What is ulnar impingement syndrome?
Ulnar impingement syndrome is a wrist condition caused by a shortened distal ulna impinging on the distal radius proximal to the sigmoid notch.
How is ulnar impaction syndrome treated?
Ulnar abutment syndrome can be treated by a variety of nonsurgical and surgical methods. These range from anti-inflammatory medications, immobilization, and corticosteroid injections to TFCC debridement, ulnar shortening osteotomies, and arthroscopic wafer procedures.
What is ulnar styloid impaction syndrome?
Background Ulnar styloid impaction syndrome (USIS) is produced by the tip of an oversized ulnar styloid inappropriately contacting the triquetrum. This condition results in chondromalacia, synovitis, and ulnar-sided wrist pain.
What causes ulnar styloid fracture?
The most common cause of ulnar styloid fracture, or any other wrist fracture, is falling onto an outstretched arm. This could happen when playing sports, falling off a bike, having a car accident, or just falling hard as you trip over something.
When should ulnar styloid be fixed?
Treatment of an ulnar styloid nonunion should be considered if patients are symptomatic and/or have DRU-joint instability [27]. The ulnar styloid nonunion should be treated as a bony nonunion and be reattached to the ulnar head if the fragment is large [27], [28] (Fig. 9).
Is ulnar impaction syndrome painful?
Ulnar impaction syndrome is a condition in which one of the forearm bones (ulna) is too long relative to the other (radius). This results in excessive pressure on the ulnar side of the wrist and causes pain, and wear and tear.
Ulnar Styloid Impaction Syndrome is a common cause of ulnar-sided wrist pain secondary to impaction between the ulnar styloid tip and the triquetrum. Diagnosis is made by PA wrist radiographs which reveal positive ulnar variance with subchondral sclerosis of the ulnar styloid and/or triquetrum. Treatment is a course of rest, NSAIDs and splinting.
What is ulnar impingement syndrome of the wrist?
Ulnar impingement syndrome is a wrist condition caused by a shortened distal ulna impinging on the distal radius proximal to the sigmoid notch. The syndrome is distinct from ulnar impaction syndrome, which typically occurs due to a long ulna (positive ulnar variance) impacting upon the triangular fibrocartilage (TFC) and lunate.
What happens if the ulnar styloid is too long?
An ulnar styloid >6 mm in length is commonly regarded as being long. Impaction results in chondromalacia of the opposing articular surfaces, i.e. the proximal pole of the triquetral bone and ulnar styloid tip. Chronic impaction can lead to lunotriquetral instability.
Can an excessively long ulnar styloid impinge on the triquetrum?
The tip of an excessively long ulnar styloid can impinge upon the triangular fibrocartilage complex (TFCC) against the triquetrum. The subtleties in biomechanics of the wrist joint and their role in the production of the symptoms are presented as five cases from a retrospective study. The relationsh …