= golfer's elbow, pitcher's elbow, medial tennis elbow
Middle age
Far less common than lateral epicondylitis
Pain in the anterior aspect of the medial epicondyle - flexor-pronator tendon group
Most commonly involved tendons: pronator teres and flexor carpi radialis
May be associated with ulnar neuropathy
MR:
Coronal FS T2 is best sequence
Increased signal and thickening of the flexor-pronator group
Complete/ incomplete tendon tear
Tendinosis/ tendinopathy: Int signal on T1, no increased signal on T2
Pronator teres muscle strain
Increased signal in anconeus
Epicondylar edema
Associated findings:
Partial MCL tear
Synovitis
Lateral impaction injury - subchondral cyst, subchondral sclerosis, loose bodies
Ulnar neuritis - increased signal and thickening on FS PD in cubital tunnel
Management:
Conservative
Surgical release
Transposition and decompression of ulnar nerve
Pitfalls:
Beware of previous infections