association between spinal morning stiffness and lumbar disc degeneration: the rotterdam study....
TRANSCRIPT
The Spine Journal 13 (2013) 590–592
Journal Reports
The Spine Journal editors present abstracts from selected articles which may be of interest to TSJ readers.
MRI assessment of lumbar intervertebral disc degeneration with
lumbar degenerative disease using the pfirrmann grading systems.
Yu LP, Qian WW, Yin GY, Ren YX, Hu ZY. PLoS One
2012;7(12):e48074
BACKGROUND: To evaluate by MRI intervertebral disc degeneration in
patients with lumbar degenerative disease using the Pfirrmann grading sys-
tem and to determine whether Modic changes correlated with the Pfirr-
mann grades and modified Pfirrmann grades of disc degeneration.
METHODS: The clinical data of 108 surgical patients with lumbar degen-
erative disease were reviewed and their preoperative MR images were an-
alyzed. Disc degeneration was evaluated using the Pfirrmann grading
system. Patients were followed up and low back pain was evaluated using
the visual analog scale (VAS) and the effect of back pain on the daily qual-
ity of life was assessed using Oswestry disability index (ODI).
RESULTS: Forty-four cases had normal anatomical appearance (Modic
type 0) and their Pfirrmann grades were 3.7760.480 and their modified
Pfirrmann grades were of 5.8161.006. Twenty-seven cases had Modic type
I changes and their Pfirrmann grades were 4.7960.557 and their modified
Pfirrmann grades were 7.0060.832. Thirty-six cases exhibited Modic type
II changes and their Pfirrmann grades and modified Pfirrmann grades were
4.1160.398 and 6.6460.867, respectively. One case had Modic type III
changes. Kruskal-Wallis test revealed significant difference in modified
Pfirrmann grade among Modic type 0, I and II changes (p!.01) but no sig-
nificant difference between Modic type I and II changes (pO.05). Binary re-
gression analysis showed that Modic changes correlated most strongly with
disc degeneration. Follow up studies indicated that the VAS and ODI scores
were markedly improved postoperatively. However, no differencewas noted
in VAS and ODI scores among patients with different Modic types.
CONCLUSION:Modic changes correlate with the Pfirrmann andmodified
Pfirrmann grades of disc degeneration in lumbar degenerative disease. There
is no significant correlation between Modic types and surgical outcomes.
PMID: 23284612 [PubMed - in process. Available at: http://www.ncbi.
nlm.nih.gov/pubmed/23284612]
Reprinted from: Yu LP, Qian WW, Yin GY, Ren YX, Hu ZY. MRI assess-
ment of lumbar intervertebral disc degeneration with lumbar degenerative
disease using the pfirrmann grading systems. PLoS One 2012;7(12):e48074.
http://dx.doi.org/10.1016/j.spinee.2013.03.031
Intervertebral disc cell- and hydrogel-supported and spontaneous
intervertebral disc repair in nucleotomized sheep. Benz K, Stippich
C, Fischer L, et al. Eur Spine J 2012;21(9):1758-68. Epub 2012 Jul 29
PURPOSE: Regenerative repair is a promising new approach in treating
damaged intervertebral discs. An experimental scheme was established
for autologous and/or allogenic repair after massive disc injury.
METHODS: Disc healing was promoted in 11 animals by injecting in vi-
tro expanded autologous/homologous disc cells 2 weeks after stab injury of
lumbar discs L1-2. The following control discs were used in our sheep
injury model: L2-3, vehicle only; L3-4, injury only; L4-5, undamaged;
and lumbar discs from four non-experimental animals. Disc cells were sus-
pended in a biologically supportive albumin/hyaluronan two-component
hydrogel solution that polymerizes when inserted in order to anchor cells
at the injection site. The parameters studied were MRI, DNA, glycosami-
noglycan, collagen content, histology, immunohistology for collagens type
I, II and aggrecan, and mRNA expression of GAPDH, b-actin, collagen
type I, II, X, aggrecan, lubricin, and IL-1b.
RESULTS: All parameters demonstrated almost complete healing of the
injured discs after 6 months, when compared with data from both the en-
dogenous non-injured controls as well as from the healthy animals.
CONCLUSION: Sheep experience spontaneous recovery from disc in-
jury. The process of endogenous repair can be enhanced by means of
hydrogel-supported cells.
PMID: 22842955 [PubMed - in process. Available at: http://www.ncbi.
nlm.nih.gov/pubmed/22842955]
Reprinted with permission from: Benz K, Stippich C, Fischer L, et al.
