Rickets

Rickets is a disease characterized by impaired bone mineralization and the occurrence of skeletal deformities due to a lack of vitamin D, calcium or phosphorus. Children under three years of age, when their body is actively growing and developing, are most susceptible to this disease. Studying this disease is important not only from a medical point of view, but also for understanding its impact on health in the future. The main clinical manifestations of rickets include general weakness, growth retardation, bone pain, as well as characteristic deformities of the limbs and chest. Given its wide range of manifestations and possible long-term consequences for the body, it is important to pay due attention to early diagnosis and prevention of rickets.

History of the disease and interesting historical facts

Rickets has been known since ancient times, but its true nature remained a mystery for a long time. Rickets was first mentioned in the works of Hippocrates, but it was only in the 19th century that doctors began to study its causes and mechanisms in more detail. In 1822, the famous English doctor D. Shattock described the clinical manifestations of rickets and first proposed the use of sunlight for its prevention. During social rehabilitation in the industrial era, when urbanization led to a decrease in sunlight for children, the number of cases of rickets increased. In the 1920s, scientists established a link between vitamin D deficiency and the development of this disease, which marked the beginning of its prevention through the use of vitamin-fortified products.

Epidemiology

According to the World Health Organization, rickets remains one of the most common diseases in the pediatric population worldwide. In developed countries, the incidence of rickets usually does not exceed 5%, while in developing countries this number can reach 20-30%. In recent decades, there has been an increase in the incidence of rickets due to lifestyle changes, an increase in the number of children who are breastfed, and insufficient exposure to sunlight. In certain populations, especially among children with dark skin, the risk of developing rickets is significantly higher due to a lower ability to synthesize vitamin D under the influence of sunlight.

Genetic predisposition to this disease

Although the main risk factors for rickets are vitamin D and mineral deficiencies, genetic predispositions also play an important role. It is known that mutations in genes responsible for vitamin D metabolism can significantly increase the risk of developing this disease. For example, changes in the VDR (vitamin D receptor), CYP2R1 and CYP27B1 genes can lead to dysplasia of vitamin D metabolism, which in turn affects the efficiency of calcium and phosphorus absorption. These genetic mutations can be detected already in childhood and require special monitoring by a specialist.

Risk factors for the development of this disease

The risk of developing rickets is determined by many factors, each of which can contribute to the development of this disease. The main risk factors include:

• Lack of sunlight, which may be caused by geographical conditions, climate or lifestyle.
• Poor nutrition, in particular, deficiency of vitamin D, calcium and phosphorus, especially in formula-fed infants.
• Family history of rickets or other diseases associated with vitamin and mineral metabolism.
• Chronic intestinal diseases leading to impaired absorption of nutrients.
• Insufficient physical activity and limited physical activity in children.

Diagnosis of this disease

Diagnosis of rickets requires a comprehensive approach and includes the following components:

— The main symptoms to look out for are:

• Weakness and increased fatigue.
• Delayed growth and development.
• Deformations of the limbs and chest.
• Pain or discomfort in the bones.

— Laboratory tests include:

• General and biochemical blood analysis (changes in calcium, phosphorus and vitamin D levels).
• Urine analysis for calcium and phosphate levels.

— Radiological examinations, including skeletal X-rays to detect deformities and structural changes in bones.

— Other diagnostic tests may include ultrasound and magnetic resonance imaging to assess the condition of joints and soft tissues.

— Differential diagnosis includes exclusion of other conditions that present with similar symptoms, such as osteoporosis, osteomalacia, or inherited metabolic diseases.

Treatment

Treatment of rickets depends on its form and severity. The main approaches to therapy include:

— General treatment:

• Dietary adjustments to include foods rich in vitamin D, calcium and phosphorus.
• Exposure to sunlight is essential for the synthesis of vitamin D.
• Therapeutic exercise to improve posture and strengthen muscles.

— Pharmacological treatment:

• Taking vitamin D in various forms (eg, ergocalciferol, cholecalciferol) depending on the degree of deficiency.
• Use of calcium supplements if necessary.

— Surgical treatment may be required in severe cases with pronounced deformities that do not respond to conservative therapy.

— Other treatments may include physical therapy and massage to improve the patient's overall condition.

List of medications used to treat this disease

— Vitamin D (ergocalciferol, cholecalciferol)
- Calcium carbonate
- Calcium gluconate
- Magnesium
— Preparations containing phosphorus

Disease monitoring

Monitoring of a patient diagnosed with rickets includes regular follow-up examinations and tests to assess the effectiveness of treatment. The prognosis with timely diagnosis and adequate treatment is generally favorable, but complications such as growth retardation, anatomical deformities, and other weakening of the physical condition may occur.

Age-related features of the disease

Rickets can manifest itself differently depending on the age group:

• In newborns and infants, the disease progresses rapidly, causing profound growth dysfunction and general weakness.
• In older children, symptoms may appear more slowly, but bone deformities may become more pronounced.
• In adolescents, rickets can lead to abnormalities in skeletal development, causing problems with posture.

Questions and Answers

• What is rickets? Rickets is a disease characterized by impaired bone mineralization caused by a lack of vitamin D, calcium or phosphorus, which leads to skeletal deformities, especially in children.
• What are the main symptoms of rickets? The main symptoms of rickets include general weakness, growth retardation, bone pain and characteristic limb deformities such as clumsy hands and swan neck.
• How is rickets diagnosed? Diagnosis includes clinical examination, laboratory tests, radiography, and dietary assessment, as well as exclusion of other diseases with similar manifestations.
• How is rickets treated? Treatment includes dietary changes, vitamin D and calcium supplements, and, in severe cases, physical therapy or surgery.
• Is it possible to prevent rickets? Yes, prevention of rickets includes adequate sunlight exposure, a proper diet high in vitamin D, and regular supplementation when needed.