A technical tip for assessing leg length discrepancy in radiographs with windswept hips.

Restoration of equal leg lengths is essential when performing total hip arthroplasty. Pre-operatively, surgeons should assess leg length discrepancy (LLD) on plain radiographs to help adequately plan their operation. Often the hips are in a minor windswept position on radiographs and this can make assessing LLD unreliable. We have devised a simple method for assessing LLD on plain radiographs in patients with windswept hips.

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Déclaration de conflit d'intérêts

The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Tim Board reports consultancy payments and patents from DePuy Synthes, grants from NIHR and Symbios, speaker payments from DePuy Synthes, Corin, and Symbios, and travel/accommodation/meeting expenses from DePuy Synthes, Corin, Symbios, and MatOrtho, and unpaid shares in Eventum Orthopaedics, all unrelated to the study. Tim Board is Vice President of the British Hip Society. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.