What is The Role of Pelvic & Leg Imbalances in Scoliosis?

May 15, 2024

I’ve been helping people take a whole-body approach to their scoliosis for years. 

One of the reasons for this is that we can’t ignore the rest of the body when dealing with scoliosis. Dentists and researchers have long postulated imbalances in the teeth (1) may play a role in idiopathic scoliosis, and many other disciplines have good theories about what causes scoliosis. There is, currently, no ‘smoking gun’ when it comes to the cause of adolescent idiopathic scoliosis. However, it is worth looking at the rest of the body for anything that could contribute to scoliosis or prevent it from improving. 

One area I’m particularly interested in is the pelvis.

I view the pelvis as the foundation of the spine. If we drop a midline or ‘plumb line’ down the front of someone’s body it would follow their spine and then dissect the pelvis in half. However, my scoliosis patients often have their pelvis rotated or shifted to one side.

Often, this is an adaptation to scoliosis, but what if it’s an adaptation to something with the feet or hips that is actually making the scoliosis worse?

Let’s look at some common causes of pelvic imbalance and see what we can do about them. 

  • Apparent Leg Length Deficiency: This condition arises when postural muscle imbalances cause one side of the body to draw up the leg despite equal lengths. The solution is to find which muscles are tight and how they affect the joint. For example, tight hip external rotators will externally rotate the hip, making the hip a little longer. Tight hamstrings, popliteus, and calf muscles can flex the knee, causing the leg to appear shorter. Stretching and mobilizing the joints and muscles will help in these cases.
  • A collapsed arch on one foot pulls the hip down on the same side. Foot strengthening exercises and, in some cases, orthotics can help with this. 
  • True Leg Length Deficiency: There is an actual difference in bony length between the left and right sides. This is best corrected with a lift on the shorter side. 

However, sometimes, the anatomy of the scoliosis can also drive the pelvis into rotation and an oblique tilt. This has to do with the weight shift that happens when scoliosis isn’t balanced. In an S-curve, this occurs when one curve is larger than the other, but it’s also common in adult degenerative lumbar spine scoliosis. But this is then compounded by postural habits that tighten up muscles. Assessing the hips in all six cardinal directions is essential before starting any corrective-type exercise.

In the Scoliosis Correction Protocol, we use 22 different body tests to build a picture of imbalances in our patients before we get them to do any specific scoliosis exercises. This allows the scoliosis exercises to be more effective as they are not ‘fighting’ against muscle imbalance elsewhere in the body that could be adding to their scoliosis. 

Understanding the interconnectedness of pelvic and lower extremity imbalances with scoliosis progression underscores the holistic approach required for effective management. By addressing these contributing factors through tailored interventions, we can optimize postural alignment and mitigate the impact of scoliosis on overall spinal health. As healthcare practitioners, we must learn to recognize and address these intricate relationships to provide comprehensive care for individuals with scoliosis.

I hope you found this information helpful. If you want my help to see if we can use specific exercises and lifestyle medicine to help you recover from pain, injury, or illness, please reach out to me via ed@edpaget.com

  1. https://www.researchgate.net/publication/7842106_The_Influence_of_an_Experimentally-Induced_Malocclusion_On_Vertebral_Alignment_in_Rats_A_Controlled_Pilot_Study

Over the last 10 years Ed has been building a YouTube library to help people manage their own pain or movement limitations and increase performance through exercise. He regularly adds videos so be sure to subscribe and visit regularly