The Journal of Bone and Joint Surgery (American). 2007;89:155-162.
doi:10.2106/JBJS.F.00506
© 2007 The Journal of Bone and Joint Surgery, Inc.
Scoliosis in Patients with Duchenne Muscular Dystrophy
Lori A. Karol, MD
Corresponding author: Lori A. Karol, MD Texas Scottish Rite Hospital,
2222 Welborn Street, Dallas, TX 75219. E-mail address:
lori.karol@tsrh.org
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Introduction
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Despite recent research developments, Duchenne muscular dystrophy remains a
fatal neuromuscular disease, affecting two to three boys in 10,000. It is an
inherited X-linked recessive condition caused by a frame-shift mutation in the
dystrophin gene at the Xp21.2 locus of the X
chromosome1.
Dystrophin is a large cell-membrane protein involved in calcium transport in
the muscle cell. Boys with Duchenne muscular dystrophy have an absolute
absence of dystrophin, leading to deterioration of the muscle cells and
replacement with fibrofatty
tissue2. This is in
contrast to Becker muscular dystrophy, in which less disruptive mutations that
do not result in a frame shift lead to production of variable amounts of a
smaller, genetically abnormal dystrophin
protein3,4.
Duchenne muscular dystrophy is highly suspected in boys who have a markedly
elevated serum creatine phosphokinase level; in two-thirds of such patients,
the diagnosis can be confirmed by genetic testing. Approximately two-thirds of
. . . [Full Text of this Article]

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