Studies have attempted to categorize infant cranial asymmetry in a variety of ways using both observational and quantitative techniques, but none have created a clinical tool that can serve as a treatment guide based on clinical outcomes. In 2006, a research team from Children's Healthcare of Atlanta published the results of a prospective analysis of 224 patients with cranial asymmetries and their treatment outcomes. As a continuation of the previous work, the researchers have identified a plagiocephaly severity scale based on those outcomes to assist medical professionals who treat patients with cranial abnormalities. Our hypothesis is to validate the proposed severity scale that categorizes the clinical presentation and severity of plagiocephaly.Of the 224 patients enrolled, 207 patients were placed in an experimental group and 17 patients who refused treatment were placed in a control group. Digital head shape data were collected. Cross-correlation matrices were computed across variables and regression models resulted in the identification of 5 meaningful variables. A 5-level clinical classification scale was created. Five 1 × 5 analyses of variance were computed to compare each classification level.Four of the 5 analyses of variance identified significant overall effects for classification. A model was developed from the empirical data and the model was tested for accuracy, resulting in 12.1% overall error. The model was validated for both experimental and control groups.The results show that the severity scale is a meaningful outcome-based scale that assists clinicians in developing a treatment plan for treating plagiocephaly. The scale has been validated across a large heterogeneous study sample.

Background/Objective: The development of simple postural stability tests that relate to performance of activities of daily living (ADL) and can be quickly performed in a clinical setting may assist clinicians in determining appropriate wheelchair configurations and postural supports in an efficient manner. The study's purpose was to validate 3 clinical measures of reach-functional reach (FR), reach area (RA), and bilateral reach (BR)-against the performance of ADL tasks.Methods: Two groups of 20 subjects differing by time since spinal cord injury were tested. Three measures of reach-FR, RA, and BR-were recorded with and without permitting compensatory strategies. Subjects also attempted a series of ADL tasks. Group 2 subjects participated in test-retest reliability of the reach measures and to measure reach while using compensatory strategies. Correlation, ANOVA, and linear regression were used for analysis.Results: Regression analysis showed that injury level was a significant predictor of success in performing ADL tasks (%ADL). Significant but not strong correlations were found between %ADL and all uncompensated reach measures. Within Group 2 subjects, compensated FR (r ¼ 0.663) and RA (r ¼ 0.647) were more related to the %ADL score than the uncompensated FR (r ¼ 0.348) and RA (r ¼ 0.305) measurements. BR had the strongest relationship with %ADL scores (P ¼ 0.031) and was the only significant uncompensated reach measurement within the regression analyses.Discussion and Conclusion: While working with clients on seated stability and functional movement, clinicians should be encouraged to incorporate BR tasks because it has the strongest relationship to ADL performance. Researchers interested in studying postural control and stability during functional tasks should consider using uncompensated reach measures.

IntroductionRecently the EOS imaging system (EOS Imaging, Paris, France) has provided advancements in 3D spinal modeling. Advancements include low radiation as well as fast and accurate reconstructed measurements of spinal parameters. There is a paucity of studies analyzing the reproducibility of the EOS Imaging System and the sterEOS software in the production of 3D spinal models for children with adolescent idiopathic scoliosis (AIS). Objectives The purposes of the study were 1) to determine the intraclass correlation (ICC) for both the inter-observer and intra-observer in the measurements of Cobb angles in AP view as well as the Cobb angles in the lateral view; 2) to assess the ICC for inter-and intra-observer in the axial vertebral rotation (AVR) of the apex vertebra; 3) to compare differences of spinal parameters between two examiners and two trials; 4) to determine how long a 3D reconstruction of the spine takes. Methods Bilateral x-ray images of fifteen patients (age: 6 -15 years old, 5 males, 10 females) were retrospectively selected. These EOS images were uploaded into the sterEOS computer program. Within the software, spinal and pelvic parameters were identified manually to construct a 3D model of the spine. The sterEOS software calculates the Cobb angles, angles of lordosis, angles of kyphosis, and the AVRs of the apex vertebra. The 3D modeling was performed independently by two examiners. Each examiner modeled each patient's spine in two spaced out trials. The ICC between inter-and intra-observers were calculated and compared statistically. Results and discussionBoth the inter-and intra-observers showed excellent reproducibility for the Cobb angles in the proximal segment (ICC: 0.72 -0.91), kyphosis (ICC: 0.85-0.92), and lordosis (ICC: 0.82 -0.95). No significant differences were found between angle differences (0.35°to 2.4°). In contrast to the traditional radiography, the sterEOS provides a better high quality view within the sagittal plane. A moderate inter-observer ICC for the Cobb angle in the distal segment (ICC = 0.67) indicates the examiners have to carefully adjust the alignment and vertebrae in 3D rather than in 2D following the automatic computation from the EOS software. The interobserver ICC for the AVR in the lumbar region (0.80) is higher than the thoracic or thoracolumbar region (0.65), but with high differences of AVR (4.0°-6.3°). The average time that two examiners spent per subject ranged from 34.6 to 37.4 minutes. Conclusion and significance EOS provides significantly reliable and accurate spinal modeling in the measurement of children with AIS. Exposure to less radiation as compared to other radiographic modality allows EOS to offer acceptable quality view of the spine in the sagittal and transversal plane. sagittal balance and predictive equations to determine lumbopelvic compensatory patterns (LPCP). These equations are used to guide surgical decision making and technique selection. Although other lumbopelvic compensation equations are available, these have not been compared wi...

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