Intraoperative Measurement of Cup Inclination Using Fluoroscopy Requires a Correction Factor.

Kilian Rueckl, Diego J. Alcaide,Bernhard Springer,Stefan Rueckl,Maximilian F. Kasparek,Friedrich Boettner

Archives of orthopaedic and trauma surgery（2019）

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摘要

Malpositioning of the cup in total hip arthroplasty (THA) is associated with dislocation, early polyethylene wear, and impingement. The direct anterior approach (DAA) THA allows for intraoperative fluoroscopy imaging (IF). The current study investigates the following research hypotheses: (1) intraoperative measurements of radiographic cup inclination (RI) are reliable and reproducible. (2) A correction factor can compensate for the complex parallax effects when using IF.

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关键词

THA,Cup positioning,Intraoperative fluoroscopy,Inclination

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