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. 2023 Sep 9:16:11795441231191790.
doi: 10.1177/11795441231191790. eCollection 2023.

Revealing the Effect of Spinopelvic Alignment on Hip Disorders

Zafer Soydan  1 , Emru Bayramoglu  2 , Okyar Altas  3 , Cengiz Şen  4
Affiliations

Revealing the Effect of Spinopelvic Alignment on Hip Disorders

Zafer Soydan et al. Clin Med Insights Arthritis Musculoskelet Disord. .

Abstract

Background: Hip osteoarthritis (HOA) is a growing burden and one of the leading causes of hip pain. The relationship between the HOA and the alignment of the spinopelvic region has been intensively studied, however the issue remains controversial. Spinopelvic imbalance, HOA, and dysplasia were investigated in relation to sagittal spinopelvic parameters in this study.

Methods: We collected computerized tomography (CT) topograms of the pelvis or abdomen from 380 patients. In antero-posterior (AP) topograms, Tonnis grading, center-edge angle (CEA) and Sharp's acetabular angle (AA) measurements were performed on each patient. Lateral topograms were used to evaluate the following spinopelvic parameters for each patient: pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), sacral table angle (STA), lumbar lordosis (LL), proximal lumbar lordosis (PLL), distal lumbar lordosis (DLL), and PI-LL difference. Initially, the cohort was divided into two subgroups based on whether or not they had HOA. Then, they were divided into two subgroups based on whether or not they had dysplasia. Ultimately, it was divided in half based on the PI-LL imbalance. Statistical analyses were conducted to determine the likely correlations between the spinopelvic parameters of these subgroups. In addition, the correlations between spinopelvic parameters were investigated.

Results: There were 380 patients evaluated. We found no association between HOA or dysplasia and spinopelvic parameters. In addition, there was no association between PI-LL imbalance and HOA or dysplasia.

Conclusion: There was no difference in constant PI and STA angle, besides other variable parameters, between groups having HOA and dysplasia or not. PI-LL imbalance has no effect on HOA and dysplasia.

Keywords: Hip osteoarthritis; PI-LL imbalance; correlation analyses; hip dysplasia; sagittal spinopelvic parameters.

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Conflict of interest statement

The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Figures

Figure 1.
Figure 1.
Measurement of spinopelvic parameters. DLL indicates distal lumbar lordosis; LL, lumbar lordosis; PI, pelvic incidence; PLL, proximal lumbar lordosis; SS, sacral slope; STA, sacral table angle.
Figure 2.
Figure 2.
Measurement of CEA and AA. AA indicates acetabular angle; CEA, center-edge angle.
Figure 3.
Figure 3.
Scatter plots of spinopelvic parameters. LL indicates lumbar lordosis; PI, pelvic incidence; PT, pelvic tilt; SS, sacral slope; STA, sacral table angle.
See this image and copyright information in PMC

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