Methods for Assessing Leg Length Discrepancy

• DOI: 10.1007/s11999-008-0524-9
• Publication Date: 2008-10-03T19:19:47Z
• Authors: Sanjeev Sabharwal; Ajay Kumar
• Keywords: Modalities

The use of accurate and reliable clinical imaging modalities for quantifying leg-length discrepancy (LLD) is vital planning appropriate treatment. While there are several methods assessing LLD, we questioned how these compared. We therefore evaluated the reliability accuracy different explored advantages limitations each method. Based on a systematic literature search, identified 42 articles dealing with various assessment tools measuring LLD. Clinical such as tape measure standing blocks were noted useful screening tools, but not modalities. studies that scanogram provided measurements minimal magnification, full-length AP computed radiograph (teleoroentgenogram) more comprehensive technique, similar costs at less radiation exposure. recommend CT scanogram, especially lateral scout view in patients flexion deformities knee. Newer MRI promising need further investigation before being routinely employed LLD.Level IV, diagnostic study. See Guidelines Authors complete description levels evidence.