| Journal: | Revista médica del Instituto Mexicano del Seguro Social |
| Database: | PERIÓDICA |
| System number: | 000335102 |
| ISSN: | 0443-5117 |
| Authors: | Sabag Ruiz, Enrique1 Higuera-Lugo, Cirilo Omar1 Ornelas Aguirre, José Manuel1 Gómez Alcalá, Alejandro V2 |
| Institutions: | 1Instituto Mexicano del Seguro Social, Hospital de Especialidades 2, Ciudad Obregón, Sonora. México 2Instituto Mexicano del Seguro Social, Coordinación de Investigación en Salud, Ciudad Obregón, Sonora. México |
| Year: | 2009 |
| Season: | May-Jun |
| Volumen: | 47 |
| Number: | 3 |
| Pages: | 271-276 |
| Country: | México |
| Language: | Español |
| Document type: | Artículo |
| Approach: | Analítico |
| Spanish abstract | Objetivo: estandarizar ultrasonográficamente el área de corte transversal del nervio mediano (ACTNM) a nivel del túnel del carpo, según sexo, actividad manual cotidiana y mano dominante. Métodos: estudio transversal comparativo de 50 mujeres y 50 hombres sanos. Se realizó ultrasonografía de ambas muñecas con cortes transversales en túnel del carpo y se midió ACTNM. Se registró sexo, mano y grado de actividad manual cotidiana. Se utilizó estadística descriptiva, percentil noventa (p90) y pruebas U de Mann-Whitney o Kruskal-Wallis. Resultados: ACTNM en mujeres de 0.063 ± 0.015 cm²; en hombres de 0.072 ± 0.018 cm² (p < 0.004). En mujeres, ACTNM de 0.062 y 0.060 cm² en mano derecha e izquierda (p90 en ambas manos de 0.084 cm²); en hombres de 0.070 y 0.069 cm² en derecha e izquierda (p90 en ambas manos de 0.097 cm²); la diferencia entre sexos fue significativa en cada mano (p < 0.014), pero no entre un lado y otro (p = 0.21). No hubo correlación significativa entre edad y ACTNM, ni entre mayor ACTNM e intensidad del trabajo manual cotidiano. Conclusiones: para población sonorense se propone un ACTNM máximo en hombres de 0.1 cm² y en mujeres de 0.09 cm², sin importar la mano o grado de actividad manual. SUMMARY Objective: to measure the median nerve cross-sectional area (MNCSA) at the carpal tunnel (CT) level by sonography (S) in a Mexican population. Methods: a comparative cross-sectional design study with a non probabilistic sampling with 50 women and 50 men in good health were submitted for measuring MNCSA at the level of the CT. Other variables like sex; side and degree of daily hand activity were also studied. The analysis was made by descriptive statistics, and Mann-Whitney U or Kruskal-Wallis tests. Results: the mean MNCSA was 0.063 ± 0.015 cm², in women; in men it was 0.072 ± 0.018 cm²; the difference was significant (p < 0.004). The median MNCSA among women was 0.062 cm² in the right side and 0.060 cm² in the left (percenti |
| English abstract | Objective: to measure the median nerve cross-sectional area (MNCSA) at the carpal tunnel (CT) level by sonography (S) in a Mexican population. Methods: a comparative cross-sectional design study with a non probabilistic sampling with 50 women and 50 men in good health were submitted for measuring MNCSA at the level of the CT. Other variables like sex; side and degree of daily hand activity were also studied. The analysis was made by descriptive statistics, and Mann-Whitney U or Kruskal-Wallis tests. Results: the mean MNCSA was 0.063 ± 0.015 cm², in women; in men it was 0.072 ± 0.018 cm²; the difference was significant (p < 0.004). The median MNCSA among women was 0.062 cm² in the right side and 0.060 cm² in the left (percentile 90 for both hands of 0.084 cm²); in men, it was of 0.070 cm² in the right hand and of 0.069 cm² in the left (percentile 90 for both hands of 0.097 cm²). The difference between women and men was significant in each side, but not between right and left hands (p = 0.21). There was no correlation between age and MNCSA on either side, or with hand activity. Conclusions: a MNCSA value of 0.1 cm² for men and 0.09 cm² for women is proposed as standard parameter for the Mexican population |
| Disciplines: | Medicina |
| Keyword: | Anatomía humana, Nervio mediano, Síndrome de túnel carpiano, Mano |
| Keyword: | Medicine, Human anatomy, Median nerve, Carpal tunnel syndrome, Hand |
| Full text: | Texto completo (Ver PDF) |
