Fig. 3From: Comparison of short-term outcomes of anterolateral supine approach and posterolateral approach for primary total hip arthroplasty: a retrospective studyEvaluation of muscle strength of hip internal and external rotation. From 2 weeks to 6 months postoperatively, hip external rotation strength was significantly lower in the PL group than in the ALS group. ALS, anterolateral supine; PL, posterolateral; POD, postoperative day. **Indicates significance at P < 0.01Back to article page