LA27059-7
TW2 20 bones
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Answer Description
Tanner-Whitehouse system 2nd edition (1983). Bone age assessment method that involve left hand and wrist radiographs. The 20-bones method evaluates the 13 long or short bones and 7 carpals.
The TW2 method is a scoring method. Firstly, the maturity level of each bone is categorized into a stage (from stage A to H or I). Afterwards, each stage is replaced by a score, and a total sore is calculated. Finally, the total score is transformed into the bone age.
The TW2 method was developed using radiographs of average socioeconomic class children in the United Kingdom, and the radiographs were collected in the 1950s and 1960s.
Answer Lists using this Answer Code
| Answer List | Answer List Name | Externally Defined |
|---|---|---|
| LL4308-4 | Bone age method | N |
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