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Predicting persistent pregnancy-related low back pain
Linköping University, Department of Medicine and Health Sciences, Physiotherapy. Linköping University, Faculty of Health Sciences.
Linköping University, Department of Medicine and Health Sciences, Physiotherapy. Linköping University, Faculty of Health Sciences. (Landstinget i Östergötland; Centre for Public Health Sciences; Centre for Public Health Sciences; Folkhälsovetenskapligt centrum; Folkhälsovetenskapligt centrum)
2008 (English)In: Spine, ISSN 0362-2436, E-ISSN 1528-1159, Vol. 33, no 12, E386-E393 p.Article in journal (Refereed) Published
Abstract [en]

Objective: To examine the course of subtypes of low back pain (LBP) experienced [no LBP, pelvic girdle pain (PGP), lumbar pain, and combined PGP and lumbar pain (combined pain)] during gestational weeks 12 to 18 and 3 months postpartum, and to explore potential predictors for persistent PGP or combined pain postpartum.

Summary of background data: LBP is more prevalent in pregnant women (25%) than in the general population (6.3%). Persistent LBP postpartum (16%) is usually studied as a single entity. However, only one subgroup of LBP, pelvic girdle pain (PGP), is associated with pregnancy. Several studies have suggested an association between muscular dysfunction and pregnancy-related LBP, however, muscle dysfunction has not been evaluated as potential predictor of persistent LBP postpartum. Possible subgroup differences in the course and predictors of persistent LBP are unknown.

Methods: Pregnant women (n = 308) were classified into LBP subgroups by mechanical assessment of the lumbar spine, pelvic pain provocation tests, standard history, and pain drawings. Trunk muscle endurance, hip muscle strength (dynamometer) and gait speed were evaluated. Multiple logistic regression was used to identify predictors from self-reports and clinical examination.

Results: Women with combined pain recovered to a lower degree 33% (17 of 51) than those with PGP 66% (56 of 85) or lumbar pain 72% (21 of 29). Predictors for having persistent PGP or combined pain after delivery were low endurance of back flexors, older age, combined pain in early pregnancy and work dissatisfaction (explained variance 30%).

Conclusion: Women with combined pain were identified to be a target group since they had the most unfavorable course and since the classification of combined pain was found to be a predictor for persistent pain postpartum. Identification of women at risk for persistent pain postpartum seems possible in early pregnancy and requires physical examination and self-reports. Pregnancy had low impact on the course of lumbar pain.

Place, publisher, year, edition, pages
2008. Vol. 33, no 12, E386-E393 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-12993DOI: 10.1097/BRS.0b013e31817331a4OAI: oai:DiVA.org:liu-12993DiVA: diva2:17601
Available from: 2008-03-06 Created: 2008-03-06 Last updated: 2017-12-13
In thesis
1. Pelvic Girdle Pain and Lumbar Pain in relation to pregnancy
Open this publication in new window or tab >>Pelvic Girdle Pain and Lumbar Pain in relation to pregnancy
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The prevalence of low back pain (LBP) is higher in pregnant women compared to women of the same age in a general population. Pregnancy-related LBP persists 6 years after pregnancy in 16% of women. Consequently, pregnancy represents a specific risk for LBP and persistent LBP. Pregnancy-related LBP is usually studied as a single entity, however, only one subgroup of LBP, i.e. pelvic girdle pain (PGP), seems to be associated with pregnancy. Accordingly, possible differences in subgroups of patients with LBP are unknown.

The aims of this thesis were the following: 1) to describe the prevalence of clinically classified subgroups of women with LBP in a cohort (no LBP, lumbar pain, PGP, and combined pain (PGP and lumbar pain)) during pregnancy and postpartum, and 2) to determine if there was a disparity in the course, health-related quality of life (HRQL), pain intensity, disability, depressive symptoms, or muscle function in subgroups of the cohort, and 3) to identify predictors for having persistent pregnancy-related PGP postpartum.

Consecutively-enrolled pregnant women were classified into LBP subgroups by mechanical assessment of the lumbar spine, pelvic pain provocation tests, standard history, and pain drawings. All women answered questionnaires (background data, EQ-5D). Women with LBP completed the Oswestry Disability Index and pain measures. The Edinburgh Postnatal Depression Scale was used to evaluate depressive symptoms at 3 months postpartum (cut-off ≥10). Trunk muscle endurance, hip muscle strength, and gait speed were investigated. Multiple logistic regression was used to identify predictors from self-reports and clinical examination.

At the 12-18 gestational week evaluation, 118/308 (38%) women had no LBP, 33 (11%) had lumbar pain, 101 (33%) had PGP, and 56 (18%) had combined pain. Three months postpartum, 183/272 (67%) women had no LBP, 29 (11%) had lumbar pain, 46 (17%) had PGP, and 14 (5%) had combined pain. Pregnant women with combined pain were most affected in terms of HRQL, pain intensity, and disability. Depressive symptoms were three times more prevalent in women with LBP (27/87, 31%) than in women without LBP (17/180, 9%). Women with PGP and/or combined pain had lower values for trunk muscle endurance, hip extensor strength and gait speed compared to women without LBP. Postpartum, 16-20% of the women had persistent combined pain or PGP, whereas 1/29 had lumbar pain. Predictors for persistent PGP or combined pain were work dissatisfaction, older age, combined pain in early pregnancy, and low endurance of the back flexors.

In conclusion, women with combined pain were identified to be a target group since they had the lowest recovery rate and since the classification of combined pain was found to be a predictor for persistent PGP or combined pain postpartum. The hypothesis of an association between muscle dysfunction and PGP was strengthened. Based on the finding of high comorbidity of postpartum depressive symptoms and LBP, it seems important to screen for and consider treatment strategies for both symptoms.

Place, publisher, year, edition, pages
Institutionen för medicin och hälsa, 2007
Series
Linköping University Medical Dissertations, ISSN 0345-0082 ; 998
Keyword
Pelvic girdle pain, lumbar pain, pregnancy, health, functioning, postpartum depressive symptoms; low back pain; muscle function; gait; pregnancy-related; low back pain; course; predictors; recovery; persistent; muscle endurance
National Category
Physiotherapy
Identifiers
urn:nbn:se:liu:diva-11156 (URN)978-91-85715-14-5 (ISBN)
Public defence
2007-05-25, Berzeliussalen, Universitetssjukhuset, Campus US, Linköpings universitet, Linköping, 13:00 (English)
Opponent
Supervisors
Available from: 2008-03-06 Created: 2008-03-06 Last updated: 2009-08-22

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Gutke, AnnelieÖberg, Birgitta

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