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Functional Limb Length Discrepancy
What it Measures
Comparative Length of ASIS to Distal Hallux of one side vs the other sides
Significance
- Low significance
- Moderate significance above 2cm difference
- High significance above 3cm difference
Normal Value
- Equal lengths bilateral
Exam containing this measurement:
| | BIQ 24 |
| | BIQ 10 |
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About
Functional Limb Length Discrepancy refers to an apparent difference in limb length that is not caused by actual bone length inequality, but by asymmetries in alignment, joint position, or muscle balance. It often arises from factors such as pelvic tilt, foot mechanics, or compensatory movement patterns.
This type of discrepancy can change how forces are distributed during standing and walking, leading to altered gait mechanics and uneven loading throughout the lower extremities. Identifying functional differences helps distinguish them from true structural discrepancies and guides appropriate correction strategies.
Effect of Deviation
Functional limb length discrepancy may lead to uneven loading between limbs, altered gait mechanics, and compensatory patterns at the foot, knee, hip, or pelvis.
Functional Limb Length Discrepancy
What it Measures
Comparative Length of ASIS to Distal Hallux of one side vs the other sides
Significance
- Low significance
- Moderate significance above 2cm difference
- High significance above 3cm difference
Normal Value
- Equal lengths bilateral
Exam containing this measurement:
| | BIQ 24 |
| | BIQ 10 |
Hide/show animation
About
Functional Limb Length Discrepancy refers to an apparent difference in limb length that is not caused by actual bone length inequality, but by asymmetries in alignment, joint position, or muscle balance. It often arises from factors such as pelvic tilt, foot mechanics, or compensatory movement patterns.
This type of discrepancy can change how forces are distributed during standing and walking, leading to altered gait mechanics and uneven loading throughout the lower extremities. Identifying functional differences helps distinguish them from true structural discrepancies and guides appropriate correction strategies.
Effect of Deviation
Functional limb length discrepancy may lead to uneven loading between limbs, altered gait mechanics, and compensatory patterns at the foot, knee, hip, or pelvis.
Functional Limb Length Discrepancy
What it Measures
Comparative Length of ASIS to Distal Hallux of one side vs the other sides
Significance
- Low significance
- Moderate significance above 2cm difference
- High significance above 3cm difference
Normal Value
- Equal lengths bilateral
Hide/show illustrations
Exam containing this measurement:
| | BIQ 24 |
| | BIQ 10 |
About
Functional Limb Length Discrepancy refers to an apparent difference in limb length that is not caused by actual bone length inequality, but by asymmetries in alignment, joint position, or muscle balance. It often arises from factors such as pelvic tilt, foot mechanics, or compensatory movement patterns.
This type of discrepancy can change how forces are distributed during standing and walking, leading to altered gait mechanics and uneven loading throughout the lower extremities. Identifying functional differences helps distinguish them from true structural discrepancies and guides appropriate correction strategies.
Effect of Deviation
Functional limb length discrepancy may lead to uneven loading between limbs, altered gait mechanics, and compensatory patterns at the foot, knee, hip, or pelvis.