Intervertebral disc cell- and hydrogel-supported and spontaneous interver-
tebral disc repair in nucleotomized sheep. Eur Spine J 2012;21(9):1758-
68. Epub 2012 Jul 29. Available at: http://link.springer.com/article/
10.1007%2Fs00586-012-2443-4
http://dx.doi.org/10.1016/j.spinee.2013.03.032
Association between spinal morning stiffness and lumbar disc
degeneration: the Rotterdam Study. Scheele J, de Schepper EI, van
Meurs JB, et al. Osteoarthritis Cartilage 2012;20(9):982-7. Epub
2012 Jun 12
OBJECTIVE: To explore the associations between spinal morning stiff-
ness and lumbar disc degeneration (LDD).
DESIGN: Data from a cross-sectional general population-based study
(Rotterdam Study-I) were used. Intervertebral disc spaces and osteophytes
of people aged$55 years were scored on lumbar lateral radiographs (L1-2
through L5-S1 was scored). Logistic regression analysis was used to ex-
plore associations between spinal morning stiffness and two definitions
of LDD (ie, ‘narrowing’ and ‘osteophytes’). Spinal morning stiffness com-
bined with low back pain and its association with LDD was also analyzed.
Similar analyses were performed for knee and hip pain, morning stiffness
in the legs, and radiographic knee and hip osteoarthritis (OA) in order to
compare these associations with those of LDD. All analyses were adjusted
for age, gender, and body mass index (BMI).
RESULTS: Lumbar lateral radiographs were scored for 2,819 participants.
Both definitions of LDD were associated with spinal morning stiffness: ad-
justed odds ratio (aOR) 1.3; 95% confidence interval (CI): 1.1-1.6 for ‘os-
teophytes’ and aOR 1.8; 95% CI: 1.4-2.2 for ‘narrowing’. Both the odds
ratios increased when spinal morning stiffness was combined with low
back pain: aOR 1.5; 95% CI: 1.1-2.0 for ‘osteophytes’ and aOR 2.5;
95% CI: 1.9-3.4 for ‘narrowing’. When morning stiffness in the legs was
combined with knee or hip pain, the associations with radiographic knee
591Journal Reports / The Spine Journal 13 (2013) 590–592
or hip OAwere: aOR 3.0; 95% CI: 2.1-4.1 for knee OA and aOR 3.1; 95%
CI: 1.9-5.0 for hip OA.
CONCLUSIONS: Reported spinal morning stiffness is associated with
LDD. The associations increased when we combined spinal morning stiff-
ness with low back pain. The magnitude of the association for the defini-
tion ‘narrowing’ is similar to the association between morning stiffness in
the legs and knee or hip OA.
PMID: 22698441 [PubMed - indexed for MEDLINE. Available at: http://
www.ncbi.nlm.nih.gov/pubmed/22698441]
Reprinted from: Scheele J, de Schepper EI, van Meurs JB, et al. Association
between spinal morning stiffness and lumbar disc degeneration: the Rotter-
dam Study. Osteoarthritis Cartilage 2012;20(9):982-7. Epub 2012 Jun 12,
with permission from the Osteoarthritis Research Society International.
http://dx.doi.org/10.1016/j.spinee.2013.03.033
Intervertebral disc degeneration in the dog. Part 2:
Chondrodystrophic and non-chondrodystrophic breeds. Smolders
LA, Bergknut N, Grinwis GC, et al. Vet J 2012 pii: S1090-0233(12)
00433-9. [Epub ahead of print]
Dogs can be grouped into two distinct types of breed based on the predis-
position to chondrodystrophy, namely, non-chondrodystrophic (NCD) and
chondrodystrophic (CD). In addition to a different process of endochondral
ossification, NCD and CD breeds have different characteristics of intraver-
tebral disc (IVD) degeneration and IVD degenerative diseases. The anat-
omy, physiology, histopathology, and biochemical and biomechanical
characteristics of the healthy and degenerated IVD are discussed in the first
part of this two-part review. This second part describes the similarities and
differences in the histopathological and biochemical characteristics of IVD
degeneration in CD and NCD canine breeds and discusses relevant aetio-
logical factors of IVD degeneration.
PMID: 23154070 [PubMed - as supplied by publisher. Available at: http://
www.ncbi.nlm.nih.gov/pubmed/23154070]
Reprinted from: Smolders LA, Bergknut N, Grinwis GC, et al. Interverte-
bral disc degeneration in the dog. Part 2: Chondrodystrophic and non-
chondrodystrophic breeds. Vet J 2012 pii: S1090-0233(12)00433-9.[Epub
ahead of print], with permission from Elsevier.
http://dx.doi.org/10.1016/j.spinee.2013.03.034
Experimental pelvic pain facilitates pain provocation tests and
causes regional hyperalgesia. Palsson TS, Graven-Nielsen T. Pain
2012 Aug 22. [Epub ahead of print]
The extra-articular sacroiliac joint (SIJ) structure is a potential source for
low back and pelvic pain. This study hypothesised that experimental pain
induced in a superficial pelvic ligament causes (1) hyperalgesia to pres-
sure, (2) distinct pain referral, and (3) an increased frequency of positive
pain provocation tests of the SIJ complex. Thirty healthy subjects (15 fe-
males) participated in this study designed as a randomised crossover trial.
