This finger spring fits from the head of the metacarpal to the distal interphalangeal joint. It is used to assist the proximal interphalangeal joint (PIP) into increased extension. It has a minimal effect on metacarpal phalangeal (MP) extension.
To determine splint length, measure involved finger as indicated in the diagram.
|Size||measure finger from palmar crease to distal finger crease|
|XS||2 1/4", 5.7 cm|
|S||2 3/4", 7 cm|
|M||3", 7.6 cm|
|L||3 1/2" , 8.9 cm|
|XL||4" , 10 cm|