Self-treatment for sacroiliac-derived low back pain

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Hélène Bertrand M.D. endured 37 years of low back pain before, in 2003, she found relief through prolotherapy (a type of sugar injection). As a result of her personal pain-relief journey, since 2009, she has been researching pain-relieving techniques while working as a clinical instructor in the University of British Columbia’s Department of Family Practice, in Canada. Dr Bertrand developed the groundbreaking SIFFT assessment method for low back pain and associated SIFFT-E treatment exercise.
While back pain is now the most common cause of disability globally, it is often considered to be nonspecific. Low back pain (LBP) commonly leads to individuals repeatedly visiting their doctor, spending money on expensive treatments, and taking time off work. While problems with the sacroiliac (SI) joint are a common generator of LBP, patients usually receive generic treatment, with issues assumed to be related to the lumbar spine. This may be due to difficulty in diagnosing problems with the SI joints. Unlike all other joints which are smooth, they are full of irregularities, so their alignment cannot be assessed using x-rays, CT scans, or MRIs.

The SI joints connect the sacrum, found at the base of the spine, to the two pelvic bones, which form the pelvis and hold the hip joints. They are found under the skin and muscles of the upper buttocks – the region where individuals experience the majority of LBP. This is unsurprising when we consider that the SI joints protect the spine by absorbing the shock of every step we take.

Causes of weakened SI ligaments

All joints are surrounded and held together by a girdle of ligaments. Because of the strain they are under, there are more ligaments holding the SI joints than any other joint in the body. During pregnancy, the hormone relaxin (required to open the birth canal during childbirth) coupled with the weight of the baby weakens the SI ligaments. Other conditions besides pregnancy which can lead to weakened SI ligaments include: old age, which brings a reduction in the collagen that the ligaments are made of; injury, perhaps resulting from impact to the ischium (the lowest part of the pelvic bone, sometimes known as the ‘sit bones’) during a fall; landing hard on one foot or slamming on the brakes of a car; having legs that are slightly different lengths, resulting in more strain on one set of SI joint ligaments; lifting or carrying heavy weights; and hypermobility of the joints due to defective collagen, such as in Ehlers-Danlos syndrome.


Dr Bertrand’s personal story

Dr Hélène Bertrand M.D.’s low back pain began during the late stages of her first pregnancy in 1966. Pregnancy, one of several conditions known to weaken the stabilising ligaments of the SI joints, can predispose those joints to subluxation (or sprain). She searched for an effective treatment for her own low back pain for decades. In 2003, a friend, Dr Murray Allen, treated her SI joints with prolotherapy (injections of dextrose, a simple sugar, where ligaments and tendons insert on the covering of the bone). For the first time she remained free of pain for months. In 2009, Dr Bertrand carried out a randomised controlled study evaluating the treatment of rotator cuff tendinopathy (inflammation or tearing of a tendon in the shoulder) with dextrose prolotherapy.

Commonly seeing patients presenting with LBP, Dr Bertrand explored new methods of examining the SI joints. After carrying out a consecutive patient data collection, she discovered that more than 75% of LBP sufferers had displaced SI joints. This led her, in 2021, to carry out a pilot study to determine the effectiveness of a new evaluation and treatment method she had been working on – the sacroiliac forward flexion test and its associated exercise (SIFFT and SIFFT-E).

The SI joints protect the spine by absorbing the shock of every step. They can be displaced by a heavy landing on the foot, hip, or bottom, and by prolonged sitting or heavy lifting. SciePro/
The sacroiliac joints are full of irregularities so they cannot be assessed using x-rays, CT scans, or MRIs. amedeoemaja/

Diagnosing SI joint sprains with SIFFT

SIFFT is a brief physical examination used to establish the direction and severity of sacroiliac displacement, so that an appropriate corrective exercise can be undertaken. First, the legs are measured to assess whether they are of different lengths, as this is a known cause of stress to the SI joint. If the legs are unequal, lifts are placed under the shorter heel to equalise them. Then, the patient bends forward, at a 90-degree angle, and the practitioner locates the sacroiliac spines by running the side of their thumbs up the sacrum, pushing down and upwards until they are stopped by the bony processes of the posterior superior iliac spines (PSIS). The practitioner marks each side with a pen and measures the height difference between the two sides.

“While problems with the sacroiliac joint are a common generator of LBP, patients usually receive generic treatment.”

If the ligament underneath one of the spines is tender, this indicates that the sacroiliac joint on that side (left or right) is sprained. If the PSIS on this side is higher, this indicates that the iliac bone is rotated forward (anterior) on the sacrum. If the spine on this side is lower, this indicates that the iliac bone is rotated backward (posterior) on the sacrum.

Treating SI joint sprains with SIFFT-E

For an anterior sprain, the iliac bone can be relocated with the thigh pushing backwards hard against the front of this bone. For a posterior sprain, the muscles attached to the front of the iliac bone will pull it forward when the thigh is stretched back until a hard pull is felt in the groin.

One of Dr Bertrand’s patients, with a scar from a lumbar laminectomy. After three fruitless laminectomies, this man’s back pain vanished after the two-minute corrective procedure.

People can treat themselves by placing the knee on the posterior sprain side on a pillow on the floor and the foot on the anterior sprain side ahead of it with their hands on the floor on either side of the anterior foot. They should feel the thigh on the anterior side pushing hard against the pelvic bone, and a hard pull in their posterior side groin. They then hold this position for two minutes.

To treat an anterior sprain, the patient can stand with their foot (on the affected side) on the seat of a chair. The knee on the unaffected side should be resting against the seat edge. The patient must then pull up hard on the sides of the seat, lean backward to push the thigh forcefully on the iliac bone and hold this position for two minutes.

