A New Method for Determination of Torsion of the Femur

Femoral Neck Angles in Osteoarthritis of the Hip

“…The patients were examined by the method described by Dunlap et al (1953) (1955). This method requires a certain range of flexion and abduction of the hip joints.…”

Version of Femoral Neck: A Cadaveric Dried Bone Study

“…The source of variation may be the precise location of the central axis (Jain et al, 2003). Researchers have examined the average anteversion in a normal population by direct observation on dry bones, and found it has a wide range from -25 degrees to + 50 degrees in adults, with a mean FNA from 8-28º (Dunlap et al;Kingsley & Olmsted;Maheshwari et al, 2004;Srimathi et al, 2012;Zalawadia et al, 2010). Kingsley & Olmsted reported the mean FNA as 8.021 degrees, whereas the mean determined by the KO method in our study was 16.21 degrees, which is not close to that of the Kingsley & Olmsted report.…”

“…In postnatal development, a reduction of the FNA usually occurs during growth Fabeck et al, 2002). Between 3 and 12 months of age, the FNA average value is 39 degrees reaching a value close to 16 degrees at adult life (Dunlap et al, 1953). The FNA has important implications in various corrective osteotomies as well as in hip arthroplasties (Shrikant et al, 2009).…”

Osteometría-escapulometría glenohumeral en las inestabilidades anteriores recidivantes de hombro: Estudio etiopatogénico de uno de los estabilizadores estáticos mediante tomografía computarizada

“…Encontró que la mayor retrotorsión humeral en primates es compensada por la fuerza de los músculos estabilizadores horizontales y un IGHH aumentado 4 . Debevoise y col 48 y Dunlap y col 49 introdujeron el cálculo de los ángulos corregidos, estableciendo un ángulo de torsión humeral normal de 61,2º (47º-85º) y de 76,5º (63º-104º) en pacientes afectos de LRH. Se ha demostrado una alta correlación entre Rx y TAC en la determinación de la RH, no encontrando diferencias entre sexos.…”