TY - JOUR
T1 - Stability of the arch of the foot
AU - Kitaoka, Harold B.
AU - Ahn, Tae Kun
AU - Luo, Zong Ping
AU - An, Kai Nan
PY - 1997/10
Y1 - 1997/10
N2 - We defined the relative contributions of six ligaments in stabilizing the arch of the foot: plantar aponeurosis, long-short plantar ligaments, plantar calcaneonavicular ligament (spring ligament), medial talocalcaneal ligament, talocalcaneal interosseous ligament, and tibionavicular portion of the deltoid ligament. Nineteen fresh-frozen human foot specimens were used. A load of 445 N was applied axially to simulate standing-at-ease posture. Three-dimensional positions of tarsal bones before and after ligament sectioning were determined with the use of a magnetic tracking device. The motions were presented in the form of screw axis displacements, quantitating rotation, and axis of rotation orientation. After sectioning one structure, the arch did not collapse on any specimen and there was no obvious change by visual inspection. There were, however, measurable changes in tamar bone position. Metstarsal-to-talus total rotation difference was greatest with spring ligament and deltoid ligament sectioning, with an average of 2.1°± 1.7°and 2.0°± 0.2°difference, respectively. Calcane-us-to-talus rotation difference was greatest with talocalcaneal interosseous ligament sectioning, with an average of 1.7°± 1.5°. The spring ligament, deltoid ligament, and talocalcaneal interosseous ligament were most important for arch stability.
AB - We defined the relative contributions of six ligaments in stabilizing the arch of the foot: plantar aponeurosis, long-short plantar ligaments, plantar calcaneonavicular ligament (spring ligament), medial talocalcaneal ligament, talocalcaneal interosseous ligament, and tibionavicular portion of the deltoid ligament. Nineteen fresh-frozen human foot specimens were used. A load of 445 N was applied axially to simulate standing-at-ease posture. Three-dimensional positions of tarsal bones before and after ligament sectioning were determined with the use of a magnetic tracking device. The motions were presented in the form of screw axis displacements, quantitating rotation, and axis of rotation orientation. After sectioning one structure, the arch did not collapse on any specimen and there was no obvious change by visual inspection. There were, however, measurable changes in tamar bone position. Metstarsal-to-talus total rotation difference was greatest with spring ligament and deltoid ligament sectioning, with an average of 2.1°± 1.7°and 2.0°± 0.2°difference, respectively. Calcane-us-to-talus rotation difference was greatest with talocalcaneal interosseous ligament sectioning, with an average of 1.7°± 1.5°. The spring ligament, deltoid ligament, and talocalcaneal interosseous ligament were most important for arch stability.
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U2 - 10.1177/107110079701801008
DO - 10.1177/107110079701801008
M3 - Article
C2 - 9347302
AN - SCOPUS:0030862595
SN - 1071-1007
VL - 18
SP - 644
EP - 648
JO - Foot and Ankle International
JF - Foot and Ankle International
IS - 10
ER -