In full elbow extension, varus stability is provided by which of the following bony and/or noncontractile soft tissue structures?
a. Configuration of the joint surfaces, medial collateral ligament, anterior ligament
b. Posterior ligament, configuration of the joint surfaces, annular ligament
c. Oblique cord, quadrate ligament, configuration of the joint surfaces
d. Configuration of the joint surfaces, joint capsule, lateral collateral ligament
ANS: D
Configuration of the boney components of the elbow joint provide one half of the resistance to varus stress. The lateral collateral ligament and joint capsule provide the other half of the resistance.
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