Proceeding from direct lateral to anterolateral approach in total hip arthroplasty: A closer look on radiological and clinical aspects.

Wirries, Nils; Ezechieli, Marco; Floerkemeier, Thilo; Windhagen, Henning; Skutek, Michael · J Orthop · 2020

retrospective_cohort · Level III

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Abstract

Since less invasive approaches for total hip arthroplasty (THA) are promoted, our aim was to compare direct lateral (DLA) and anterolateral approach (ALA) under otherwise identical conditions. Pre - and postoperative x-rays from 200 propensity matched patients (DLA vs. ALA) were evaluated for anatomical reconstruction. Overall, the cup position was within the safe zone in both group while the mean center of rotation (COR) was placed more medial and cranial in both groups compared to preoperative anatomy (p > 0.05). The mean leg elongation was comparable between both approaches (p > 0.05). Postoperatively the WOMAC improved about 90%. This study confirmed that the ALA can be safely used for THA in minimal invasive setting.

Anatomy