• Publications
  • Influence
On the use of a pilot sample for sample size determination.
  • R. Browne
  • Mathematics, Medicine
  • Statistics in medicine
  • 15 September 1995
To compute the sample size needed to achieve the planned power for a t-test, one needs an estimate of the population standard deviation sigma. If one uses the sample standard deviation from a smallExpand
  • 415
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Brace wear control of curve progression in adolescent idiopathic scoliosis.
BACKGROUND The efficacy of brace treatment for patients with adolescent idiopathic scoliosis remains controversial, and effectiveness remains unproven. We accurately measured the number of hours ofExpand
  • 152
  • 12
Measurement of scoliosis and kyphosis radiographs. Intraobserver and interobserver variation.
Interobserver variations for measurements of the Cobb angle on radiographs of patients who had kyphosis were comparable with those on the radiographs of patients who had scoliosis. Four staffExpand
  • 411
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The Lateral Pillar Classification of Legg‐Calve‐Perthes Disease
To determine the predictive value of a new classification system for Legg-Perthes, 93 hips in 86 patients with radiographic follow-up to maturity were reviewed. All patients were treated by bracingExpand
  • 238
  • 9
The Impact of the Current Epidemiology of Pediatric Musculoskeletal Infection on Evaluation and Treatment Guidelines
Background: Methicillin-resistant Staphylococcus aureus is thought to have led to an increase in the incidence of severe musculoskeletal infection in children. Our purpose was (1) to compare theExpand
  • 176
  • 9
A Comparison Between the Boston Brace and the Charleston Bending Brace in Adolescent Idiopathic Scoliosis
Study Design. The authors studied 319 patients with adolescent idiopathic scoliosis treated at the same institution with either a Boston brace or a Charleston bending brace. Objectives. To determineExpand
  • 138
  • 9
Pulmonary function following early thoracic fusion in non-neuromuscular scoliosis.
BACKGROUND While early spinal fusion may halt progressive deformity in young children with scoliosis, it does not facilitate lung growth and, in certain children, it can result in thoracicExpand
  • 296
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Maturity assessment and curve progression in girls with idiopathic scoliosis.
BACKGROUND Scoliosis progression during adolescence is closely related to patient maturity. Maturity has various indicators, including chronological age, height and weight changes, and skeletal andExpand
  • 178
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The Prevalence of Back Pain in Children Who Have Idiopathic Scoliosis*
A retrospective study of 2442 patients who had idiopathic scoliosis was performed to determine the prevalence of back pain and its association with an underlying pathological condition. Five hundredExpand
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Stability of external circular fixation: a multi-variable biomechanical analysis.
OBJECTIVE: To determine how the manipulation of the parameters of fixation and components of the circular external frame could improve and maintain optimal stability of bone fragments. DESIGN: WeExpand
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