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. 2023 Sep 16:23:101202.
doi: 10.1016/j.artd.2023.101202. eCollection 2023 Oct.

Is Timing of Total Hip Arthroplasty and Lumbar Spine Fusion Associated With Risk of Hip Dislocation?

Sebastian Welling  1 , Spencer Smith  1 , Jung Yoo  1 , Travis Philipp  1 , Mark Mildren  2 , Ryland Kagan  1
Affiliations

Is Timing of Total Hip Arthroplasty and Lumbar Spine Fusion Associated With Risk of Hip Dislocation?

Sebastian Welling et al. Arthroplast Today. .

Abstract

Background: In patients with concomitant hip and lumbar spine disease, the question of which surgery-total hip arthroplasty (THA) or lumbar spine fusion (LSF)-to address first has not been adequately answered. We aimed to evaluate the risk of dislocation after THA in patients with LSF first or after THA.

Methods: Retrospective review utilizing the PearlDiver database querying Current Procedural Terminology codes for LSF in the year prior (LSF first) or in the year after primary or revision THA (THA first). International Classification of Disease codes identified postoperative hip dislocation as our primary outcome variable. Demographic data collected included age, sex, and obesity. Dislocation rates were described as a proportion of the cohort and compared with chi-square tests.

Results: We identified 280,857 primary THA and 42,314 revision THA cases from 2012-2019. Of these, 2090 underwent primary THA and LSF, and 283 underwent revision THA and LSF within a year of each procedure. No differences in age, sex, or obesity between groups were noted. No difference in rate of all-time dislocation for primary THA was noted for the LSF first 51/1429 (3.6%) compared to the THA first 30/661 (4.0%) groups (P = .34), or for revision THA with LSF first 48/204 (23.5%) compared to THA first 27/117 (23.1%) groups (P = 1.0).

Conclusions: There was no difference in the risk of dislocation after primary or revision THA if LSF occurred prior to or after the THA. These findings can help surgeons as they counsel patients with concomitant lumbar spine and hip degeneration.

Keywords: Complications; Dislocation; Lumbar spine fusion; Total hip arthroplasty.

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Figures

Figure 1
Figure 1
Patient flow chart primary total hip arthroplasty (THA) and lumbar spine fusion (LSF).
Figure 2
Figure 2
Patient flow chart primary total hip arthroplasty (THA) and lumbar spine fusion (LSF).
See this image and copyright information in PMC

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