Correct bending of the aluminium splint and correct fixation of the splint
in the cast are difficult but essential. The bend for the flexion of the MCP
joint is more proximal than often perceived. There is a risk of excessive
pressure and later ulceration of the soft tissues at the level of the bend if
it is too distal.
The advantage of this technique is that only the injured finger is
immobilized. Usually hand therapy is not necessary.
Another advantage is that this technique helps maintain length in shortened
fractures, but there is less control over rotation than with immobilisation of
the adjacent rays (Option 1).