Paediatric therapists play a key role in the management of movement problems. Physiotherapy, and sometimes occupational therapy, is essential to provide a program to encourage motor development. Therapy is also necessary to implement the other strategies discussed below.
- Orthoses(sometimes known as braces) are used by many children for the lower limbs at some stage in their development. These are custom made and individually fitted for each child from a combination of materials including high temperature plastics with velcro closures.
- Upper limb splints are sometimes made by an occupational therapist to maintain range of movement, facilitate better grasp and improve overall function of the arm and hand. These splints, usually of plastic material, are individually made for each child. Over recent years, a technique of splinting with dynamic lycra splints has been developed. These splints are often called 'second skin'. 3. Plaster castsare sometimes applied to lower limbs to stretch the calf muscles, and to improve the position of the foot during walking. The casts are changed every one to two weeks, the child walks in the plasters, and generally the plasters remain in use for about six weeks. These plasters are sometimes called 'inhibitory casts'.
- Botulinum toxin A('Botox') is used as a treatment for tight or spastic muscles, most commonly when tightness in the calf or hamstring muscles is interfering with progress in learning to move, although it is increasingly being used in other parts of the body including the upper limbs. A light anaesthetic is required for the injections. There may be some temporary mild pain at the injection site but other side effects are uncommon. Botox can reduce spasticity and provide a period of more normal muscle growth and development, which may be accompanied by progress in the child’s movement abilities. Disadvantages include the fact that the administration of Botox involves injections; the effects of the drug are not completely predictable and are of short duration; and the toxin is costly.
- Oral medicationsfor spasticity include Diazepam, Dantrolene and Baclofen. These medications are often not effective or may cause too many unwanted effects. Hence they are prescribed relatively infrequently.
- Diazepam ('Valium') is a good medication for spasticity, but may cause sedation. However it is useful following surgery, particularly orthopaedic procedures.
- Dantrolene ('Dantrium') may be helpful, but can rarely cause liver problems. It may also cause drowsiness, dizziness and diarrhoea.
- Baclofen ('Lioresal') is said to be more useful in spasticity due to spinal lesions than in spasticity due to cerebral lesions. However, it is often used in children with severe spasticity. Side effects are uncommon but may include nausea. It is reported to aggravate seizures though this is a rare problem.