensibility testing with spurs. In study C we found
that MRI visible nerve involvement significantly underestimated the high
percentage of nerve involvement detected in the physical exam and in the
pain drawing.
Conclusions. Nerve involvement can be detected reliably, simply and
quickly with a bimanual sensibility test with spurs and a pain drawing.
MRI visible nerve involvement in the lumbar spine underestimates presence
of nerve involvement detected in a physical exam and a pain drawing.
Nerve involvement in both the cervical and lumbar spine may be a greatly
underestimated cause of pain and/or organ dysfunction. This may explain
part of today s poor treatment outcome of spinal pain and should
encourage further studies on diagnostics and treatment of nerve
involvement originating in the spine.
List of papers:
I. Bertilson BC, Grunnesjö M, Strender LE (2003). "Reliability of clinical tests in the assessment of patients with neck/shoulder problems-impact of history." Spine 28(19): 2222-31
Pubmed
II. Bertilson B, Grunnesjö M, Johansson SE, Strender LE (2007). "Pain drawing in the assessment of neurogenic pain and dysfunction in the neck/shoulder region: inter-examiner reliability and concordance with clinical examination." Pain Med 8(2): 134-46
Pubmed
III. Bertilson BC, Bring J, Sjöblom A, Sundell K, Strender LE (2006). "Inter-examiner reliability in the assessment of low back pain (LBP) using the Kirkaldy-Willis classification (KWC)." Eur Spine J 15(11): 1695-703. Epub 2006 Jan 25
Pubmed
IV. Bertilson BC, Brosjö E, Billing H, Strender LE (2009). "Assessment of nerve involvement in the lumbar spine: association between magnetic resonance imaging, physical examination and pain drawing findings." (Submitted)
I. Bertilson BC, Grunnesjö M, Strender LE (2003). "Reliability of clinical tests in the assessment of patients with neck/shoulder problems-impact of history." Spine 28(19): 2222-31
Pubmed
II. Bertilson B, Grunnesjö M, Johansson SE, Strender LE (2007). "Pain drawing in the assessment of neurogenic pain and dysfunction in the neck/shoulder region: inter-examiner reliability and concordance with clinical examination." Pain Med 8(2): 134-46
Pubmed
III. Bertilson BC, Bring J, Sjöblom A, Sundell K, Strender LE (2006). "Inter-examiner reliability in the assessment of low back pain (LBP) using the Kirkaldy-Willis classification (KWC)." Eur Spine J 15(11): 1695-703. Epub 2006 Jan 25
Pubmed
IV. Bertilson BC, Brosjö E, Billing H, Strender LE (2009). "Assessment of nerve involvement in the lumbar spine: association between magnetic resonance imaging, physical examination and pain drawing findings." (Submitted)
Issue date: 2009-01-23
Rights:
Publication year: 2009
ISBN: 978-91-7409-331-5
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