3. Congenital deficiencies
the first trimester is the most crucial trimester for the genesis of limb
production. Congenital limb deficiency occurs as a result of failure of
formation of part or all of the limb bud.
maternal diabetes, and gestational diabetes.
Acquired deficiencies
the most common causes of acquired amputations are trauma and
disease
Osteogenic sarcoma, Ewing’s sarcoma, and the rare rhabdomyosarcoma
are responsible for the majority of tumors resulting in amputation.
4.
5.
6. Digital Deficiencies
Moebius syndrome often affects the sixth and seventh cranial nerves,
which compromises the child’s ability to visually follow objects, swallow,
and communicate.
Poland syndrome involves a partial absence of the ipsilateral pectoralis
muscle and hypoplastic chest.
polydactyly and syndactyly.
7. Amputation with more proximal residual limb.
tend to be more easily fit with a prosthesis.
Amputation with less proximal residual limb.
the amount of length available for contact with the prosthesis is limited.
If prosthetic intervention is not attempted or accepted, bimanual tasks will be
performed via grasping of objects in the cubital fold, between one’s legs, in the
axilla region, or under the chin.
8. the child has fewer options to assist in pre-positioning the distal limb in space and
experience more limited pronation and supination for functional tasks of the
prosthesis.
the child relies solely on the muscles and ROM of the shoulder complex.
Transhumeral Deficiencies lead to a shorter limb that potentially is less functional
and amendable to prosthetic fitting.
9. It becomes increasingly difficult to restore the functions of the anatomic
arm as the level of deficiency reaches the shoulder and higher with
current technology.
the axilla will be used to assist these individuals to grasp and manipulate
objects.
If the child has unilateral limb deficiency, the contralateral non-involved
limb will be or become the dominant side.*
When the child has bilateral deficiencies at the shoulder level, the child
will be strongly encouraged to use the feet to grasp and manipulate
objects.
10. In general, the higher the limb absence, the less likely it is that a child will find a
prosthesis useful enough to wear it regularly.
Prostheses are generally considered around 3 to 6 months of age.
the age chosen because it was the time the child was expected to have achieved
sitting balance and to begin to engage in bimanual tasks.
12. Longitudinal Deficiency of the Fibula
a completely absent fibula
a foreshortened tibial section
Syme amputation,
Amputation takes place when the child is beginning to pull to
stand and cruise with the assist of furniture or toys to time.
Boyd amputation, serves to centralize the heel pad
more effectively.
14. If the amount of lengthening necessary is unattainable, the limb lengthening
may be performed in conjunction with appropriately timed epiphysiodesis of the
contralateral leg to equalize leg lengths at full maturity.
All of the limbs present with some degree of hip flexion, abduction, and external
rotation.
15.
16.
17. When there is a complete absence of the tibia, the treatment of choice is
disarticulation at the knee.
If the tibial segment is short, the surgeon creates a synostosis with the
intact fibula in conjunction with amputation of the foot.
If the heel pad is retained, this procedure will create a walking surface for
the child, providing stability without a prosthesis.
18. Parental and child understanding of the proper utilization of these
devices.
It is difficult to instruct the young active child in specific exercises and
positioning due to limited comprehension and attention span.
Play is the primary motivation for desired movements and activities.
19. The goal of physical therapy is to develop a normal pattern of gait, including
stride length, step length, and velocity.
The prosthesis should incorporate these same features in order to allow for
normal gait development.
20. 20 months the normal child can stand on one foot
with help.
3 years on one foot momentarily
4 years for several seconds
The normal child does not establish heel-to toe gait until about 2 years of age.
at 5 years for longer period
21. Strengthening both agonists and antagonist muscles about the joint is
important.
As long as children have arms with which to balance, they should be
expected to walk independently.
Prone positioning is important for encouraging trunk extension and
mobility.
22. The aim is to increase the child’s awareness of the affected side, including the
prosthetic device.
The child should also be encouraged to use the prosthesis for transitional
movements, such as sitting to crawling, and leaning on the prosthesis for weight-
bearing while reaching with the dominant hand.
23. The child with an isolated limb deficiency or amputation is capable of
achieving age-level academic skills.
The philosophy promoted for children with physical disability is that of
“participation, not observation.”
Editor's Notes
The proximal radius in shorter residua is often unstable, subluxing anteriorly during full extension, giving the appearance of hyperextension of the elbow.
That’s n0t a transhumeral amputation
*for grasping, with manipulation taking place between the knees, in the mouth, or trapped between chin and chest or chin and shoulder.
Early prosthetic fitting is designed to encourage bimanual tasks, establish a wearing pattern, increase overall independence, provide for symmetrical crawling, and reduce “stump dependence”
The procedure involves rotation of the foot 180 degrees through removal of the distal femoral and proximal tibial epiphyses. rotated foot can now act as a knee, utilizing ankle dorsiflexion as knee flexion and ankle plantar flexion as knee extension.
To avoid increasing the patient’s anxiety level, the therapist should not dwell on phantom pain but the patient should be made aware of the normal postoperative discomfort that is to be expected.
Parents and children should be trained in desensitization and scar mobilization of the residual limb. For children with amputations secondary to tumors, returning to school remains a difficulty.
Each child must be assessed as an individual, with consideration given to the child’s age (both developmentally and chronologically), physical abilities, interests, and activities.
Because the goal of physical therapy is symmetry of posture and movement during developmental activities, proper alignment, controlled weight shifting, and balance activities are emphasized for children with lower limb prostheses.
Gross motor milestones are generally not delayed, but may be affected by asymmetry imposed by unilateral upper limb deficiencies.
Children compensate and substitute for the missing action of limbs.
The parent is encouraged to maintain contact with the therapist to answer questions regarding follow-through with prosthetic usage.
Outcomes related to patient satisfaction are increasingly important to evaluate for prosthetics. Recent studies have indicated that children with unilateral, below-elbow deficiencies who do not wear prostheses perform as well as or better than their counterparts who wear prostheses.