“Shriners disease” isn’t a single medical condition. It’s an informal term people use to describe the orthopedic and bone disorders commonly treated at Shriners Children’s hospitals, a network of pediatric specialty centers known for treating complex skeletal problems at no cost to families. The conditions most often associated with the name are Scheuermann’s kyphosis (excessive rounding of the upper back) and Legg-Calvé-Perthes disease (a hip disorder in children), though Shriners treats over 100 orthopedic conditions including scoliosis, clubfoot, brittle bone disease, and cerebral palsy.
Why the Name “Shriners Disease” Stuck
Shriners Children’s hospitals have been treating pediatric bone and joint conditions since 1922, and for many families, they’re the first place a child receives a diagnosis for a skeletal disorder. Because these hospitals specialize in conditions that are rare or unfamiliar to most people, parents and patients sometimes refer to whatever was diagnosed there as “Shriners disease.” The term gets passed around in families and communities, especially when the actual condition name is hard to pronounce or remember.
The two conditions most frequently linked to this informal label are Scheuermann’s kyphosis and Legg-Calvé-Perthes disease. Both primarily affect children and adolescents, both involve the skeleton, and both are conditions Shriners hospitals have deep expertise in treating. Shriners also cares for more than 10,000 children with scoliosis each year, along with kids with spina bifida, limb differences, hip dysplasia, and skeletal dysplasias.
Scheuermann’s Kyphosis
Scheuermann’s kyphosis is a structural spinal condition where the upper back curves forward more than it should. A normal upper spine curves between 20 and 40 degrees. In Scheuermann’s, the curve exceeds 40 degrees because the front edges of at least three vertebrae in a row become wedge-shaped, each angled at least 5 degrees. Instead of stacking like rectangular blocks, these vertebrae look more like doorstops, forcing the spine into an exaggerated hunch.
This isn’t the same as poor posture. The key difference is rigidity. If you have postural kyphosis, your back straightens when you actively extend your spine or lie flat. With Scheuermann’s, the curve stays fixed. It won’t correct with effort or positioning. On physical exam, people with this condition often have a “goose-neck” posture where the head and neck jut forward, tight hamstrings and hip flexors, and sometimes skin changes over the most prominent part of the curve from the spinous processes rubbing against clothing.
How It’s Managed
Treatment depends on how severe the curve is and whether the child is still growing. Mild cases are monitored with standing X-rays over time to check for progression. Physical therapy and anti-inflammatory pain relievers help manage discomfort and strengthen the muscles supporting the spine.
For moderate curves in growing adolescents, bracing is the main treatment. Braces are typically worn 16 to 20 hours per day for an average of about 28 months. The goal is to prevent the curve from worsening while growth continues. Weaning off the brace happens once vertebral shape improves on imaging or growth is complete.
Surgery becomes a consideration when the curve reaches 80 to 90 degrees or when bracing fails to control progression. The procedure fuses the affected vertebrae to straighten and stabilize the spine. Most people with Scheuermann’s, though, never need surgery.
Legg-Calvé-Perthes Disease
Legg-Calvé-Perthes disease is a childhood hip condition where blood flow to the ball of the hip joint (the top of the thighbone) is disrupted. Without adequate blood supply, the bone tissue dies, softens, and eventually collapses. The condition typically shows up between ages 3 and 12, and boys are three to five times more likely to develop it than girls. Up to 29 in 100,000 children under 15 are affected.
The cause isn’t fully understood in most cases, though trauma, blood clotting problems, and steroid use have been linked to the disruption in blood flow. In many children, no clear trigger is ever identified.
The Four Stages of Perthes Disease
The disease progresses through a predictable cycle that unfolds over two to five years:
- Necrosis: Blood supply to the femoral head is cut off. The bone stops growing, softens, and dies.
- Fragmentation: The body breaks down and reabsorbs the dead bone tissue. The hip may look crumbled or patchy on X-rays.
- Reossification: New bone-building cells take over and the femoral head begins to reform.
- Remodeling: The new femoral head reshapes as the child grows. It may end up slightly larger or flatter than normal.
Children with Perthes disease usually first notice a limp, hip stiffness, or pain in the groin, thigh, or knee. The pain often worsens with activity and improves with rest.
Long-Term Outlook
Two factors matter most for long-term outcomes: the child’s age when the disease starts, and the final shape of the femoral head once the skeleton matures. Younger children generally do better because they have more years of growth for the hip to remodel into a functional shape.
The reality is that most people with Perthes disease will develop some degree of hip arthritis later in life. Follow-up studies spanning 20 to 40 years show increased rates of both visible joint damage on X-rays and symptomatic arthritis, with degenerative joint disease affecting the majority of patients by their 50s or 60s. That said, many people function well for decades before joint replacement becomes necessary, especially those diagnosed young whose femoral head healed in a round shape.
Other Conditions Treated at Shriners
While Scheuermann’s and Perthes get the “Shriners disease” label most often, the hospitals treat a wide range of pediatric orthopedic problems. Scoliosis, the sideways curvature of the spine, is one of the most common. Clubfoot, where a baby is born with one or both feet turned inward, is another specialty. Osteogenesis imperfecta (brittle bone disease) is a genetic disorder that prevents the body from building strong bones, leading to fractures from minimal force. Shriners also provides surgical and rehabilitative care for children with cerebral palsy, spina bifida, limb differences present from birth, hip dysplasia, and sports injuries.
The common thread is that these are all conditions affecting growing bones and joints in children, often requiring years of coordinated care from orthopedic surgeons, physical therapists, and rehabilitation specialists. Shriners provides this care regardless of a family’s ability to pay, which is part of why the hospital system became so closely associated with these conditions in public awareness.