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The mechanism behind how hypercalciuria causes increased bone resorption is still conflicting. A high animal protein diet causes increased bone resorption and bone loss rate. [8] The high level of calcitriol found in hypercalciuria patients mentioned earlier stimulates higher rates of bone resorption and lowers bone formation. [8]
Growth arrest lines, also known as Harris lines, are lines of increased bone density that represent the position of the growth plate at the time of insult to the organism and formed on long bones due to growth arrest. They are only visible by radiograph or in cross-section. The age at which the lines were formed can be estimated from a radiograph.
The collar bones are often underdeveloped and malformed. The nails are flat, grooved, and dysplastic. High bone density, Acro-osteolysis and obtuse mandibular angle are the characteristic radiological findings of this disorder. [10] Pycnodysostosis also causes problems that may become evident with time.
Osteosclerosis is a disorder characterized by abnormal hardening of bone and an elevation in bone density. It may predominantly affect the medullary portion and/or cortex of bone. Plain radiographs are a valuable tool for detecting and classifying osteosclerotic disorders.
There are no clinical signs or symptoms of hypercalciuria itself but elevated calcium in the urine can contribute to accelerated loss of calcium from bone leading to osteoporosis. Additionally, hypercalciuria can contribute to kidney stone formation which may present with flank or back pain that comes and goes.
The impairment of bone metabolism causes inadequate bone mineralization. Osteomalacia in children is known as rickets, and because of this, use of the term "osteomalacia" is often restricted to the milder, adult form of the disease. Signs and symptoms can include diffuse body pains, muscle weakness, and fragility of the bones.
Fibrous dysplasia causes bone thinning [13] and growths or lesions in one or more bones of the human body. These lesions are tumor-like growths that consist of replacement of the medullary bone with fibrous tissue, causing the expansion and weakening of the areas of bone involved. Especially when involving the skull or facial bones, the lesions ...
Metabolic bone disease is an abnormality of bones caused by a broad spectrum of disorders. Most commonly these disorders are caused by deficiencies of minerals such as calcium, phosphorus, magnesium or vitamin D leading to dramatic clinical disorders that are commonly reversible once the underlying defect has been treated.