A 4-month-old female infant was brought to our office by her parents, who had noticed a lump on the child's right elbow. Examination revealed a hard, painless lump in the antero-external region that was not reducible in flexion-extension or in pronation-supination. Neither palpation nor passive motion produced pain. Preoperative radiographs revealed a bony mass in the anteroexternal region of t...

Fractures of the distal radius are among the most common injuries of the upper extremity, though treatment has traditionally focused on restoration of the radiocarpal joint and late sequelae may persist. X-ray imaging underestimates sigmoid notch involvement following distal radius fractures. No classification system exists for disruption patterns of the sigmoid notch of the radius associated w...

There is a paucity of information in the literature regarding the quadrate ligament and the information that does exist is extremely conflicting. We dissected 30 cadavers (60 sides) to determine the morphology and function of this enigmatic ligament. A quadrate ligament (thickening of the elbow joint capsule) was found in all specimens. In all specimens this band was distinct from the circumfer...

Congenital radioulnar synostosis is a rare disorder resulting in the fusion of the radius and ulna from birth. Management is conservative. Operative treatment rarely succeeds.

BACKGROUND Some cadaveric studies have reported the role of the distal oblique bundle (DOB) in the distal radioulnar joint stability. We aimed to determine whether the presence of the DOB can be identified and its thickness can be measured in magnetic resonance imaging (MRI) examinations. METHODS We retrospectively reviewed 468 wrist and forearm MRIs. Inclusion criteria were wrist or forearm ...

Beutler, E., and Baluda, M. C. (1966). Improved method for measuring galactose-l-phosphate uridyl transferase activity of erythrocytes. Clinica Chimica Acta, 13, 369-379. Federhol, M. K. (1969). Quantitative studies on the inherited variants of serum alpha-l-antitrypsin. Scandinavian Journal of Clinical and Laboratory Investigation, 23, 97-103. Lejeune, J., Berger, R., Lafourcase, J., and Retho...

This report concerns a de novo reciprocal translocation between the long arms of the chromosomes 12 and 19 in a mentally retarded child with bilateral radioulnar synostosis, agenesis of the corpus callosum, and several minor congenital malformations.