Related Experiment Video
Updated: Mar 21, 2026

Assessment of the Efficacy of An Osteopathic Treatment in Infants with Biomechanical Impairments to Suckling
Published on: February 5, 2019
Assessing the Cervical Range of Motion in Infants With Positional Plagiocephaly
Massimiliano Murgia1, Teresa Venditto, Marco Paoloni
1*Physical Medicine and Rehabilitation Unit, Azienda Policlinico Umberto I †Board of Physical Medicine and Rehabilitation, Department of Anatomy, Histology, Forensic Medicine and Orthopedics, "Sapienza" University, Rome ‡Don Carlo Gnocchi ONLUS Foundation, Milan, Italy.
Insights
Infants with positional plagiocephaly often have limited neck movement, particularly active rotation. This study confirms reliable methods for measuring cervical range of motion in these infants.
Area of Science:
- Pediatric physical therapy
- Neonatal development
- Musculoskeletal disorders
Background:
- Positional plagiocephaly is a common condition in infants.
- Limited cervical range of motion may be associated with positional plagiocephaly.
- Reliable measurement methods are needed to assess cervical mobility in infants.
Purpose of the Study:
- To assess active and passive cervical range of motion limitations in infants with positional plagiocephaly.
- To evaluate the reliability of simple measurement methods for cervical range of motion.
- To identify specific patterns of cervical motion limitation in affected infants.
Main Methods:
- Bilateral active and passive cervical rotations and passive lateral flexion were assessed.
- Intertester and intratester reliability were evaluated by two physicians performing repeated examinations.
- One hundred nine infants with positional plagiocephaly were included in the analysis.
Main Results:
- A significant head positional preference was observed (70.7% right, 29.3% left).
- Cervical rotation and lateral flexion measurements demonstrated reliable intra- and intertester agreement.
- Active cervical rotation was the most limited motion, affecting over 90% of patients.
Conclusions:
- Infants with positional plagiocephaly frequently exhibit limitations in cervical active rotation.
- Passive cervical rotations and lateral flexion were also found to be limited in over 60% of patients.
- Simple and reliable methods can effectively assess cervical range of motion limitations in infants with positional plagiocephaly.
Purpose:
To determine if infants with positional plagiocephaly have limitations of active and passive cervical range of motion measured with simple and reliable methods.
Methods:
The examiners assessed bilateral active and passive cervical rotations and passive cervical lateral flexion. Cervical assessment was performed twice by 2 different physicians to assess intertester reliability. To assess intratester reliability the first investigator performed a second examination 48 hours after the first one.
Results:
One-hundred nine subjects were analyzed; 70.7% of the sample had head positional preference on the right, while 29.3% had head positional preference on the left (χ 35.52, P <0.001). Cervical rotations and lateral flexion showed reliable levels of agreement for intra and intertester reliability.
Conclusions:
The most limited range of motion in infants with positional plagiocephaly was cervical active rotation which affected more than 90% of patients. Passive cervical rotations and lateral flexion were limited in more than 60% of patients.
Related Concept Videos
Muscles that Move the Head
The bilateral sternocleidomastoid, or SCM, and the suprahyoid and infrahyoid muscles are significant head flexors. The SCM muscles originate at the sternum and clavicle and attach to the mastoid process of the temporal bone. The SCM contracts bilaterally to bend the head forward, whereas...
Articulations of the Vertebral Column
Anatomical Positions
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
Anatomical Movements
Here are some common anatomical movements:
Flexion and extension motions are in the sagittal (anterior–posterior) plane of motion. These movements take place at the shoulder, hip, elbow, knee, wrist,...
Angle of Twist - Elastic Range
Vertebral Column: Regions and Curvature
Regions of the Vertebral Column
In an adult, the spine is subdivided into five regions: the cervical, the thoracic, the lumbar, the sacral, and the coccygeal region. The spine initially develops as a series of 33 vertebrae; after 20 years of age, the nine bones in the sacral region, five sacral, and four coccygeal bones fuse to form...

