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Related Concept Videos

Anatomical Positions01:11

Anatomical Positions

In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...

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A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
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Helmet versus active repositioning for plagiocephaly: a three-dimensional analysis.

Angelo B Lipira1, Shayna Gordon, Tron A Darvann

  • 1, Division of Plastic and Reconstructive Surgery, Washington University School of Medicine, 660 S Euclid Ave, Box 8238, St Louis, MO 63110, USA. lipiraa@wusm.wustl.edu

Pediatrics
|September 15, 2010
PubMed
Summary

Orthotic helmets significantly improved head symmetry in infants with deformational plagiocephaly (DP) more than active repositioning. This 3D analysis quantified helmet therapy

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Area of Science:

  • Craniofacial development
  • Pediatric orthopedics
  • Medical imaging analysis

Background:

  • Deformational plagiocephaly (DP) is commonly treated with orthotic helmets or active repositioning.
  • Current evidence is insufficient to guide treatment decisions.
  • Objective outcome data is needed to compare these interventions.

Purpose of the Study:

  • To compare the efficacy of orthotic helmets versus active repositioning for treating DP.
  • To utilize 3D whole-head asymmetry analysis for objective outcome quantification.

Main Methods:

  • 3D surface scans of 70 infants with DP were analyzed before and after treatment.
  • Infants were matched for initial deformity severity.
  • A novel 3D asymmetry analysis quantified changes in head shape.

Main Results:

  • The orthotic helmet group showed a statistically significant greater reduction in both maximum (4.0% vs 2.5%) and mean (0.9% vs 0.5%) head asymmetry compared to the active repositioning group.
  • The occipital region exhibited the most significant improvement with helmet therapy.

Conclusions:

  • 3D whole-head asymmetry analysis effectively quantifies treatment outcomes for DP.
  • Orthotic helmets demonstrated statistically superior immediate results in improving head symmetry compared to active repositioning.
  • Further research is required to determine clinical significance and long-term efficacy.