PEDI | Musculoskeletal & Neuromuscular
https://statstitch.etsy.com The Core Philosophy: Physiology Drives Care The central theme across all sources is that children are not just "small adults." Their anatomy dictates specific risks and interventions: • The Growth Plate (Physis): This is the weakest point of long bones. Injury here can stunt growth, making Salter-Harris fracture classifications critical knowledge. • Healing Speed: A child’s thick periosteum and rich blood supply mean bones heal much faster than in adults, necessitating rapid alignment (often non-surgical) to prevent malunion. • Myelinization: The nervous system is incomplete at birth. Voluntary control proceeds cephalocaudal (head-to-toe) and proximodistal (center-to-out). Deviations from this sequence or the persistence of primitive reflexes often signal disorders like Cerebral Palsy. The "Vital Sign" of Orthopedics: Neurovascular Assessment For any child in a cast, traction, or with a fracture, the nurse's priority is preventing Compartment Syndrome. • The 5 P's: Pain (out of proportion/unrelieved by meds), Pulselessness, Pallor, Paresthesia, and Paralysis. • Intervention: Elevate the limb and report "positive" findings immediately—this is a medical emergency. Major Clinical Profiles (The "Big Few") 1. Neural Tube Defects (Spina Bifida/Myelomeningocele) • Prevention: Maternal folic acid is the only known prevention. • Acute Care: Keep the sac moist and sterile; position the infant prone (on stomach) to prevent rupture before surgery. • Long-term: Assume Latex Allergy (high risk due to multiple exposures) and manage neurogenic bladder (catheterization). 2. Cerebral Palsy (CP) • Nature: A non-progressive brain injury causing permanent motor impairment. • Management: Focus on maximizing mobility and preventing contractures. Spasticity is managed with Baclofen (oral/pump) or Botulinum toxin injections. • Key Sign: Persistent primitive reflexes or scissoring legs. 3. Muscular Dystrophy (Duchenne) • Nature: X-linked recessive (boys), progressive muscle wasting starting in legs. • Key Sign: Gower Sign (using hands to "walk" up legs to stand). • Priority: Cardiopulmonary function is the life-limiting factor; prevent respiratory infection. 4. Hip & Foot Disorders • DDH (Dysplasia of the Hip): Screen infants using Ortolani and Barlow maneuvers (listen for the "clunk"). Treatment is the Pavlik Harness (worn continuously) for infants <6 months. • Clubfoot: Requires serial casting beginning immediately after birth (Ponseti method). • SCFE (Slipped Capital Femoral Epiphysis): Occurs in adolescents (often obese) presenting with a limp or groin pain. Immediate non-weight bearing is required to prevent femoral head necrosis. Trauma & Red Flags • Scoliosis: Bracing is the primary intervention for moderate curves (25–45 degrees). Compliance (wearing it 18–23 hours/day) is the biggest hurdle due to body image issues. • Osteogenesis Imperfecta: "Brittle bone disease." Never pull legs by ankles or lift under armpits; requires extremely gentle handling to prevent fracture