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Learn about the assessment, management, and treatment of various lower limb conditions in children, including knock knees, leg length inequalities, and femoral deficiencies. Understand the importance of measuring Vitamin D levels and detecting infections early. Follow the guidelines for hip examinations and screening policies to ensure proper care from infancy to early childhood. Utilize Ponseti's method for clubfoot treatment and know when to refer for further evaluation. Stay informed on decision-making processes and outcomes to provide the best orthopedic care for pediatric patients.
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Knock knees • Inter-malleolar distance • Mechanical axis • Measure both with tape measure • Consider rickets • Indications ? • Mechanical axis lateral to tibia • Anatomic axis > 15 degrees
Knock knees: management • Guided growth • V expensive plate • Cheaper screws
Vitamin D Measure Vitamin D level in children with aches and pains before referral Low Vitamin D is a potent cause of musculo-skeletal pain 40% of attendees at paedorthop clinic either deficient or insufficient Normal > 50 nmol/L Insufficient < 50 nmol/L Deficient < 25 nmol/L
Septic arthritis v irritable hip • Decision trees common • History of fever > 38o • Non weight bearing • WCC > 12,000 • ESR > 40 Kocher et al. J Bone Joint Surg Am. 1999 Dec;81(12):1662-70.
Decision analysis • One predictor 0.2% • Two predictors 40% • Three predictors 93% • Four predictors 99%
Outcome Resolution
Outcome Tom Smith Arthritis Life long disability
What tests; Neonates • Ortolani reduction clunk (1936) • “segno del scotto” • Barlow test (1966) • Le Damany (1912) • “signe de ressaut”
When ? Old Guidelines • At birth (but many lax) • In first 2/52 • At 6 – 8 weeks (last chance for O/B+) • At 3 months ? • At 6 – 9 months (required by guidelines but ? useful) • 15 - 21 months
Examination at 3 months • Instability unlikely • Limited abduction important • Asymmetric skin creases caused by Nestle • LLD difficult to judge • If in doubt USS at hip instability
Ponseti’s method : Splintage • Boots on bar External rotation splintage • 70 degrees ER • Full time 2 - 4 months • Night 2 - 4 years
Leg Length Inequality • Use Galleazzi sign for measurement in infants • No need to refer small children unless gross discrepancy or concern about hips
Femoral deficiencies • Spectrum • Congenital short femur • PFFD • 1 in 50-200,000
What we’re doing • Central referral place “dummy clinic” • Website for advice and simple treatment • Leaflets • Videos • More advice and guidance • Send back referrals for normal variants