Normal left hip xray trial#

Although Reimers estimated a standard measuring error of ± 10%, several authors published high inter- and intraobserver reproducibility. He found previous methods such as the Centre Edge angle to be more position dependent and non-linear. Reimers described the Migration Percentage (MP) in 1980 as a tool to measure the extent of femoral head lateralisation. Systematic radiographic and clinical screening allow for planning of preventive surgery preserving both hip coverage and function. Increasing dysplasia will lead to hip joint pain, gait dysfunction, postural dysfunction, scoliosis and perineal hygiene problems. Hip dislocation is present in 15 to 30% of patients with an even higher incidence rate in case of spastic quadriplegia.

Normal left hip xray trial#

Trial registrationĪpproved by the Medical Research Ethics committee of the University Hospitals Leuven ( MP001492).ĭue to femoral anteversion and limited bony remodeling of valgus in the femoral neck combined with both spasticity and weakness, common problems in children with cerebral palsy (CP) include hip dysplasia, progressive hip migration and risk for hip dislocation. These images use lower radiation doses and contain more radiographic information. There is no statistical significant difference between the Migration Percentage measured on conventional supine pelvic radiographs and EOS® standing full-leg radiographs in ambulant patients. A Bland-Altman plot showed acceptable agreement between both measurements without proportional bias. The absolute differences in MP measured on both conventional supine pelvic and EOS® standing full-leg radiographs ranged between − 8 and 6% with an absolute mean difference of 0% (SD ☓.5) and were not statistically significant ( p = 0.99). Seven out of 28 patients were excluded due to insufficient quality of radiographic images. Out of 28 prospectively selected patients we included 21 (42 hips), of which 10 were female, with a mean age of 9.25 years and GMFCS levels of I, II and III.

Patients presenting with CP were prospectively selected from our outpatient follow-up consultation at our institutions CP reference centre and underwent conventional supine pelvic and EOS® standing full-leg radiographs the same day for diagnostic and screening reasons. Our goal was to assess the comparability of the MP measured on low radiation dose EOS® standing full-leg radiographs with that of conventional supine pelvic radiographs. The Migration Percentage (MP) is a radiographic measurement used to describe the extent of femoral head lateralisation on conventional supine pelvic radiographs. During ambulatory follow-up of patients with cerebral palsy (CP) systematic radiographic screening is required firstly to evaluate hip migration and development in the prevention of hip dislocation and secondly to analyse lower limb alignment and leg length.