Evaluación de la maduración ósea mediante radiografía del carpo en niños y adolescentes afro-colombianos de Puerto Tejada, Cauca, 2007 / Assessment of the skeletal maturation through hand wrist radiographies in Afro-Colombian children, from Puerto Tejada, Cauca, 2007

Introducción: El objetivo del estudio fue determinar la edad por el esqueleto (niveles de maduración ósea) en niños y niñas de ascendencia continental africana (afrocolombianos) de 8 a 14 años de edad del municipio de Puerto Tejada, Cauca. Materiales y Métodos: Investigación de corte transversal; en la cual se tomaron Radiografías de Mano-Muñeca a 80 niños y niñas en las dos manos, aplicando el análisis de Bjõrk. Resultados: El 50% de los participantes fueron de género masculino. El 57% de la muestra se encontró en dentición mixta tardía. De acuerdo al estadío de maduración ósea, el 36.7% se encontró en PP2 (ancho igual de diáfisis y epífisis de la falange proximal del dedo índice); 18.2% en MP3 (ancho igual de diáfisis y epífisis de la segunda falange del dedo medio). El mayor estadío alcanzado por los niños fue MP3cap mientras que las niñas presentaron el máximo estadio de desarrollo Ru, es decir completaron el crecimiento. Discusión: Lamparsky en 1972, García Fernández en 1998, Román en 2002 y Soegiharto en 2008 reportaron variación en la maduración ósea de acuerdo a la raza, coincidiendo con los resultados del presente estudio. Conclusiones: Existen diferencias en el nivel de maduración de acuerdo al género y la raza, observándose que las niñas afrocolombianas maduran más rápido que los niños. Estas diferencias deben ser consideradas durante el diagnostico y el plan de tratamiento ortopedico maxilar, ortodontico y en medicina general.

Introduction: The aim of this study was to determine the skeletal age measurement (stages of skeletal maturity) of African continental ancestry (Afro Colombians) in boys and girls from 8 to 14 years of Puerto Tejada, Cauca. Material and Methods: this cross-sectional study examined X-rays of both hands and wrists obtained from 80 boys and girls using Bjõrks analysis to evaluate the stage of skeletal maturity. Results: 50% of participants were male gender. 57% of the sample was found with late mixed dentition. According to stage of osseous maturity, 36.7% of subjects were classified in PP2 (equal width of diaphysis and epiphyses of the proximal phalanx of index finger); 18.2% in MP3 (diaphysis and epiphyses with the same width of the second half phalanx of finger). The more maturity stage reached by boys was MP3cap while girls showed the highest stage of development Ru, which is complete growth. Conclusions: There are differences in the level of maturation according to the gender and race, observing that the Afro Colombian girls mature faster than boys. These differences must be considered during diagnosis and treatment planning in maxillary orthopedic, orthodontics and general medicine.

Clinical Significance of Cone-shaped Epiphysis and Brachymesophalangia of the Fifth Middle Phalanx in Korean Children with Normal Short Stature / 대한소아내분비학회지

PURPOSE:The cone-shaped epiphyses mid-5 (CSE-5) and brachymesophalagia-5 (BMP-5) are common osseous anomalies. Those are thought to be normal variants. We evaluated the frequency of CSE-5 and BMP-5 and the influence of them on adult height in Korean children with normal short stature. METHODS:We retrospectively reviewed medical records of 322 normal short stature children. Lengths of the fourth (MP-4) and fifth middle phalanx (MP-5) and widths of MP-5 of all children were measured. Two indicies for BMP-5 were used. Index 1 was based upon the ratio of the width to the length of the MP-5. Index 2 was based upon the ratio of the lengths of MP-5 to MP-4. CSE-5 was assessed by visual inspection only. We assessed several clinical parameters as follows; advanced skeletal maturation, z-scores of height, target height (THz) and predicted adult height (PAHz) according to CSE-5 and/or BMP-5. Results:Of the 322 children, 23.6% had BMP-5 (male 19.5%, female 27.4%), 23.6% had CSE-5 (male 13.0%, female 33.3%). The children with CSE-5 and/or BMP-5 were more advanced skeletal maturation than normal fifth finger (0.07+/-1.09 yrs vs -0.23+/-1.34 yrs, P=0.049), lower PAHz (-1.13+/-1.09 vs -0.71+/-1.28, P=0.008), lower PAHz- THz (-0.53+/-1.07 vs -0.14+/-1.30, P=0.013). In male subjects, the PAHz had weak correlation with index 1 (r=-0.26, P=0.001) and index 2 (r=0.27, P=0.001). CONCLUSION:This study suggests that BMP-5 and CSE-5 in Korean children with short stature are one contributable factor for adult height.