Hallux valgus (HV) deformities have been well defined in the adult population. HV appears to be more prevalent in elderly and female populations and it is postulated that women's shoe wear contributes to its progression. This study was a pilot to quantify the prevalence of foot deformities and foot pain in an adolescent population. Our cohort consisted of 202 school children aged 11–17 recruited from two schools in Edinburgh. Foot health data was recorded via the Manchester Scale (MHVS) and the Oxford Ankle and Foot Questionnaire (OAFQ). Photographic assessment of all participants allowed MHVS to be calculated by two orthopaedic surgeons. The photographic assessment was then repeated by the same surgeon 12 months later to allow inter and intra observer reliability to be calculated. Results showed that the prevalence of HV in our cohort was 32.7% and there was a female preponderance 56% to 44%. Other foot measurements revealed 48.5% had HV-interphalangeus, 25.7% had a low medial longitudinal arch and 22.3% had a valgus hindfoot angle. Significantly more females (18%) than males (5%) wore shoes narrower than their feet (p=0.003). OAFQ scores revealed that foot pain was more common in those with HV deformities although not statistically significant (75% to 68%, p=0.243). The prevalence of foot pain was negatively correlated with age (r=−0.175, p=0.14). This study suggests that there is a significant prevalence of HV and foot pain amongst female adolescents. This will need to be confirmed by a population study based on power calculation informed by this pilot

In hallux valgus (HV), toe pronation is frequently seen, although there may be some with no pronation. Aims. to evaluate big toe pronation in patients with HV with a clinical and radiographic method. Material and methods. prospective study of 40 patients with HV on the waiting list for surgical treatment. Patients were standing barefoot on a rigid platform. Digital photographs were taken in a frontal plane to obtain the nail-floor angle formed by the secant line of toenail border and a line formed by the platform edge. All patients were evaluated using the AOFAS for HV and lesser toes, if they were affected. Personal and social data were obtained from clinical interviews. Charge radiographs were used to obtain HV, intermetatarsal and PASA angles, first metatarsal rotation as well as sesamoid bones displacement. Exclusion criteria: rheumatoid arthritis and previous intervention on foot or toes. Statistical analysis were performed with a multiple lineal regression. Results. the mean age was 57 years old, they were 31 female and 9 men, with an average AOFAS score of 49, they had a mean of 37° HV angle, 27° nail-floor angle, 20° first metatarsal rotation in about half of patients. We have found a statistical significant relation between HV and nail-floor angles (p<0,001), between sesamoid bones displacement and nail-floor angles (p<0,007), between first metatarsal rotation and HV angle (p<0,001. We found no statistically significant but strong relation between first metatarsal rotation and sesamoid bones displacement. Conclusion. nail-floor angle is strongly related to degree of HV, displacement of sesamoid bones and rotation of the first metatarsal