Orthopaedics Pediatric Ohopedics 6d30ed0c

All are true about Duchene Muscular Dystrophy Except:-

Swollen Calf is present

Patient uses his own body to climb up.

Distal muscle weakness is seen

Cardiomyopathy and congestive hea failure are seen

High-Yield Explanation

Explanation Proximal muscle weakness is seen Defect in Dystrophin gene (Largest gene in human) Swollen calf - Pseudohyperophy of calf (Fibrous fatty deposit) Gower's sign: -Patient uses his own body to climb up as there is proximal muscle weakness. X-linked recessive (Xp 21) Average life span is 26 years Boys- more common Definitive diagnosis is by muscle biopsy and genetic studies.

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