The effects of limb length discrepancy vary from patient to patient, depending on the cause and size of the difference. Patients who have differences of /2 to 4 percent of total leg length (about 4 cm or /3 inches in an average adult) may limp or have other difficulties when walking. Unequal leg length (also termed leg length inequality, LLI or leg length discrepancy, LLD) is where the legs are either different lengths or appear to be different lengths because of misalignment. The condition has been estimated to affect between 40% and 70% of the population, with at least % having a difference greater than 20 afterworld.infolty: Rheumatology.
Apr 22, · A diversity of symptoms may occur as a result of limb length discrepancies, many of which proper treatment can alleviate. Limb length discrepancy (LLD) is a very common occurrence in the pediatric and adult population. In fact, the majority of individuals have some degree of limb inequality either in structure or function. Leg length inequality of 2 cm or less is usually not a functional problem. Often, leg length can be equalized with a shoe lift, which usually corrects about two thirds of the leg length inequality.
The pattern of scoliosis associated with limb-length inequality (anisomelia) usually is described as being com-pensatory, non-structural, and non-progressive4’6. In , however, Scheller was of the opinion that anisomelia could produce structural changes in the spine with time, and many of .