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Unveiling the Hidden Links: Anatomical and Radiological Insights into Primary Hip Osteoarthritis
Valerio Tiburzi1, Carlo Ciccullo1, Luca Farinelli1
1Clinical Ortopaedics, Department of Clinical and Molecular Sciences, Politecnica University of Marche, 60126 Ancona, Italy.
Insights
Increased femoral version, a hip bone measurement, is linked to primary hip osteoarthritis (OA). This finding may help understand the causes of hip OA in older adults.
Area of Science:
- Orthopedics
- Radiology
- Rheumatology
Background:
- Hip osteoarthritis (HOA) is a growing global health concern, causing significant disability in aging populations.
- Primary HOA's pathogenesis remains poorly understood, often diagnosed by exclusion.
- Identifying anatomical risk factors is crucial for understanding HOA development.
Purpose of the Study:
- To investigate the association between specific anatomical features and primary hip osteoarthritis.
- To correlate femoral-acetabular and spinopelvic parameters with the presence of primary hip OA.
Main Methods:
- Retrospective analysis of computed tomography (CT) scans from 2019-2021.
- Inclusion criteria: patients aged 45+ without confounding pelvic or lower limb conditions.
- Measurement of femoral, acetabular, and spinopelvic parameters; assessment of hip and knee OA signs.
Main Results:
- A cohort of 232 patients was analyzed, divided into isolated hip OA (Group A, n=129) and no OA (Group B, n=103).
- Group A exhibited a significantly higher mean femoral version (16 ± 4.53°) compared to Group B (13.16 ± 4.37°, p=0.0001).
- No significant differences were observed in other measured parameters.
Conclusions:
- This study identifies a significant association between increased femoral version and primary hip osteoarthritis.
- Femoral version may represent a contributing anatomical factor in the development of primary hip OA.
Background:
Hip osteoarthritis (HOA) is a disease with globally rising incidence that leads to disability and morbidity, overall, in older populations, and might be primary or secondary to numerous risk factors. The most common idiopathic HOA is generally a diagnosis of exclusion, with pathogenetic mechanisms largely still misunderstood. We aimed to investigate the correlation between femoral-acetabular and spinopelvic anatomical and computed tomography (CT) characteristics, and the presence of primary OA.
Methods:
We retrospectively analyzed CT scans from 2019 to 2021, excluding patients under 45 years or with conditions affecting the pelvis, sacrum, or lower limbs. Femoral, acetabular, and spinopelvic parameters were measured; signs of OA were analyzed in the hip and knee joints. Patients were categorized into two groups: A (isolated hip OA) and B (no OA); patients with hip OA, also presenting knee OA, were excluded from this study.
Results:
In total, 232 cases were examined; statistical analyses compared CT parameters between 129 subjects from Group A and 103 patients of Group B. Group A showed a mean femoral version of 16 ± 4.53 degrees, significantly higher than Group B's 13.16 ± 4.37 degrees (p = 0.0001). Other parameters showed no significant differences.
Conclusion:
This study highlights an association between femoral version and primary hip OA.
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