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Fig. 2 | Arthroplasty

Fig. 2

From: Direct anterior approach in total hip arthroplasty: more indications and advantages than we found

Fig. 2

The hip-spine relation at different positions of standing, upright sitting, declined sitting, and supine position. A Typical parameters used for evaluating hip-spine coordination in standing, LL = 46°, SS = 43°, PT = 20°. B Typical parameters used for evaluating hip-spine coordination in upright sitting, LL = 24°, SS = 21°, PT = 35°. C Typical parameters used for evaluating hip-spine coordination in declined sitting, which imitates lateral decubitus position in traditional posterolateral approach THA, LL = 4°, SS = 2°, PT = 54°. D Typical parameters used for evaluating hip-spine coordination in supine position, which imitates supine DAA, LL = 40°, SS = 39°, PT = 20°

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