Osteogenesis imperfecta living

Overview

Osteogenesis imperfecta (say: os-tee-oh-JEN-uh-sis im-per-FEK-tuh) is a rare genetic condition where bones break easily. It is often called 'brittle bone disease.' People with OI have a problem with collagen, the protein that gives bones strength and structure.

It is rare. About 1 in 15,000 to 20,000 people has OI. That means in the UK, around 3,000 to 5,000 people may be living with it.

It can affect anyone, but it is usually diagnosed in childhood. Both males and females are affected equally. In most cases, OI is passed down from a parent, but in some cases it happens by chance in a child with no family history.

Symptoms

Common symptoms

• Frequent fractures from minor bumps or falls
• Bones that are lighter and weaker than normal
• Short stature
• Loose joints and weak muscles
• A blue or grey tint to the whites of the eyes
• Brittle teeth and dental problems
• Hearing loss, often starting in adulthood

Symptoms in children

• Fractures with little or no obvious cause
• Delayed motor skills like walking or crawling
• Bowed arms or legs
• A smaller-than-expected frame
• Soft spots on the skull that close late

Symptoms in older adults

• Ongoing pain from old fractures
• Hearing loss, often by age 30 to 40
• Curved spine (scoliosis)
• Breathing difficulties due to chest wall problems
• Osteoarthritis in later years

Causes

Main causes

• A change (mutation) in the COL1A1 or COL1A2 genes, which give instructions for making type I collagen
• In most cases, this gene change is inherited from a parent (autosomal dominant inheritance)
• In other cases, the gene change happens randomly at conception

Risk factors

• Having a parent or sibling with OI
• Hereditary pattern in the family
• Being the first child with a new gene change (this can happen without any family history)

When to see a doctor

See a doctor urgently if:

• Any unexplained bone fracture
• A fracture that does not heal after following a plan
• Sudden hearing loss or eye pain

Book a routine appointment if:

• If you or your child has several fractures with little trauma, ask for a referral to a bone specialist
• If you have a family history of OI, a genetic counsellor can explain your chances of having a child with it

Diagnosis

Doctors start with a detailed medical and family history, a physical exam, and X-rays. They may also do a blood test or genetic test to confirm the collagen problem. Specialists such as geneticists or orthopaedic surgeons are often involved.

Tests that may be done

• X-rays to see if bones are weak or bowed
• DXA scan (dual-energy X-ray absorptiometry) to measure bone density
• Blood test to check vitamin D and calcium levels
• Genetic test to look for changes in the collagen genes

What to expect at your appointment

You will likely be seen by a bone specialist (orthopaedic doctor) and a geneticist. The appointments may take a few hours. They may ask about your family history and do a physical exam. In many cases, the diagnosis is made based on clinical signs, and genetic testing supports it.

Treatment

There is no cure for OI, but a combination of medicines, rehabilitation, and sometimes surgery helps maintain bone strength, reduce pain, and support mobility. The goal is to help you live as independently and safely as possible.

Self-care at home

• Use helpers like a walking stick, wheelchair, or foam padding on sharp corners if needed
• Choose low-impact activities like swimming and cycling with support
• Learn body positioning that protects your spine and limbs
• Keep floors clear to reduce falls
• Avoid contact sports or heavy lifting

Medical treatments

A specialist may recommend medicines called bisphosphonates. These are usually given as an infusion every few months. They help make bones stronger and reduce fracture risk. In the UK, this treatment is started and monitored by a hospital specialist. Physiotherapy and occupational therapy are often part of the plan.

When is surgery considered?

Surgery may help when bones are severely bent or if fractures keep happening. Metal rods placed along the inside of long bones can improve alignment and reduce pain. A surgeon will discuss the risks and benefits with you.

Living with this condition

With OI, small changes make daily life easier. Keep pathways clear, install handrails, and use a reach stick instead of climbing. Plan activities around your energy and pain levels. Learn to ask for help when needed.

Lifestyle tips

• Stay physically active in safe ways to keep muscles strong
• Wear a medical alert bracelet if you have had fractures easily
• See your dentist regularly — dental health matters
• Protect your hearing — get it checked every few years

Diet and exercise

Eat a varied diet rich in calcium and vitamin D. Good sources include dairy, green leafy vegetables, tofu, and fortified cereal. Vitamin D comes from sunlight, but in the UK many people benefit from a supplement — ask your doctor before taking anything. For exercise, try swimming, stationary cycling, or chair-based routines. Always get approval from a physiotherapist.

Mental health and emotional wellbeing

Living with a visible difference or repeated fractures can feel tough. It is normal to have low moments. Talk to someone you trust, and speak to your GP about counselling or psychological support. If you ever feel you cannot cope, reach out for immediate help via your local emergency number or a crisis line.

Prevention

You cannot prevent OI because it is a genetic condition. But you can reduce the number of fractures by staying active safely and following your treatment plan. If you have OI and are planning a family, genetic counselling can explain the risks for your children.

Vaccines

All routine vaccinations are safe and recommended for people with OI, unless a doctor says otherwise. There is no vaccine that prevents OI.

Screening programmes

There is no routine screening for OI in pregnancy. If you have a known genetic change, prenatal testing may be available after a conversation with a genetic counsellor.

Complications

If left untreated

• Repeated fractures leading to chronic pain and reduced mobility
• Bones that heal poorly and cause limb shortening or bowing
• Hearing loss and vision problems
• Breathing problems in severe OI
• Loss of independence and increased risk of fall injuries

Long-term outlook

With modern care, most people with OI lead active, productive lives. The outlook depends on the type and severity. Some people need a wheelchair, while others simply need to be careful with certain activities. Every person is different, and treatment is improving all the time.

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