Prevalence of hallux valgus in the general population: a systematic review and meta-analysis

BACKGROUND: Hallux valgus (HV) is a foot deformity commonly seen in medical practice, often accompanied by significant functional disability and foot pain. Despite frequent mention in a diverse body of literature, a precise estimate of the prevalence of HV is difficult to ascertain. The purpose of this systematic review was to investigate prevalence of HV in the overall population and evaluate the influence of age and gender. METHODS: Electronic databases (Medline, Embase, and CINAHL) and reference lists of included papers were searched to June 2009 for papers on HV prevalence without language restriction. MeSH terms and keywords were used relating to HV or bunions, prevalence and various synonyms. Included studies were surveys reporting original data for prevalence of HV or bunions in healthy populations of any age group. Surveys reporting prevalence data grouped with other foot deformities and in specific disease groups (e.g. rheumatoid arthritis, diabetes) were excluded. Two independent investigators quality rated all included papers on the Epidemiological Appraisal Instrument. Data on raw prevalence, population studied and methodology were extracted. Prevalence proportions and the standard error were calculated, and meta-analysis was performed using a random effects model. RESULTS: A total of 78 papers reporting results of 76 surveys (total 496,957 participants) were included and grouped by study population for meta-analysis. Pooled prevalence estimates for HV were 23% in adults aged 18-65 years (CI: 16.3 to 29.6) and 35.7% in elderly people aged over 65 years (CI: 29.5 to 42.0). Prevalence increased with age and was higher in females [30% (CI: 22 to 38)] compared to males [13% (CI: 9 to 17)]. Potential sources of bias were sampling method, study quality and method of HV diagnosis. CONCLUSIONS: Notwithstanding the wide variation in estimates, it is evident that HV is prevalent; more so in females and with increasing age. Methodological quality issues need to be addressed in interpreting reports in the literature and in future research

A unique finding of cavum velum interpositum colloid-like cyst and literature review of a commonplace lesion in an uncommon place

Abdulaziz Mohammad Al-Sharydah,1 Sari Saleh Al-Suhibani,1 Abdulrahman Hamad Al-Abdulwahhab,1 Mohammad Saad Al-Aftan,1 Ahmad Fouad Gashgari2 1Diagnostic and Interventional Radiology Department, King Fahd Hospital of the University, Imam Abdulrahman Bin Faisal University, Dammam, Eastern Province, Saudi Arabia; 2Diagnostic Radiology Department, Dammam Central Hospital, Dammam, Eastern Province, Saudi Arabia Abstract: Colloid cysts typically reside within the area of the anterior third ventricle, in the proximity of the foramen of Monro. Although they are considered to commonly localize in various parts of the cerebrum, they are exceedingly rare outside the ventricular system and rarely occur within the velum interpositum. We have reported here a rare case of a velum interpositum colloid-like cyst in a 23-year-old man, who presented to our clinic with temporary binocular strabismus, which he had been experiencing for the previous year. In addition, we have briefly reviewed evidence regarding the generation, anatomy, and pathogenesis of colloid cysts, as well as the management options for such rare cases. The present report is only the third to describe a colloid-like cyst located within the velum interpositum, providing additional data that may aid in elucidating the pathogenesis of these neoplasms. Keywords: colloid cyst, computed tomography, magnetic resonance imaging, velum interpositum, third ventricl

Validity and reliability of Hallux Valgus angle measured on digital photographs

STUDY DESIGN: Controlled laboratory study. OBJECTIVES: To investigate the reliability and concurrent validity of photographic measurements of hallux valgus angle compared to radiographs as the criterion standard. BACKGROUND: Clinical assessment of hallux valgus involves measuring alignment between the first toe and metatarsal on weight-bearing radiographs or visually grading the severity of deformity with categorical scales. Digital photographs offer a noninvasive method of measuring deformity on an exact scale; however, the validity of this technique has not previously been established. METHODS: Thirty-eight subjects (30 female, 8 male) were examined (76 feet, 54 with hallux valgus). Computer software was used to measure hallux valgus angle from digital records of bilateral weight-bearing dorsoplantar foot radiographs and photographs. One examiner measured 76 feet on 2 occasions 2 weeks apart, and a second examiner measured 40 feet on a single occasion. Reliability was investigated by intraclass correlation coefficients and validity by 95% limits of agreement. The Pearson correlation coefficient was also calculated. RESULTS: Intrarater and interrater reliability were very high (intraclass correlation coefficients greater than 0.96) and 95% limits of agreement between photographic and radiographic measurements were acceptable. Measurements from photographs and radiographs were also highly correlated (Pearson r = 0.96). CONCLUSIONS: Digital photographic measurements of hallux valgus angle are reliable and have acceptable validity compared to weight-bearing radiographs. This method provides a convenient and precise tool in assessment of hallux valgus, while avoiding the cost and radiation exposure associated with radiographs

Quedas em idosos institucionalizados: características gerais, fatores determinantes e relações com a força de preensão manual Falls in institutionalized elderly people: general characteristics, determinant factors and relationship with handgrip strength

OBJETIVO: Identificar a ocorrência de quedas em idosos institucionalizados no Município de São Carlos (SP), descrever os fatores determinantes e verificar sua associação com a força de preensão manual. MÉTODOS: Participaram do estudo 61 idosos institucionalizados (31 homens e 30 mulheres) que foram avaliados quanto à força de preensão manual e entrevistados quanto a eventos de queda e possíveis fatores determinantes. RESULTADOS: Verificou-se que 54,1% haviam sofrido pelo menos uma queda no ano que antecedeu a entrevista e que a incapacidade de assistir televisão possui correlação significativa com o índice de quedas (p=0,05), ao contrário das demais atividades funcionais estudadas (deambular, tomar banho e sentar sem auxílio), dor e doenças. Foram encontradas diferenças estatisticamente significantes entre as médias de idade dos idosos que já haviam caído (76,76 anos, ±9,17) e dos que não haviam caído (71,05 anos, ±8,67); e entre as médias de força de preensão manual de idosos que já haviam caído (19,37 kgf, ±8,92) e dos que não haviam caído (25,45 kgf, ±12,14). A análise de variância não mostrou diferença no número de quedas sofridas entre homens e mulheres. CONCLUSÕES: Houve alta incidência de quedas em idosos institucionalizados no município estudado, sendo que os idosos com menor força de preensão manual, os mais velhos e os incapazes de assistir televisão se mostraram mais propensos a sofrer quedas.<br>OBJECTIVE: To identify the occurrence of falls among institutionalized elderly in São Carlos City, to describe its determining factors and to verify its relationship with handgrip strength. METHODS: 61 elderly subjects (31 men and 30 women) took part of the study, being assessed regarding handgrip strength and interviewed regarding falls and possible factors for its occurrence. RESULTS: It was found that 54.1% of the elderly had fallen at least once in the 12 months preceding the study. The disability of watching television presented a significant correlation with falls (p=0.05), in contrast to other functional activities studied (walk, take shower and seat independently), pain and diseases. Statistically significant differences were found between the mean age of the elderly who had fallen (76.76 years, ±9.17) and those who hadn’t fallen (71.05 years, ±8.67); and among grip strength of those who had fallen (19.37 kgf, ±8.92) compared to the ones who hadn’t fallen (25.45 kgf, ±12.14). The variance analysis didn’t show differences in the number of falls between men and women. CONCLUSIONS: The incidence of falls among institutionalized elderly in São Carlos City is high and the individuals who were more likely to suffer falls were the older and weaker ones, as well as those unable to watch television