If patients cannot treat themselves, they lie on their back on the consulting table, with their hips near the end of the table. They then place their foot on the anterior side on the practitioner’s sternum and the practitioner leans forward to push backward on the anterior ileum with the thigh. They press down hard on the patient’s posterior side thigh, hyperextending it to use the muscles attached on the anterior ileum to pull it forward.

SIFFT is a brief physical examination which establishes the severity of sacroiliac displacement.

All these positions are held for two minutes except in those who are hypermobile where the joints can be replaced more quickly, perhaps in as little as one minute.

Pilot study methods

In her pilot study, Dr Bertrand evaluated patients who had experienced LBP for at least three months, and who had a pain score of at least 5/10, in her Vancouver clinic. She used the SIFFT method to establish the height of the patient’s left and right posterior superior iliac spines with the help of a spirit level. She then invited those with a difference in height between the left and the right side of at least 5mm to participate in her study.

Participants were randomly assigned to one of three groups, who were given different LBP-relieving treatments. Dr Bertrand gave Group 1 instruction in SIFFT-E. She gave Group 2 a pelvic stabilisation belt to wear, while Group 3 continued with their usual care. After one month, she gave all participants SIFFT-E and a stabilisation belt.

Dr Bertrand used the Oswestry disability index (ODI) to check whether the participants’ condition improved from the start of the study to one month and two months. This would be indicated by a reduction in ODI score. Additionally, she repeated the SIFFT assessment method, to check whether the height of the left and right sacroiliac spines were more level. This would be indicated by a reduction in the distance between the heights of the left and right posterior superior iliac spines (PSIS).

SIFFT-E stretch exercise to level a right anterior, left posterior sacroiliac malrotation.

Dr Bertrand’s findings

Dr Bertrand found that 62 of her 72 LBP patients had PSISs with a height difference of at least 5mm. In the SIFFT-E group, the ODI scores of the 21 participants improved more than the 20 participants receiving usual care (12.5 ± 14.8 vs -3.4 ± 14.9 points) after one month. Notably, 54 of 60 one-month SIFFT-E participants (90%) experienced immediate pain relief after the SIFFT E exercise. Dr Bertrand found intermediate results with the belt-wearing group.

“The SIFFT method could be a useful assessment tool for prescribing a simple and effective self-directed corrective exercise.”

After two months, 60 participants had used the SIFFT-E method and belt as needed. At this point, Dr Bertrand found clinically significant improvements in ODI (12.0 ± 18.4 points). Furthermore, the average difference in height between the left and right sacroiliac spines decreased by 8.6 ± 8.6mm. Only 5 (8%) participants using SIFFT-E and 12 (19%) participants using the pelvic stabilisation belt had mild side effects.

Concluding that differences in height between the left and right sacroiliac joints are common, Dr Bertrand suggested that the SIFFT method could be a useful assessment tool for prescribing a simple and effective self-directed corrective exercise (SIFFT-E). A pelvic stabilisation belt, tightened around the lower pelvis, could be useful in preventing recurrent episodes of LBP.

Future research directions

Further research is needed to determine how the accuracy of palpation, or examining with the hands, compares to that of ultrasound in finding the heights of the posterior superior iliac spines. SIFFT/SIFFT-E may become a low-cost, drug-free addition to the current approach to LBP evaluation and treatment. Dr Bertrand is also developing a mannitol-based cream, which can provide pain relief for structures close to the skin. This follows on from the concept of using dextrose in prolotherapy, but may be preferable for patients with diabetes, or for those with an aversion to injections.

If the SIFFT/SIFFT-E method is adopted by healthcare providers as standard practice in the treatment of LBP, what effect do you think this will have on the prevalence and global burden of the condition?
In most people, chronic low back pain interferes with their ability to work. They need physiotherapy, chiropractic manipulation, painkillers, surgery to their spine and numerous other costly, often ineffective and potentially serious side-effect prone treatments to help control their pain. This simple self-administered treatment can help relieve low back pain in the majority of those suffering from it and reduce the need for other therapies.



  • Bertrand, H, (2022) Chronic low back pain forced me to search for and find pain solutions: an autobiographical case report. Cureus, 14(1), e21529. 10.7759/cureus.21529
  • Bertrand, H, et al, (2021) Self-treatment of chronic low back pain based on a rapid and objective sacroiliac asymmetry test: a pilot study. Cureus, 13(11), e19483.
  • Bertrand H, et al, (2016) Dextrose prolotherapy versus control injections in painful rotator cuff tendinopathy. Arch Phys Med Rehabil, [online] 97, 17–25.
  • Bertrand H, Kyriazis M, Reeves K, et al, (2015) Topical mannitol reduces capsaicin-induced pain: results of a pilot-level, double-blind, randomized controlled trial. PM R, 7:1111–7.

Research Objectives

Hélène Bertrand researches low back pain, and has developed the groundbreaking SIFFT assessment and the SIFFT-E treatment method.


Serola biomechanics supplied the pelvic stabilization belts.


  • Co-authors: K Dean Reeves, M.D., Ellen Wiebe M.D.
  • Participating physicians: Rajneet Mattu, M.D., Remerlita Garcia M.D., Mahir Mohammed M.D.
  • Statistical analysis: An-Lin Cheng Ph.D.


Hélène Bertrand gained her Doctor of Medicine at McGill University, Canada, in 1965. She has been a clinical instructor in the Department of Family Practice, University of British Columbia, since 2009.

Hélène Bertrand

125 2nd St W, Apt 1202
North Vancouver, BC, Canada
V7M 1C5

T: +1 778 227 7776

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