Studies show that 10-14% of the population have a leg-length difference of 9-10mm or more (Giles & Taylor,1985; Rock, 1988).
Daw data provided in the radiological studies calculations shows that differences in leg-length of 5mm or more are found in around 55% of the general population.
The assumption has been that differences less than 10mm are unlikely to be significant. This is a false assumption as it has been found as little as 2mm leg-length difference as profound effects on posture.
Leg Length
Standing and Supine Position
- Greater trochanter
- Tibial tuberocity
- Medial malleolus
- Heel pads
Confirmation Tests
- Forward Bend Test
- Long seated position
- Medial malleolus
- Heel pad
- Supine Bent Knee
- Patella
- Prone Bent Knee
- Heel Pad
Additional Tests
Sacral Iliac Assessment
- Forward Bend Test
- Single Leg Lift
Lumbar Facet Joint
- Forward Bend
- Lateral Side Bend