Musculoskeletal Conditions in Children Flashcards
Hx in children:
birth age of symptom onset family history recent illness or injury pain profile – Faces Pain Scale-Revised, FPS-R gait deviations, i.e., limping previous interventions preferred sleeping and sitting positions
Torsional conditions:
internal tibial torsion
external tibial torsion
Tibial torsion
measure thigh-foot angle in prone with knee flexed; longitudinal thigh axis and foot angle (FPA).
Internal tibial torsion (ITT)
negative value; prone sleeping or sitting on feet (risk factor)
External tibial torsion (ETT)
positive value; associated with medial knee osteoarthritis, osteochondritis dissecans, Osgood-Schlatter syndrome
Femoral anteversion:
Comparison of proximal and distal reference axes.
Femoral head lies anterior to frontal plane, excessive medial hip rotation
IR= 70-80 degrees
mild
IR 80-90 degrees
moderate
IR=90
severe
How is femoral anteversion measured?
Measure hip rotation in prone, neutral hip, knee 90 degrees
Interventions for Femoral Anteversion
Most not proven effective, e.g., bracing, twister cables, special shoes.
Avoid W-sitting, encourage tailor sitting.
Most cases spontaneous improvement without disability or degenerative arthritis
What does persistent femoral anteversion (10-14 years) indicate?
surgery (derotational osteotomy)
Foot Progression Angle (FPA):
axis of foot and line of progression.
FPA:
Mean(range): +10 degrees (-3 degrees to +20 degrees).
In -toeing FPA -5 to -10 degrees:
mild
In-toeing FPA -10 to -15
moderate
In-toeing greater than -15
severe
Differential dx of in-toeing/out-toeing:
prematurity, difficult birth, delayed motor skills, worsening over time, asymmetry may be signs of spastic diplegia (in-toeing) or Duchenne’s MD (out-toeing.)
Metatarsus Adductus (MTA)
Medial curvature of forefoot, slightly valgus hindfoot
Grade I MTA:
flexible, resolves 4-6 mos
Grade II MTA:
moderately flexible, corrects to midline; Rx: stretching exercises, straight-last shoes
Grade III MTA:
severe, no midline correction; Rx: manipulation, serial casting, corrective shoes; surgery if unresolved by 4 years
Calcaneovalgus
Hindfoot valgus, lateral forefoot curvature, excessive dorsiflexion; resolves spontaneously
Incidence of calcaneovalgus:
bilateral in > 30% of neonates; ‘packaging’ deformity.
Angular condition:
genu varum
genu valgum
Genu varum:
often with ITT, bowlegged and pigeon-toed.
Physiologic genu varum improves after age 2
Red flags in genu varum:
systemic disorders, e.g., Rickets, if developed after age 4 or worsening over time
Different dx in genu varum:
early weightbearing, weight > 95th percentile, African-American, family history; obesity in adolescence.
Tx: observation < 3 yrs; surgery after age 4
Genu valgum:
associated with overweight, out-toeing FPA, awkward gait, flat feet; c/o anterior knee pain, patellofemoral instability, circumduction gait, difficulty running
Secondary impairments in genu valgum or varum:
varum or valgum) with torsional malalignment: knee extensor injuries, ITB syndrome, stress fractures, plantar fasciitis