1. What is Bone Age Assessment?

Bone age assessment is a medical procedure that compares an individual's bone development to standardized references. It helps evaluate growth patterns and diagnose growth disorders by comparing X-ray images to established standards.

2. How Does the Calculator Work?

The calculator uses project-based comparison methods:

Where:

• X-ray Data — Specific bone development parameters
• Chronological Age — Actual age in years
• Gender — Male or Female (different standards apply)
• Comparison Standard — Selected reference method

Explanation: The assessment compares specific bone features to standardized references to determine skeletal maturity.

3. Importance of Bone Age Calculation

Details: Bone age assessment is crucial for diagnosing growth disorders, predicting adult height, monitoring treatment effectiveness, and identifying endocrine abnormalities.

4. Using the Calculator

Tips: Enter X-ray parameters, chronological age, select gender and comparison standard. All values must be valid for accurate assessment.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between bone age and chronological age?
A: Bone age measures skeletal maturity, while chronological age measures time since birth. They can differ significantly in growth disorders.

Q2: Which standard is more accurate?
A: Both Greulich & Pyle and Tanner-Whitehouse are widely used. Greulich & Pyle is faster, while Tanner-Whitehouse provides more detailed analysis.

Q3: When should bone age assessment be performed?
A: When there are concerns about growth patterns, puberty timing, or when endocrine disorders affecting growth are suspected.

Q4: Are there limitations to bone age assessment?
A: Yes, it requires trained radiologists, can have inter-observer variability, and may be less accurate in certain ethnic populations.

Q5: Can bone age predict adult height?
A: Yes, bone age assessment combined with current height can provide reasonably accurate predictions of final adult height.