ArticleBone & joint open2026
HipScreen: a valid mobile app to measure hip migration in children with cerebral palsy in the community setting.
Article in Bone & joint open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
22 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Aims: The Reimers migration percentage (MP) is the gold-standard radiological parameter used to aid decision-making regarding surgical management of hip displacement in cerebral palsy (CP). Accurate measurement is important to risk stratify patients and allow timely onward referral from community teams to paediatric orthopaedic services. We performed a study to determine whether experts and novices could use a free smartphone app (HipScreen (HS) app) as a valid method for measuring MP in CP. Methods: Using the HS app, two groups measured MP in 20 pelvis radiographs (40 hips) at weeks 0 and 2. The 'inexperienced' group included four community physiotherapists with no CP experience. The 'experienced' group included four community physiotherapists and two paediatricians with CP experience. All participants watched the tutorial videos on the HS app website. HS app measurements were then compared with gold-standard picture archiving and communication system (PACS) measurements conducted by a senior paediatric orthopaedic surgeon. Modified Pearson correlation (r) was used to determine inter-rater reliability between HS app and PACS measurements. Intraclass correlation coefficient (ICC) was then used to assess intrarater reliability. The mean absolute deviation (MAD) was calculated to compare raters with the gold standard. Results: HS app measurements in the experienced and inexperienced groups showed highly significant correlation with the gold-standard measurements (p < 0.001). There were no significant differences between intra- or inter-group measurements at weeks 0 and 2 with Conclusion: The HS app is accurate in measuring MP in CP when used by non-specialists and specialists. Non-specialists do not require additional supplementary training. These findings suggest app efficacy and safety in regional and national hip surveillance programmes for children with CP.
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.