TY - JOUR
T1 - Functional anatomy of the human digital flexor pulley system
AU - Lin, Gau Tyan
AU - Amadio, Peter C.
AU - An, Kai Nan
AU - Cooney, William P.
PY - 1989
Y1 - 1989
N2 - The anatomy of 55 cadaver digits was studied, both statistically and with simulated active motion using weights attached to the flexor tendons. The modified description of Doyle and Blythe accurately described the anatomy observed. Serial pulley sectioning showed two types of bowstringing, both of which affected the relationship of tendon excursion to joint motion. The most constant, resulting in 15% loss of motion for a fixed tendon excursion, occurred over the concave surfaces of the proximal and middle phalanges. Bowstringing at the proximal interphalangeal joint was present only after 30 degrees of flexion had occurred, because of the convexity of the phalangeal condyles.
AB - The anatomy of 55 cadaver digits was studied, both statistically and with simulated active motion using weights attached to the flexor tendons. The modified description of Doyle and Blythe accurately described the anatomy observed. Serial pulley sectioning showed two types of bowstringing, both of which affected the relationship of tendon excursion to joint motion. The most constant, resulting in 15% loss of motion for a fixed tendon excursion, occurred over the concave surfaces of the proximal and middle phalanges. Bowstringing at the proximal interphalangeal joint was present only after 30 degrees of flexion had occurred, because of the convexity of the phalangeal condyles.
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U2 - 10.1016/S0363-5023(89)80043-7
DO - 10.1016/S0363-5023(89)80043-7
M3 - Article
C2 - 2584655
AN - SCOPUS:0024800265
VL - 14
SP - 949
EP - 956
JO - Journal of Hand Surgery
JF - Journal of Hand Surgery
SN - 0363-5023
IS - 6
ER -