F Javier Laplaza

Learn More
STUDY DESIGN A cross-sectional radiologic and clinical study of patients with osteogenesis imperfecta. OBJECTIVES To determine whether pulmonary compromise is more closely correlated with scoliosis, kyphosis, or chest wall deformity in the population with osteogenesis imperfecta, and to assess the impact of spinal deformity, chest wall deformity, and(More)
Acute pancreatitis has been documented as a postoperative complication in both the general surgery and orthopaedic literature. The etiology of pancreatitis in the postoperative orthopaedic population is not clear. The purpose of this study was to determine the incidence and possible predisposing factors for acute pancreatitis after scoliosis surgery in(More)
The results in thirty-one patients with cerebral palsy who had a total of thirty-five severely subluxated or dislocated hips were analyzed retrospectively a mean of seven years after open reduction, pelvic osteotomy, varus rotational osteotomy, and femoral shortening. Preoperatively, twenty-two patients had been unable to stand and thirteen had had pain;(More)
Excessive femoral and coxa valga have been reported to be major contributors leading to hip dislocation in patients with cerebral palsy (CP). Femoral torsion angle (FT) and neck-shaft angle (NSA) were measured by the radiographic technique described by Rippstein and Müller in 157 patients with CP (289 hips). Factors associated with the degree of FT and NSA(More)
A consecutive sample of 411 hip roentgenograms in 215 patients with cerebral palsy was evaluated. Femoral anteversion and neck-shaft angles were measured and compared with hip stability indexes to determine which of the two angles is more important in hip instability. The correlation coefficients were higher and statistically significant for femoral(More)
Eighty-six children with cerebral palsy (CP) born as a product of twin pregnancies were studied. Data regarding their co-twins were also gathered. The authors' findings suggest that (1) monozygotic twins have a higher risk of CP than dizygotic twins, (2) twin order at birth does not seem to be a relevant factor in the etiology of CP, (3) mothers less than(More)
BACKGROUND Familial dysautonomia (Riley-Day syndrome) is an autosomal recessive disorder primarily affecting individuals of Ashkenazi Jewish extraction. It affects the autonomic, central, and peripheral nervous systems. Spinal deformity (mainly scoliosis) is the most common orthopaedic problem in patients with familial dysautonomia. The objectives of our(More)
Seventy-seven hips in 61 patients (mean age, 13 years) with slipped capital femoral epiphysis treated with in situ pinning were retrospectively evaluated to determine the frequency and magnitude of epiphyseal growth after pinning. Threaded Steinmann pins, Knowles pins, and cannulated screws were used. Evidence of the epiphysis "growing off" the pins was(More)
Two cases of carpal scaphoid fractures associated with distal radius epiphysiolysis are presented. Only three cases of this unlikely combination were found in the English literature. One of the scaphoid fractures had to be confirmed by bone scan. Conservative treatment after gentle reduction of the radius fracture gave excellent results.