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Home / Publications / Interobserver Variability in Limb Length Discrepancy in THR on Radiograph – A Multicentric Study

Interobserver Variability in Limb Length Discrepancy in THR on Radiograph – A Multicentric Study

Groups and Associations Darshan C. K., Manohar Rao H.R. (Corresponding Author), Supreeth E. R., Ravi G. R.
International Journal of Scientific Research (Orthopaedics), Volume 10, Issue 06, June 2021. 2021

his original research evaluated the interobserver reliability of measuring limb length discrepancy (LLD) on standard anteroposterior pelvic radiographs following total hip replacement. Forty patients who underwent THR were assessed by two blinded observers from different institutions. The study demonstrated excellent interobserver agreement (κ = 0.867 preoperatively and κ = 0.811 postoperatively), concluding that digital radiographic measurement using the inter-teardrop line and lesser trochanter is a reliable and reproducible method for assessing LLD after THR. 

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