Developmental delay: A condition in which a child is behind schedule in reaching milestones of early childhood development. This term is often used as a euphemism for mental retardation, which can be less a delay than a permanent limitation of a child’s ability to progress.
- Developmental dislocation of the hip (DDH)
Developmental dislocation of the hip (DDH): The abnormal formation of the hip joint in which the ball at the top of the thighbone (the femoral head) is not stable within the socket (the acetabulum). The ligaments of the hip joint may also be loose and stretched. The degree of instability or looseness varies. A baby […]
- Developmental disorder
Developmental disorder: One of several disorders that interrupt normal development in childhood. They may affect a single area of development (specific developmental disorders) or several (pervasive developmental disorders). With early intervention, most specific developmental disorders can be accommodated and overcome. Early intervention is absolutely essential for pervasive developmental disorders, many of which will respond to […]
- Developmental disorder, specific
Developmental disorder, specific: A disorder that selectively affects one area of development, sparing essentially all other areas of development. For example, dysgraphia is one type of specific developmental disorder. In dysgraphia there is inability to write legibly. Problems in dysgraphia may include fine-motor muscle control of the hands and/or processing difficulties. Sometimes occupational therapy is […]
- Developmental dyspraxia
Developmental dyspraxia: A pattern of delayed, uneven, or aberrant development of physical abilities during childhood development. The physical abilities affected may be gross or fine motor skills. Developmental dyspraxia may be seen alone or in combination with other developmental problems, particularly apraxia or dyspraxia of speech. Treatment is via early intervention, using physical therapy to […]
- Deviated septum
Failure of the nasal septum to be in the center of the nose and divide the nasal passages evenly. Deviation of the nasal septum may be congenital (present at birth) or acquired (occur later). The major problem it causes is airway obstruction. A deviated septum can be corrected with surgery.