Angular measurement error due to different measuring devices.

Background: Angular measurements are commonly used in orthopaedic surgery. No study has addressed measurement variability due to the measurement device itself. It was the purpose of this study to assess measurement variability of articulated versus fixed devices.

Valgus slipped capital femoral epiphysis.

Slipped capital femoral epiphysis (SCFE) is a posteromedial displacement of the epiphysis on the metaphysis. Superolateral displacement of the epiphysis, the valgus SCFE, was first described by Müller, although some authors question its existence. We report 4 additional cases and review the literature regarding valgus SCFE.

Leg length discrepancy in unilateral congenital clubfoot following surgical treatment.

Length discrepancy secondary to limb hypoplasia has been described as an associated finding in patients with unilateral clubfoot. In this manuscript we bring attention to limb length discrepancy as a result of surgical treatment in unilateral clubfoot. Three patients who underwent extensive posterior, medial and lateral release were noted to have an average discrepancy in foot height of 2.

Interobserver variability of gait analysis in patients with cerebral palsy.

In this study 11 ambulatory patients (mean 10.8 years) with spastic cerebral palsy were each evaluated with instrumented gait analysis at four different centers. After review of the data, each medical director chose from a list of treatment options.

Varus derotation osteotomy for the treatment of hip subluxation and dislocation in cerebral palsy: statistical analysis in 73 hips.

The purpose of this study is to review the results of varus osteotomy in patients with cerebral palsy and to determine factors that influence the rates of residual hip displacement. A retrospective chart review of 65 patients who underwent 79 varus osteotomies was performed. Preoperative, postoperative and follow-up radiographs were analyzed for routine radiographic measurements, pelvic obliquity, osteonecrosis (avascular necrosis), joint incongruity or degenerative joint disease.