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Tin Soldiers has been on a mission since 2020 to find people living with Fibrodysplasia Ossificans Progressiva (FOP), one of the world’s most rare conditions, however along the way we have encountered many children living with other musculoskeletal conditions from the rare to the more common. 

FOP incidence rate is 1 in 1,000,000 where Juvenile Idiopathic Arthritis (JIA) is 1 in 1,000.  Each individual is important and our motto is no-one gets left behind.

So what are paediatric musculoskeletal conditions and why is it so important that we find, diagnose and help people living with them.


Musculoskeletal conditions are a broad category of disorders that affect the muscles, bones, joints, ligaments, tendons, and other parts of the musculoskeletal system. These conditions can cause a wide range of symptoms, including pain, stiffness, weakness, and limited mobility.

There are several rare paediatric musculoskeletal conditions that affect children. These conditions are often genetic or developmental in nature.

Here are some examples:

Osteogenesis Imperfecta (OI):

Also known as "brittle bone disease," OI is a rare genetic disorder characterized by fragile bones that break easily. Children with OI may experience frequent fractures and bone deformities.


Juvenile Idiopathic Arthritis (JIA):

Is a chronic autoimmune disease that affects children and adolescents, typically under the age of 16. JIA is characterized by inflammation of the joints, leading to pain, swelling, stiffness, and potential joint damage. The term "idiopathic" means that the cause of the disease is unknown.



This is a genetic disorder that results in dwarfism. Children with achondroplasia typically have short stature, short limbs, and other skeletal abnormalities.


Juvenile Dermatomyositis (JDM):

JDM is a rare inflammatory myopathy that primarily affects children. It causes muscle weakness and skin rashes. Early diagnosis and treatment are essential to prevent complications.


Multiple Hereditary Exostoses (MHE):

This genetic disorder leads to the development of multiple benign bone tumors called exostoses or osteochondromas. These growths can cause pain and limit joint mobility.


Ollier's Disease:

Ollier's disease is characterized by multiple enchondromas, which are benign cartilage tumors that form within the bones. These growths can lead to bone deformities and limb length discrepancies.


Mucopolysaccharidoses (MPS):

MPS refers to a group of rare genetic disorders that result in the accumulation of mucopolysaccharides within cells. This can cause various musculoskeletal problems, including joint stiffness, deformities, and limited mobility.


Spondyloepiphyseal Dysplasia Congenita (SEDC):

SEDC is a genetic disorder that affects the growth of the spine and epiphyses (the ends of long bones). It leads to short stature and skeletal abnormalities.


Metaphyseal Chondrodysplasia:

This is a group of rare skeletal disorders characterized by abnormalities in the metaphysis, the part of the bone near the growth plates. These conditions can lead to short stature and other bone deformities.


Parastremmatic Dwarfism:

Parastremmatic dwarfism is an extremely rare form of dwarfism characterized by severe limb deformities and short stature.


Marfan Syndrome:

While not extremely rare, Marfan syndrome is a genetic connective tissue disorder that can affect children. It can lead to a range of musculoskeletal issues, including joint hypermobility and skeletal abnormalities.


Arthrogryposis Multiplex Congenita (AMC):

AMC is a condition where children are born with multiple joint contractures, limiting joint movement and causing joint deformities.


It's important to note that these conditions are often complex, require specialized care, and may involve a team of healthcare professionals, including paediatric orthopaedic surgeons, geneticists, and physical therapists, to manage and treat effectively.


Early diagnosis and appropriate treatment are crucial to improve the outcomes and quality of life for children with these rare musculoskeletal conditions.


Treating musculoskeletal conditions early is crucial for several reasons:


  • Preventing Progression: Many musculoskeletal conditions tend to worsen over time if left untreated. By addressing the issue early, you can potentially slow down or even halt the progression of the condition. This can help preserve joint function, reduce pain, and improve overall quality of life.


  • Minimizing Damage: Early intervention can help prevent further damage to the affected muscles, bones, joints, or soft tissues. Delaying treatment may lead to irreversible structural damage that can be more challenging to manage.


  • Reducing Pain and Discomfort: Musculoskeletal conditions often cause pain, discomfort, and limited mobility. Early treatment can alleviate these symptoms, improving the individual's comfort and ability to perform daily activities.


  • Improving Long-Term Outcomes: Timely treatment can result in better long-term outcomes. It may reduce the need for more invasive treatments, such as surgery, and help individuals maintain a higher level of function and independence.


  • Preserving Function and Mobility: Musculoskeletal conditions can significantly impact an individual's ability to move, work, and participate in activities they enjoy. Early treatment can help maintain or restore function and mobility, enabling a better quality of life.


  • Enhancing Quality of Life: Living with untreated musculoskeletal conditions can have a negative impact on an individual's physical and emotional well-being. Early treatment can enhance the overall quality of life by reducing pain, improving mobility, and minimizing the impact of the condition on daily life.


  • Avoiding Complications: Some musculoskeletal conditions can lead to complications if not treated promptly. For example, untreated arthritis may lead to joint deformities, and untreated fractures may result in delayed or non-union, potentially requiring more extensive interventions.


  • Cost-Effectiveness: Treating musculoskeletal conditions early is often more cost-effective in the long run. Early intervention can help avoid the need for more expensive treatments, surgeries, or prolonged rehabilitation.


  • Preventing Secondary Issues: Musculoskeletal conditions can lead to secondary problems, such as muscle weakness or imbalances, which can increase the risk of falls and additional injuries. Addressing the primary condition early can reduce the likelihood of these secondary issues.


In summary, early treatment of musculoskeletal conditions is essential to prevent progression, minimize damage, reduce pain, preserve function and mobility, improve long-term outcomes, enhance quality of life, avoid complications, and ultimately lead to better overall health and well-being. If you suspect you have a musculoskeletal issue, it's important to seek timely medical evaluation and guidance to develop an appropriate treatment plan.

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