Common questions

How do you calculate leg length discrepancy?

How do you calculate leg length discrepancy?

An apparent leg length can be measured from the umbilicus to the medial malleoli of the ankle (Fig. 2). A “direct” measurement using a tape measure can be utilized to measure the “true” leg length from the anterior superior iliac spine (ASIS) to the medial malleolus.

Is 1 cm leg length discrepancy?

What is limb-length discrepancy? Limb-length discrepancy is a difference in size between the length of both arms or both legs. Small differences in limb length are common. In fact, as many as a third of the population may have a 1 cm or less (less than ½ inch) discrepancy between their right and left legs.

When Should leg length discrepancy be corrected?

There is good consensus that leg length discrepancy should be corrected to 1 cm and 2 cm residual inequality in growing children and after skeletal maturity, respectively (2, 22).

What are the symptoms of having one leg shorter than the other?

Signs of leg-length discrepancy

  • problems with posture, such as a tilting shoulder.
  • walking problems, such as limping or toe-walking.
  • a knee that’s chronically hyperextended on the short side and flexed on the long side.
  • pain in the back, hip, knee, or ankle.

How can I fix my uneven leg length at home?

Step 1: Stand upright to ensure your back is straight. Step 2: Move the walker one step ahead of your body. Step 3: Raise the leg on your non-operative side until your knee is flexed at a 90-degree angle. Hold this position for three seconds, and then put your foot back to the floor.

What is a true leg length?

True limb length is usually defined as the distance from the anterior superior iliac spine to the medial malleolus. True leg length inequality is defined as lengthening or shortening of the above measurement as compared with the contralateral limb.

Why are my legs uneven?

The cause of an uneven leg can be functional such as hip tightness, misalignments, and curves in the spine. Over time this type of causes can lead to an discrepancy in one leg. Another cause of an uneven leg can be anatomical such as bone fractures, surgeries, polio, and uneven bone length.

What is a leg length test?

A leg length X-ray is a safe and painless test that uses a small amount of radiation to make images of the bones in a child’s legs, to measure and compare their length.