Effect of a tightened anterior band of the ulnar collateral ligament on arthrokinematic motion at the humeroulnar joint.
This study examined the effect of the anterior band of the ulnar collateral ligament on arthrokinematic motion of the elbow joint. Five cadaver upper extremities were used in the investigation. With the humerus stabilized in a specially designed clamp, normal elbow joint motion was determined through markings made on the trochlea at six points within the range of movement. A l/ls-inch drill hole was used to make the markings on each trochlea, and a red latex dye was injected into these markings to indicate the track of motion. The anterior band of the ulnar collateral ligament in each of the specimens was then shortened and tied. The articular surface of each trochlea was again marked as before, but with a green latex dye. Upon disarticulation, each trochlea exhibited six marker holes, each %6 inch in diameter. Each of the marker holes contained both red and green latex dyes. It was concluded that tightening of the anterior band of the ulnar collateral ligament resulted in no observable change in arthrokinematic motion of the elbow joints examined. J Orthop Sports Phys Ther 1986;8(3):123-127.
Schuit
D
D
McPoil
T G
TG
Knecht
H G
HG