Final answer:
Rickets is a pediatric bone disorder caused by insufficient vitamin D, leading to soft bones and skeletal deformities. It results from the failure of bone calcification due to the malabsorption of calcium and phosphate, as vitamin D is necessary for their intake.
Step-by-step explanation:
Rickets is indeed a metabolic bone disorder that affects children, characterized by weak and soft bones due to inadequate calcification during growth. The primary cause of this condition is often a deficiency in vitamin D, which is essential for the absorption of calcium and phosphate in the intestines. A lack of these minerals prevents the proper hardening and development of bones.
Children with rickets may exhibit bone deformities, muscle weakness, and a greater susceptibility to fractures. The classic symptom of rickets - bowing of the legs - is due to the inability of the softened bones to support body weight appropriately. Furthermore, insufficient levels of serum phosphate, typically ranging from 1 to 2 mg/100 ml, are noted in individuals with this disorder.
Treatment typically involves increasing dietary intake of vitamin D and calcium, along with possible supplementation if necessary. Exposure to sunlight, which facilitates the natural production of vitamin D in the skin, is also recommended as part of the treatment.