Pediatrics Flashcards
APGAR
Scoring system for perinatal asphyxia, indicator of immediate needs, score is 1-5 Evaluates appearance (blue, pink body/blue extremities, pink), pulse, grimace, activity, respiratory effort
Developmental landmarks
3 months: lifts head up when prone 6 months: rolls over 9 months: sits up 12 months: stands/cruises 14 months: walks 15-18 months: uses words 18-21 months: combines words 21-24 months: three word sentences 36 months: propulsive gait
Splints and braces
Used for 3 months to 3 years, worn at night, naps, as tolerated during the day
Best for positional abnormalities (soft tissue) such as internal/external femoral rotation
Not as effective for osseous deformity (tibial torsion)
Splints and braces are to be worn as much as possible at night and during naps, throughout the day as tolerated
Bar braces
With braces that have a rigid bar connecting the feet, a 15 or 20 degree varus bend should be placed in the bar to prevent subluxation of STJ or MTJ
How long to use splint
If you use a splint following serial plaster casting, use the splint TWICE AS LONG as the total casting time
Ganley splint
First splint designed to treat combined leg and foot disorders
Same indications as denis browne bar (metatarsus adductus, convex pes planovalgus and positional abnormalities of the leg) but also allows FF to RF control
If treating an internal rotation problem, torque bar is placed between the rearfoot plates
If treating an external rotation problem, torque bar is placed between the forefoot plates
Remember that the bar is used on the shorter distance
Adjustments are made simply by bending the bars
Denis-browne bar
Has been used to treat metatarsus adductus, convex pes planovalgus and positional abnormalities of the leg
Originally designed to treat clubfoot
The bar is screwed or riveted on the child’s shoes
Fillauer bar
Same as denis brown bar except it clamps to soles of patient’s shoes
Requires rigid soled shoes for clamp to stay on
Unibar
Same as denis browne bar except it has a ball and socket joint beneath each foot which can be tightened into a varus position to prevent STJ and MTJ subluxation, eliminating the need to bend the bar
Counter rotation system (Langer)
Designed to correct torsional abnormalities of the leg
Functionally the same as the denis brown bar but several hinges allow for greater freedom of motion
Best tolerated splint, allows crawling
Bebax shoe
Used to treat FF to RF abnormalities (metatarsus adductus)
Recommended for use after serial casting of MA but not as the primary correction
Also available is the clubax - a device designed for rearfoot or leg deformities, specifically clubfoot
Standard AFO
Ankle set at 90 degrees
Used in various neuromuscular disorders which may cause equinus (CP, muscular dystrophy)
ALso used to treat drop foot
Osteochondrosis
Epiphyseal ischemic necrosis
A disease of the growth or ossification centers in children which begins as a degeneration or necrosis and is followed by regeneration or recalcification
Blount’s disease
Osteochondrosis of the medial proximal tibial epiphysis
Causes bowing of the legs
Freiberg’s infarction
Osteochondrosis of the metatarsal head
2nd is most common followed by 3rd, 4th and 5th
More common in girls
ROM pain, swelling, thickening of MPJ
Kohler disease
Osteochondrosis of the navicular
More common in boys
Ages 3-6
Often asymptomatic, pain/swelling possible
Navicular becomes sclerotic and flattened (coin on edge or silver dollar sign)
Self limiting, recovery usually takes from 2-4 years
Navicular ultimately resumes normal shape and density
Kohlz’s disease
Osteochondrosis of the primary ossification center of the patella
Leg-Calve-Perthes disease
Osteochondrosis of the femoral head
Occurs between ages 3-12
10% are bilateral
Most common form of osteochondrosis
The younger the child the better the prognosis, due to trauma in 30%
Male:female 5:1
Insidious onset of limping, generalize groin pain, referred pain to the knee
Osgood-Schlatter disease
OSteochondrosis of the tibial tuberosity
More common in boys
Age 10-15
Caused by excessive traction of patellar from the patellar ligament
Symptoms include pain, swelling
Self limiting, treatment is symptomatic
Sever’s disease
Osteochondrosis of the calcaneus (apophysis)
Caused by excessive traction of the achilles tendon
Ages 6-12
More common in patients with equinus
Radiographic diagnosis is difficult, the normal eiphysis can have 2 or more centers (appearing fragmented), irregular borders and is often sclerotic
Treatment: RICE, NSAIDs, rest, eliminate sports, heel lifts, Achilles stretching
Iselin’s disease
Osteochondrosis of the 5th metatarsal base
Buschke’s disease
Osteochondrosis of the cuneiforms
Diaz or Mouchet’s disease
Osteochondrosis of the talar body (usually associated with trauma)
Thiemann’s disease
Osteochondrosis of the phalanges
Lewin’s disease
Osteochondrosis of the distal tibia
Ritter’s disease
Osteochondrosis of the fibular head proximally
Treve’s disease
Osteochondrosis of the fibular sesamoid ***
Renandier’s disease
Osteochondrosis of the tibial sesamoid ***
Congenital dislocated hip
More common in females, breech, first born
Associated with oligohydramnios, torticollis, metatarsus adductus, calcaneal valgus
In older children, limited abduction, asymmetric thigh folds, relative femoral shortening, limp, positive Trendelenberg, externally rotated foot, waddling gait
Best position to prevent dislocation is flexed and abducted (think about Peterson telling the mom to put her baby in a baby holder)
When a dislocation occurs, the femoral head is usually posterior and superior to the acetabulum
Most dislocaitons occur during the first two weeks of birth
Etiology of congenital dislocated hip
Ligamentous laxity
Acetabular dysplasia
Malpositioning (breech, caring babies with hips adducted and extended)
