Ugland, T. O., Haugeberg, G., Svenningsen, S., Ugland, S. H., Berg, O. H., Pripp, A. H., Nordsletten, L. High risk of positive Trendelenburg test after using the direct lateral approach to the hip compared with the anterolateral approach: a single-centre, randomized trial in patients with femoral neck fracture. Bone & Joint Journal 2019; 7: 793-799