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Limb length discrepancy is when one leg is shorter than the other. It can be caused by various factors, including congenital issues, fractures, or surgeries such as total hip joint or knee replacement. In the context of total hip joint replacement surgery, limb length discrepancy can occur due to factors related to the surgical procedure itself, such as the removal of damaged bone and tissue. In cases of limb length inequality following hip replacement surgery, the goal is to achieve optimal function and comfort for the patient.

Heel lifts are a common and non-invasive method used to address leg length discrepancy. Here's how heel lifts can be beneficial following total hip joint replacement surgery:
Restoration of Alignment:
Heel lifts can help restore proper alignment and balance between the legs. By adding a lift to the shorter leg, it compensates for the length difference and aids in maintaining a more even gait.
Improvement in Gait Mechanics:
Unequal leg length can affect gait mechanics, potentially leading to issues such as hip, knee, or lower back pain. Heel lifts can help improve gait mechanics by reducing asymmetrical loading on the joints and muscles.
Minimization of Discomfort:
Leg length discrepancy can cause discomfort and muscle imbalances, especially in the knee and lower back. Heel lifts can minimize these issues by providing support and reducing strain on the shorter limb.
Individualized Adjustment:
Heel lifts come in various thicknesses, allowing for individualized adjustments based on the specific degree of limb length discrepancy. This customization is important for addressing the unique needs of each patient. Proper measuring of the short leg compared to the longer limb is essential.
Gradual Adaptation:
Patients may be prescribed a gradual increase in the height of the heel lift to allow for adaptation. This gradual approach helps the body adjust to the changes in limb length over time. Most podiatrists will start with 6mm correction.
It's important to note that the use of heel lifts should be done under the guidance of a healthcare professional, such as an orthopedic surgeon, physical therapist, chiropractor or podiatrist. They can assess the extent of limb length inequality, prescribe the appropriate heel lift height, and monitor the patient's progress.
In cases of limb length inequality following hip replacement surgery, the goal is to achieve optimal function and comfort for the patient. Surgical interventions to address LLD may be considered in more severe cases, but non-invasive methods like heel lifts are often a first-line approach.
Atlas Biomechanics manufactures heel lifts in cork, eva foam and rubber.
Teri Green
Atlas Biomechanics