What it means
One half of the pelvis higher than the other on standing, with uneven shoulders.
Where it comes from
A leg length difference or an imbalance in the lateral trunk and hip muscles.
How it is measured
It is measured on the front view, in the coronal plane. The defining measurement is One hip higher (Pelvic obliquity), and it is reported as a finding from above 2°. The number is computed from landmarks on that photograph — not estimated by eye, and not compared against a stock example.
What the numbers mean
| Measurement | Grade |
|---|---|
| up to 2° | Within normal range |
| 2–4° | Mild obliquity |
| 4–6° | Moderate obliquity |
| 6° and above | Severe obliquity |
Source of the bands: Photographic inter-ASIS line from horizontal
What is usually seen alongside it
- Sideways curve of the spine (Cobb angle) — above 10°
- One shoulder higher (Acromial tilt) — above 2°
None of these is a diagnosis on its own. Together they corroborate the finding; apart, they do not refute it — a measurement nobody took counts neither for nor against.
What confirms it
Leg-length difference, gluteus medius weakness and adductor contracture are the three usual causes, separated by a tape measure, the Trendelenburg test and the Ober test.
Every number on this page is measured on the skin surface in a photograph. That is not the same as a measurement taken on a radiograph: it correlates with one and does not replace it. Wherever the decision depends on imaging, this page and the report itself say so.
What happens at the clinic
The assessment starts with three standing photographs — front, side and back. Every angle is measured on those photographs, the report prints the number and the grade for each, and the exercise programme is built from those numbers rather than from a template. Posture analysis explains the whole path, and the online assessment can be started from your own photograph now.
Frequently asked questions
At what point is pelvic obliquity reported?
When one hip higher (pelvic obliquity) is above 2°, it is reported as a finding. That is where the "Mild obliquity" band begins. The bands come from: Photographic inter-ASIS line from horizontal
Can pelvic obliquity be assessed from a photograph?
A photograph gives a number, which most assessments do not have. But it is a surface measurement and it does not replace imaging. Leg-length difference, gluteus medius weakness and adductor contracture are the three usual causes, separated by a tape measure, the Trendelenburg test and the Ober test.
What is the most severe grade?
The worst band in this table is "Severe obliquity". The grade is printed beside the measurement itself in the report, so it is always clear which number produced the word.