TY - JOUR
T1 - Ligament stability of the metacarpophalangeal joint
T2 - A biomechanical study
AU - Minami, Akio
AU - An, Kai Nan
AU - Cooney, William P.
AU - Linscheid, Ronald L.
AU - Chao, Edmund Y.S.
N1 - Funding Information:
From the Biomechanics Laboratory, Department of Orthopedics, Mayo Clinic/Mayo Foundation, Rochester, Minn. Supported by National Institutes of Health Grant No. AMI7172. Received for publication Sept. 13, 1983; accepted in revised form June 13, 1984. Reprint requests: Kai-Nan An, Ph.D., Biomechanics Laboratory, Department of Orthopedics, Mayo Clinic, Rochester, MN 55905.
PY - 1985
Y1 - 1985
N2 - Capsuloligamentous contributions to metacarpophalangeal joint stability were obtained from load-displacement tests on the joints of 15 human cadavers. The contribution of each ligament to joint stability was obtained by measuring the reduction of load that induced a given joint displacement after sequential ligamentous sectioning. Four modes of joint displacement were examined: distal distraction, dorsopalmar dislocation, abduction-adduction rotations, and supination-pronation rotations. This study demonstrated that both radial and ulnar collateral ligaments play primary roles in stabilizing the metacarpophalangeal joint in all four modes of joint displacement. The accessory collateral ligaments contribute primarily to abduction-adduction rotational stability, but contribute little to stabilizing dorsopalmar dislocation or axial (supinationpronation) rotations. The palmar plate prevents dorsal dislocation only at full extension. The dorsal capsule has a moderate contribution to stability in distraction and supination-pronation rotations.
AB - Capsuloligamentous contributions to metacarpophalangeal joint stability were obtained from load-displacement tests on the joints of 15 human cadavers. The contribution of each ligament to joint stability was obtained by measuring the reduction of load that induced a given joint displacement after sequential ligamentous sectioning. Four modes of joint displacement were examined: distal distraction, dorsopalmar dislocation, abduction-adduction rotations, and supination-pronation rotations. This study demonstrated that both radial and ulnar collateral ligaments play primary roles in stabilizing the metacarpophalangeal joint in all four modes of joint displacement. The accessory collateral ligaments contribute primarily to abduction-adduction rotational stability, but contribute little to stabilizing dorsopalmar dislocation or axial (supinationpronation) rotations. The palmar plate prevents dorsal dislocation only at full extension. The dorsal capsule has a moderate contribution to stability in distraction and supination-pronation rotations.
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U2 - 10.1016/S0363-5023(85)80117-9
DO - 10.1016/S0363-5023(85)80117-9
M3 - Article
C2 - 3980940
AN - SCOPUS:0022294882
SN - 0363-5023
VL - 10
SP - 255
EP - 260
JO - Journal of Hand Surgery
JF - Journal of Hand Surgery
IS - 2
ER -