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One of the main functions of the pelvis is to transfer load from the trunk to the lower limbs during all day to day activities such as standing, walking and running and to do this effectively there has to be adequate stability.
This stability is achieved by a combination of factors:
During load transfer the sacrum tilts forward (nutates) between the ilia and combined with the factors above, a self locking mechanism is produced which provides optimal stability of the pelvis.
There also has to be flexibility and shock absorption during activities such as walking and other weight bearing activities so there is also normally a small amount of movement at the sacro iliac joints.
Pregnant women are by far the most commonly affected group but it can however affect women who are not pregnant and men too sometimes as a result of injury or trauma.
When Pelvic Girdle Pain is studied separately rather than being included with low back pain several studies have shown the incidence to be around 20% of all pregnant women with around 5% of women having serious problems with pain and disability (Larsen et al 19991Ostgaard et al 1994b2)
The incidence of pelvic girdle pain in the non pregnant population is not known but studies on post natal women have shown that untreated around 7% of women continue to experience symptoms 2 years post natally3
Symptoms vary widely from one person to another from mild occassional discomfort when walking to severe debilitating pain requiring crutches or a wheel chair.
Not all women have the classically described pain in the Symphysis Pubis Joint. Pain may be felt only in the sacro iliac joint/s
Symptoms may include:
The exact cause is not clear but a number of different factors have been identified which include:
In pregnancy there is an Increase in the amount of the hormone relaxin which causes softening of the ligaments throughout the body.
However research by Bjorklund et al (1999) concluded that hormone levels alone had no relevance to the development of symptoms in the women in the study.
In pregnancy the muscles which normally provide support and stability to the pelvis and back are put under stress by the growing size and weight of the baby which also causes postural changes.
The pelvic floor muscles are affected by the weight of the baby sitting on the pelvic floor and the abdominal and rib cage muscles are stretched by the growing bump.
To cope with the increased joint laxity caused by the hormonal effects above the muscles have to work harder and sometimes they either overwork or work ineffectively which can result in pain.
Optimal stability of the pelvic girdle depends on the bones, joints, muscles and nerves working efficiently so ineffective muscle control can affect the function of the pelvic girdle and pain can result.
Studies have shown that there is no linear correlation between the amount of joint laxity and pain but there is a link between asymmetrical joint laxity and pain. As the pelvis is a closed ring of bone if one joint becomes stiff or stuck this will alter the function of all the other joints.
During load transfer the sacrum tillts forward (nutates) between the two ilia and together with the ligaments and muscles produces a self locking mechanism which provides optimal stability. If the sacro iliac joints don't move together this nutation of the sacrum will fail to work properly and this self locking mechanism will not be effective.
Interestingly no correlation has been found between the degree of widening of the symphysis pubis joint and pelvic pain either during pregnancy or in the post partum period
History from patient especially of pain and where and when it occurs. Pain turning over in bed, going up and down stairs and getting in and out of a car are commonly reported symptoms.
After exclusion of other condtions - e.g. Urinary tract infection, Braxton Hicks contractions, a referral should be made to a physiotherapist with experience of managing pelvic girdle pain
A thorough assessment of the lumbo pelvic hip region will be performed to decide which structures are causing pain and to work out an appropriate treatment plan.
Pelvic Girdle Pain is a diagnosis of exclusion after other causes of lumbo pelvic hip pain have been ruled out and people develop pelvic girdle pain for a variety of very individual reasons.
One test for effective load transfer between the trunk and lower limbs is the supine Active Straight Leg Raising Test (ASLR) which has been found to be reliable, sensitive and specific for pelvic girdle pain (Mens et al 1999, 2001, 2002)
A treatment plan will be recommended tailored to the individual patient which may include:
*This involves "hands on " manual techniques which may vary according to the preference of the therapist and which may include muscle release techniques, joint mobilisation, massage and muscle energy techniques.
Taping or a pelvic belt may be used as an adjunct along with core stability training.
In a study of post natal women with pelvic girdle pain an individualised treatment programme comprising of specific stabilisng exercises was shown to be effective4
Options to consider include:
TENS may be a good option to consider for pain relief in people with Pelvic girdle pain/Symphysis Pubis Dysfunction.
New Guidelines have been issued regarding the safe use of TENS in pregnancy for musculoskeletal pain. Click here to access the guidelines.
Evidence is increasing that acupuncture reduces pain in pregnant women with pelvic girdle pain. Research was published in 2005 of a single blind controlled trial5 with three groups: a control group who were offered advice, a pelvic belt and muscle strengthening exercises, a group who were given stabilising exercises and the third group who were given acupuncture.
After treatment pelvic pain was reduced significantly in the group who had stabilising exercises compared with controls but interestingly the reduction was greatest in the group who had acupuncture.
Review of Mangement of Non-Obstetric Pain in Pregnancy 2008 British Pain Society.
Click here to access the review (starting on page 10 of the document)
One of the greatest concerns that women with pelvic girdle pain/symphysis pubis dysfunction(SPD) who contact us have is how the birth of their baby will be managed.
Articles in popular press and women's magazines with headlines such as "my pelvis split in two when giving birth" only heighten this anxiety. Added to this is often the fear that giving birth will "damage" their pelvis and that they won't be able to have any pain relief in case it masks the symptoms of "damage".
The ACPWH guidelines discuss the issues around managing birth with pelvic girdle pain/symphysis pubis dysfunction(SPD) and the guidelines include advice regarding recording the pain free gap(if applicable), suggestions regarding suitable birthing positions and discuss the pros and cons of C-section and pain management.
European Guidelines on the Diagnosis and Treatment of Pelvic Girdle Pain.
Diane Lee - The Evolution of Myths and Facts Regarding Function and Dysfunction of the Pelvic Girdle
BIMM Presentation on Prolotherapy by Dr John Tanner
1.Larsen EC, Wilken-Jensen C, Hansen A, Jensen DV, Johansen S, Minck H, Wormslev M, Davidsen M, Hansen TM (1999) Symptom-giving pelvic girdle relaxation in pregnancy I Prevalence and risk factors. Acta Obstet Gynecol Scand 78: 105-110
2..Ostgaard HC, Zetherstrom G, Roos-Hansson E, Svanberg B (1994b) Reduction of back and Posterior Pelvic Pain in Pregnancy Spine 19: 894-900
3.Albert H, Godskesen M, Westergaard J (2001) Prognosis in four syndromes of Pregnancy Related Pelvic Pain Acta Obstet Gynecol Scand 80: 505-510
4.Stuge B, Laerum E, Kirkesola G, Vollestad N 2004 The efficacy of a treatment program focusing on specific stabilising exercises for Pelvic Girdle Pain after pregnancy. Spine 29 (4) : 351
5.Elden H, Ladfors L,Olsen MF, Ostgaard HC, Hagberg H. Effects of acupuncture and stabilising exercises as adjunct to standard treatment in pregnant women with pelvic girdle pain randomised single blind controlled trial. BMJ 2005: 330: 761