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Editorial
. 2016 Dec;2(4):334-337.
doi: 10.21037/jss.2016.11.04.

Practical implications of the lumbar spine and its function on total hip arthroplasty

Vincent Vinh Gia An  1 , Brahman Shankar Sivakumar  2 , Yadin David Levy  3 , Jim Pierrepont  4 , Warwick James Bruce  5
Affiliations
Editorial

Practical implications of the lumbar spine and its function on total hip arthroplasty

Vincent Vinh Gia An et al. J Spine Surg. 2016 Dec.

Abstract

Correct component placement is of significant importance to ensure optimal outcomes in total hip arthroplasty (THA). Traditionally, the Lewinnek plane has been referenced as an adequate "safe zone", formed between the anterior superior iliac spines and public tubercles to optimize acetabular orientation. However, recent evidence shows that the positioning of this plane may vary due to the biomechanical relationship between the lumbar spine and hip. Therefore, the plane acquired intraoperatively may not accurately recreate the actual functional plane and acetabular orientation encountered outside of the intraoperative environment. This review summarizes the hip-spine relationship and its implications on THA.

Keywords: Hip arthroplasty; deformity; lumbar spine; review.

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Conflict of interest statement

J Pierrepont is a paid employee for Corin Group. W Bruce has received research support for Corin Group. And other authors have no conflicts of interest to declare.

Figures

Figure 1
Figure 1
Variations in the sacral slope (SS) and acetabular sagittal inclinication (ASI) of the pelvis in the standing (A) and sitting (B) positions. From: acetabular anteversion with computed tomography (CT) in supine, simulated standing, and sitting positions in a total hip arthroplasty (THA) patient population [Reprinted with permission (11)].
See this image and copyright information in PMC

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