Ortolani’s sign
Baby supine, knees flexed, lift and abduct the thigh 1 at a time
Positive when a palpable click is felt as the foam oral head is entering the acetabulum
O equals already out, positive is popping back in
Barlow’s sign
Baby supine, hips and knees flexed, pressed down and out on knee
Positive when the dislocatable hip becomes displaced with a palpable clunk as the head slips over the posterior aspect of the acetabulum
B equals back, able to dislocate hip backwards
Anchor sign
Asymmetry of thigh and gluteal folds
More folds on dislocated hip side
Galezzi’s sign
While the hips and knees are flexed, a dislocated hip result in all lower knee
Abduction test
Baby supine, hips and knees flexed to 90, abduct the knees to resistance
A dislocated hip will have a limitation of abduction on the affected side
Clubfoot
Talipes equinovarus
Triplane deformity of talipes equinovarus
Ankle equinus
Hindfoot varus
Forefoot adduction
Incidence of clubfoot
1 in 1000 live births Male to female ratio 2:1 50% are bilateral Right foot more common than left Lowest incidence in Asian, highest incidence in Polynesians
Types of clubfoot
Idiopathic: Intrauterine position
Non-idiopathic: Spina bifida, CP, MD, meningitis, post-polio, traumatic, Streeter’s disease
Radiographic evaluation of clubfoot
Kite’s angle: Normal 20-40 degrees, clubfoot 0-15 degrees
Calcaneal inclination angle: Normal 20-25 degrees, clubfoot 17°
Talar head/neck relative to body
Adduction: Normal 10-20 degrees, clubfoot 80-90 degrees
Plantar flexion: Normal 25-30 degrees, clubfoot 45-65 degrees
Serial casting for clubfoot
Begin is soon as possible
Stretching and manipulation prior to cast application
Applied tincture of benzoin to child skin to help under cast Dick
Cast applied with 2 in plaster, long leg cast to prevent it from slipping off, flex knee 75-90 degrees
Mold cast with the foot in the reduced position
Can bivalve the last cast to use as a night splint
Order of reduction of clubfoot deformity in casting
Adduction
Varus
Equinus
Remember AVEnue
When to consider surgical intervention for clubfoot
No improvement with serial casting after 12 weeks
Complications of serial casting for treatment of clubfoot
Metatarsus adductus
Heel varus
Pes planovalgus over-correction
Rocker bottom deformity from too much equinus correction
AVN of the talus or flattening of the talar head
Navicular subluxation dorsally over talus
Timing of soft tissue release for clubfoot
Children 3 months to 12 months in age
Posterior release for clubfoot
Reflect the origin abductor hallucis and plantar fascia
Z plasty of Achilles tendon
Release posterior medial and lateral ankle joint
Release posterior medial and lateral subtalar joint - this releases posterior talofibular and calcaneofibular ligaments
Medial release for clubfoot
Z-plasty posterior tibial tendon
Release tail of the navicular joint - spring ligament and knot Henry are severed
Release entire medial subtalar joint including superficial deltoid ligament
Lateral release for clubfoot
Release interosseous talocalcaneal ligament
Release bifurcate ligament
Release lateral subtalar joint
Timing osseous procedures for clubfoot
1-4 years
Once the child reaches 1-year-old, bony correction of deformity may also be performed along with soft tissue release
Calcaneal osteotomies for clubfoot
All aimed to abduct the forefoot on the rearfoot ( opposite of flatfoot reconstruction)
Lichtblau: Lateral closing based osteotomy to the anterior calcaneus
Evans: Lateral closing based cuboid calcaneal osteotomy
Ganley’s lateral closing based osteotomy of cuboid
Congenital vertical talus
Also and congenital pes planovalgus, reversed clubfoot, Persian slipper, rocker bottom flat foot
Description of congenital vertical talus
Primary dislocation of the navicular dorsally on the neck of the talus which locks the talus in a vertical position
Forefoot is abducted and dorsiflexed at the mid tarsal joint consistent with flatfoot
Calcaneus is in valgus and equinus
RIGIDITY is the hallmark of the deformity
Contracted gastrocsoleus and elongated spring ligament
Incidence of congenital vertical talus
Majority are bilateral
Right more common than left
Often occurs with other congenital deformities, most notably arthrogryphosis
Foot may touch the front of the tibia and birth
Walking is not delayed because it is not painful
Awkward/clumsy gait and difficult shoe gear
Taylor head is prominent on medial plantar aspect of foot and may have a callus over it from bearing most of the body weight
Abnormal subtalar joint facets in congenital vertical talus
Anterior facet is absent
Middle facet is hypoplastic
Posterior facet is malformed and misshapen
Radiographic evaluation of congenital vertical talus
Definitive diagnosis is lateral x-ray and comparing it to a 2nd lateral x-ray with the foot maximally plantar flexed demonstrating that talonavicular joint does not change, fixed deformity
Navicular is not evident radiographically and told the age of 3 so it is difficult to establish it subluxation
Radiographic measurements in congenital vertical talus
Line bisecting talus on lateral x-ray is parallel to tibia
Talocalcaneal angle on AP x-ray is increased usually greater than 40°
Talar neck is hypoplastic, may have hour glass shape, may have flat surface
Navicular articulates with dorsal neck of the talus
Negative Hubscher maneuver
Hubscher maneuver
The Hubscher maneuver (or Jack’s test) is a method of evaluating the flexibility of a pes planus or flat foot type. The test is performed with the patient weight bearing, with the foot flat on the ground, while the clinician dorsiflexes the hallux and watches for an increasing concavity of the Arches of the foot.
Treatment of congenital vertical talus
Closed reduction Open reduction (type of open reduction varies based on age)