AI Article Synopsis
- The study examined the potential causal relationship between the medial partite hallux sesamoid (MPHS) and hallux valgus (HV) using data from a diverse group of participants aged 21-95 years.
- Out of 3,994 feet analyzed, 12.7% had MPHS, with notable differences in prevalence between men and women, and a significant decrease in MPHS occurrence with age.
- The findings suggest that while MPHS is associated with an increased HV angle, the relationship is stronger in younger populations, indicating that MPHS may contribute to the development of HV rather than being caused by it, particularly in younger adults.
Article Abstract
Background: An association between the medial partite hallux sesamoid (MPHS) and hallux valgus (HV) has been suggested; however, a causal relationship has not been confirmed. This study aimed to determine their causal relationship using a cross-sectional radiographic survey of a large-scale population cohort covering a wide age group.
Patients And Methods: The fifth survey of the Research on Osteoarthritis/Osteoporosis against Disability study involved 1997 participants aged 21-95 years who had undergone anteroposterior radiography of bilateral feet. The presence of MPHS, its morphology, and radiographic parameters related to the HV were assessed using radiographs. Changes in the prevalence of MPHS with age were assessed using trend tests. The relationship between the MPHS and HV was assessed based on sex and age.
Results: MPHS was found in 508 out of 3994 feet (12.7 %), with a significant difference in prevalence between men and women (10.0 % vs. 13.7 %, p < 0.001). Trend analysis demonstrated a significant decrease in MPHS occurrence with age in both sexes. HV angle was significantly higher in feet with MPHS than in those without (Men: 17.8 ± 7.0° vs. 14.0 ± 5.9°, p < 0.0001; Women: 19.6 ± 7.7° vs. 17.7 ± 7.9°, p < 0.0001). The prevalence of HV angle ≥ 20° was also significantly higher in feet with MPHS than in those without (Men: 33.3 % vs. 14.6 %, p < 0.0001; Women: 46.5 % vs. 34.6 %, p < 0.0001). This association between MPHS and HV was noticeable in younger adults and became less prominent with age.
Conclusions: MPHS is associated with HV. The weakening of this relationship and the decreased prevalence of MPHS with age suggest that MPHS is not caused by HV, but is one of the causes of HV, especially in younger adults.
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| http://dx.doi.org/10.1016/j.fas.2023.07.011 | DOI Listing |
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Relationship between medial partite hallux sesamoid and hallux valgus in the general population.
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Article Synopsis
- The study examined the potential causal relationship between the medial partite hallux sesamoid (MPHS) and hallux valgus (HV) using data from a diverse group of participants aged 21-95 years.
- Out of 3,994 feet analyzed, 12.7% had MPHS, with notable differences in prevalence between men and women, and a significant decrease in MPHS occurrence with age.
- The findings suggest that while MPHS is associated with an increased HV angle, the relationship is stronger in younger populations, indicating that MPHS may contribute to the development of HV rather than being caused by it, particularly in younger adults.
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