Nerve entrapment and compression syndromes of the elbow include cubital tunnel syndrome, radial tunnel syndrome, posterior interosseous
nerve syndrome, anterior interosseous nerve syndrome and pronator syndrome.
Given the superior biomechanical properties of cortical button fixation and increased use of this technique, the safety of the posterior interosseous
nerve was brought into question while drilling through the posterior cortex.
Rheumatoid arthritis (RA) is one of the etiological pathologies for mechanical entrapment of the posterior interosseous
nerve entrapment may occur concurrently with a tennis elbow.
The nerve then divides into superficial and deep posterior interosseous
branches (Figure 1a).
Several reports began to surface identifying injury to the radial and posterior interosseous
nerves (5, 15).
The distal cage pattern allows for 4 screws to be placed in the radial shaft for distal stability though a relatively short plate to help limit risk of injury to the posterior interosseous
It bifurcates at the level of the elbow joint into the superficial nerve, which courses dorsally under the extensor carpi radialis brevis, and the PIN, which dives under the superficial head of the supinator muscle and continues along with the posterior interosseous
artery to supply all of deeper lying extensor muscles.
The common interosseous artery arises from the lateral side of the ulnar artery and divides into the anterior and posterior interosseous
The terminal branch of the posterior interosseous
nerve is identified on the radial floor of the fourth compartment, and a 2-cm segment is resected for pain reduction.
The proximal portion of the distal biceps is supplied by branches of the brachial artery, whereas the distal insertion is supplied by the posterior interosseous
They reported one permanent posterior interosseous