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Orthopedic management of the muscular dystrophies
1Children's Hospital Medical Center, Cincinnati, Ohio 45229, USA. tweedo@chmcc.org
Abstract:
Muscular dystrophy is a collective group of inherited, noninflammatory, progressive muscle wasting diseases. The initial pathologic feature is an abnormality in the genetic code for dystrophin or one of its associated glycoproteins, which leads to the various clinical syndromes. Despite minor variations between the different types, all muscular dystrophies have in common progressive muscle weakness, which is best typified by Duchenne muscular dystrophy. The weakness occurs in a proximal to distal direction and can compromise ambulatory status as well as cardiopulmonary function. Additionally, structural soft tissue contractures and spinal deformities may develop from poor posturing secondary to the progressive muscle weakness and imbalance. The rapidly developing scoliosis and its associated pelvic obliquity can even compromise sitting. Recent advances in molecular biology and gene therapy research raise the hope for a cure for muscular dystrophy in the near future. Until that time, however, the role of orthopedic surgeons in treating patients with muscular dystrophy is to preserve or prolong their functional status for as long as possible. This can be achieved by physical therapy, bracing, soft tissue releases for joint contractures, and early stabilization of the spine.
Insights
Muscular dystrophy involves inherited muscle wasting diseases, primarily impacting mobility and cardiopulmonary function. Current orthopedic management focuses on preserving function through physical therapy, bracing, and surgical interventions.
Area of Science:
- Genetics
- Orthopedics
- Neuromuscular Disorders
Background:
- Muscular dystrophy encompasses inherited, progressive muscle wasting diseases.
- The underlying pathology involves genetic abnormalities affecting dystrophin or associated glycoproteins.
- Duchenne muscular dystrophy exemplifies the common progressive muscle weakness seen across types.
Purpose of the Study:
- To outline the clinical manifestations and progression of muscular dystrophy.
- To highlight the role of orthopedic surgeons in managing patients with muscular dystrophy.
- To discuss current and future treatment strategies, including gene therapy.
Main Methods:
- Review of the pathophysiology and clinical presentation of muscular dystrophy.
- Description of common complications such as contractures, scoliosis, and cardiopulmonary compromise.
- Overview of orthopedic interventions including physical therapy, bracing, and surgical stabilization.
Main Results:
- Progressive muscle weakness affects proximal to distal muscle groups, impacting ambulation and respiratory function.
- Scoliosis and pelvic obliquity can develop, compromising sitting ability.
- Orthopedic interventions aim to preserve functional status and prolong independence.
Conclusions:
- While gene therapy offers future hope, current management focuses on maximizing function.
- Orthopedic interventions are crucial for managing progressive weakness, contractures, and spinal deformities.
- A multidisciplinary approach is essential for comprehensive patient care.