Ultimate goal of this study is to improve the diagnosis and treatment of back pain in general and pregnancy-related low back pain with signs of pelvic girdle pain in particular. More specifically, in the proposed study with ultrasound of the…
ID
Source
Brief title
Condition
- Joint disorders
Synonym
Research involving
Sponsors and support
Intervention
Outcome measures
Primary outcome
Transversus abdominis Quotient (TAQ). TAQ is calculated by dividing the
thickness of the transversus abdominis (TA) during forceful hip adduction by
the thickness of the TA during Active Straight Leg Raising (ASLR) (left and
right average).
In formula:
TAQ = thickness of TA during adduction / ((thickness of TA during ASLR left +
thickness of TA during ASLR right) / 2)
Secondary outcome
The thickness increase of the TA (in % of the thickness at rest) at 7 low
levels of hip adduction force (20-140 Newton).
Force increase at bilateral hipadduction in % after fastening a pelvic belt.
Background summary
Low back pain is common and a treatment aimed at the cause is not possible in
85% of the cases because the cause is unknown. The back pain in those 85% is
described in literature as "nonspecific." In theory recovery of non-specific
low back pain is delayed in a proportion of them because the contraction
pattern of the transversus abdominis (TA, the innermost of the three lateral
muscles in the abdominal wall) is inefficient. Identifying inefficient use of
TA can be determined with needle EMG. In diagnosis and treatment a need exists
for a simple method to evaluate the contraction pattern. Its importance is that
for patients with an incorrect contraction pattern of a specific therapy could
be developed. The results of studies in pregnant women with back pain are
encouraging. The proposed study will examine whether the findings also apply to
non-pregnant women.
Study objective
Ultimate goal of this study is to improve the diagnosis and treatment of back
pain in general and pregnancy-related low back pain with signs of pelvic girdle
pain in particular. More specifically, in the proposed study with ultrasound of
the abdominal muscles a contraction pattern of the TA will be sought with high
sensitivity and specificity to discriminate between patients with a normal and
an abnormal contraction pattern of the TA.
Study design
The study is a cross-sectional study. The diagnostic value of a test will be
checked in women with and without pelvic girdle pain (PGP).
Study burden and risks
1. For patients it means no burden at all. The investigation has already been
done.
2. For the controls no risk exists. It is a non-stressful physical examination
and a non-invasive ultrasound of the abdominal wall.
Vondellaan 35Ac
2332 AA Leiden
NL
Vondellaan 35Ac
2332 AA Leiden
NL
Listed location countries
Age
Inclusion criteria
1. Patients with posterior pelvic pain. The pain started during pregnancy or within 3 weeks after delivery and was ongoing since then. Last pregnancy was > 0.5 years previously. At least one positive test for PGP (ASLR and/or PPPP test).
2. Controls without pain anywhere among the pelvis and hips and knees during at least 3 months. Negative tests for PGP (ASLR and PPPP test). Last delivery was > 0.5 years previously.
Exclusion criteria
Abnormal anatomy of lumbar spine, pelvis, hips and abdominal wall (congenital or as a result of severe trauma or radical surgery). Severe neurologic or rheumatic disease. Obvious psychopathology. Inability to fill in forms without any help.
Design
Recruitment
Followed up by the following (possibly more current) registration
No registrations found.
Other (possibly less up-to-date) registrations in this register
No registrations found.
In other registers
| Register | ID |
|---|---|
| CCMO | NL32486.078.11 |