A nurse is caring for a child who is suspected of having Legg-Calve-Perthes disease.
The nurse should prepare the child for which of the following diagnostic procedures?
A.
Bone biopsy.
B.
Radiographs.
C.
MRI.
D.
Genetic testing.
The Correct Answer and Explanation is:
The correct answer is B. Radiographs.
Explanation:
Legg-Calve-Perthes disease is a condition characterized by the avascular necrosis of the femoral head in children, which affects the hip joint. This condition typically presents in children between the ages of 4 and 10 and manifests with symptoms such as hip pain, limping, and reduced range of motion.
Radiographs (X-rays) are the primary diagnostic tool used for evaluating Legg-Calve-Perthes disease. The initial X-ray imaging can reveal changes in the femoral head and the hip joint, such as flattening or fragmentation of the femoral head, which are indicative of avascular necrosis. Radiographs are usually the first step in diagnosing this condition because they are widely available, relatively inexpensive, and can quickly provide important information about the state of the hip joint. X-rays can help in staging the disease and monitoring its progression over time.
MRI (Magnetic Resonance Imaging), while more detailed, is not always the initial diagnostic test. MRI is used in cases where X-rays are inconclusive or to assess the extent of bone damage more precisely. It provides detailed images of both the bone and soft tissues and can help evaluate the degree of necrosis and potential involvement of the surrounding soft tissues. However, its higher cost and availability often make it a secondary option.
Bone biopsy is not indicated for diagnosing Legg-Calve-Perthes disease. It is typically used to diagnose bone tumors or infections rather than developmental bone conditions.
Genetic testing is also not a standard diagnostic procedure for Legg-Calve-Perthes disease. Although some genetic predispositions might influence the risk, the diagnosis is primarily based on clinical presentation and imaging findings rather than genetic analysis.
In summary, radiographs are the most appropriate and commonly used diagnostic procedure for initial evaluation of suspected Legg-Calve-Perthes disease, providing essential information about the bone structure and changes associated with the disease.