Mh. Gonzalez et al., VARIATIONS OF THE FLEXOR DIGITORUM SUPERFICIALIS TENDON OF THE LITTLEFINGER, Journal of hand surgery. British volume, 22B(2), 1997, pp. 277-280
Seventy cadaveric hands were dissected to study variations of the flex
or digitorum superficialis tendon (FDS) to the little finger. Anatomic
al variations were present in 13% of hands and 10% of the hands showed
an anatomical variation that would preclude independent FDS function
in the little finger. The distance of the decussation from the metacar
pophalangeal joint was measured. A ratio of this distance to proximal
phalangeal length was calculated. The ratio indicated that decussation
position was independent of phalangeal size.