Ulnar impingement syndrome
Distinct and different from ulnar impaction syndrome. As Dr. Cerezal points out in this outstanding article: Although the literature frequently uses the terms ulnar impingement and ulnar impaction interchangeably, these entities are not only distinct but mutually exclusive. Ulnar impingement syndrome is caused by a shortened distal ulna that impinges on the distal radius proximal to the sigmoid notch. [ Article ]
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