ArticleBMC musculoskeletal disorders2025
Prospective video-based analysis of coronal lower limb alignment may be as accurate as radiography in children.
Article in BMC musculoskeletal disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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.
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Who cites it
1 citing paper in PubMed.
- Angular and Rotational Lower Limb Alignment Variations in Children: Practical Guidance for Paediatricians.Medicina (Kaunas, Lithuania) · 2026Review
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Authors and funding
7 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Temporary hemiepiphysiodesis is a growth-guided surgical technique to address lower limb malalignment in children with remaining growth potential. It is a minimally invasive approach that relies on full standing radiography of the lower limb, resulting in exposure to ionizing radiation. Radiation-free, video-based alternative techniques have recently evolved which seem to have potential to be applied in clinical pathways, but they are still very expensive and have a complex setup.In this prospective pilot study, a low budget and uncomplicated method to assess malalignment of the lower limb was compared to radiologic measurements in 40 children aged from 8 to 16 years with idiopathic genu varum or valgum. Dynamic and static video-based assessments of the children were conducted, during their routine visits provided they had undergone full standing radiographs of the lower limb. Measurements of the primary (HKA = hip-knee angle) and secondary knee angles (e.g. medial proximal tibia angle) were compared. It was observed that the video-based hip-knee-ankle angle correlated very closely with radiographic values, as well as a significant positive correlation (p < 0.001) between all techniques (radiographic/dynamic/static). Moreover, the HKA measurements revealed excellent to high inter- and intrarater reliability.Concerning the HKA, this low-budget technique may represent a reliable alternative for longitudinal evaluation of lower limb malalignment in children. Considering the measurement errors in video-based analyses, it may be suggested that radiographic follow-up is only indicated until the target HKA approximates 2°. In summary, this novel technique has the potential to be the first step towards implementing radiation-free setups within clinical routine to evaluate lower limb malalignment. Future studies will need to determine whether the reliability and quality of video-based techniques are high enough to guide operative decision making.
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