Question

what is the roll and slide mechanism of elbow flexion?
a) posterior roll, anterior glide
b) anterior roll, anterior glide
c) anterior roll, posterior glide
d) posterior roll, posterior glide

Explanation:

To determine the roll and slide mechanism of elbow flexion, we recall the biomechanics of the elbow joint. During elbow flexion, the trochlea of the humerus rolls posteriorly and glides posteriorly on the trochlear notch of the ulna. This matches option d.

Answer:

d) Posterior roll, posterior glide