Pain was induced in the long posterior sacroiliac ligament by injection of
hypertonic saline, with the contralateral ligament injected with isotonic sa-
line as control. Pain intensity was assessed on an electronic visual ana-
logue scale (VAS). Pressure pain thresholds (PPTs) and pain provocation
tests were assessed on 3 occasions: at baseline, after injection, and when
pain had subsided. PPT sites were located bilaterally at the injection site,
lateral to spinous processes of S2 and L5, and at the gluteus medius and
gastrocnemius muscles. Hypertonic saline caused significantly higher
VAS scores and more extended pain referral than isotonic saline
(p!.001). PPTs at the injection site and lateral to S2 were significantly re-
duced after hypertonic saline compared with baseline and isotonic saline
(p!.002). Significantly more subjects had positive pain provocation tests
after hypertonic (67% of subjects) compared with isotonic saline (20%;
p!.001). These data demonstrate that the extra-articular SIJ structure ac-
commodates nociceptors that are capable of inducing pain referral and re-
gional hyperalgesia sensitive to manual pain provocation tests similar to
what previously have been found in pelvic girdle pain patients.
PMID: 22921262 [PubMed - in process. Available at: http://www.ncbi.
nlm.nih.gov/pubmed/22921262]
Reprinted from: Palsson TS, Graven-Nielsen T. Experimental pelvic pain
facilitates pain provocation tests and causes regional hyperalgesia. Pain
2012 Aug 22. [Epub ahead of print]. This abstract has been reproduced
with permission of the International Association for the Study of Pain�(IASP�). The abstract may not be reproduced for any other purpose with-
out permission.
http://dx.doi.org/10.1016/j.spinee.2013.03.035
Factors affecting shoulder-pelvic integration during axial trunk
rotation in subjects with recurrent low back pain. Park WH, Kim
YH, Lee TR, Sung PS. Eur Spine J 2012;21(7):1316-23. Epub 2012
Mar 29
INTRODUCTION: Shoulder-pelvic integration could play a central role
in the control of dynamic posture and movement. However, kinematic co-
ordination during axial trunk rotation has not been carefully investigated in
subjects with recurrent low back pain (LBP). The purpose of this study was
to compare the maximum rotational angles of the shoulders and pelvis in
the transverse plane between subjects with and without recurrent LBP.
MATERIALS AND METHODS: A total of 38 age-matched subjects (19
control subjects: 69.0065.75 years old and 19 subjects with LBP:
68.7965.40 years old) participated in the study. The axial trunk rotation
test was conducted in the upright position with bilateral hips and knees
fully extended and both feet shoulder width apart.
RESULTS: The results of this study indicated that there was a difference
in pelvic girdle rotation between groups (100.79626.46 in the control
group, 82.12623.16 in the LBP group; t52.31, p5.02); however, there
was no difference for the shoulder girdle (177.63636.98 in the control
group, 156.42630.09 in the LBP group; t51.91, p5.06). There were inter-
actions with age (F59.27, p5.004) and BMI (F57.50, p5.01) with the ro-
tational angles of the shoulder and pelvis.
CONCLUSION: These results indicated a different pattern of trunk rota-
tion movement with the age and BMI serving as important factors to con-
sider for recurrent LBP. The results of our study also indicated a different
pattern of shoulder and pelvic coordination with age and gender. Clinicians
need to consider the consequences of limited shoulder-pelvic rotational
angles, especially limited rotational angle on the pelvis during trunk axial
rotation. Further studies are required to determine the causes of the under-
lying problems for clinical decision-making and altered shoulder-pelvic
rotation in subjects with recurrent LBP.
PMID: 22456800 [PubMed - indexed for MEDLINE. Available at: http://
www.ncbi.nlm.nih.gov/pubmed/22456800]
Reprinted with permission from: Park WH, Kim YH, Lee TR, Sung PS.
Factors affecting shoulder-pelvic integration during axial trunk rotation
in subjects with recurrent low back pain. Eur Spine J 2012;21(7):1316-
23. Epub 2012 Mar 29. Available at: http://link.springer.com/article/
10.1007%2Fs00586-012-2280-5.
http://dx.doi.org/10.1016/j.spinee.2013.03.036