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For these same photos without the arrows, click here For more information, click on the link if you see this icon Scapholunate (SL) instability is the most common dissociative carpal instability condition. It is the most frequent cause of wrist osteoarthritis, defined as scapholunate advanced collapse or SLAC wrist. Familiarity with the SL ligament complex is required to understand the various features of SL instability. Scapholunate dissociation is the most common form of wrist instability, defined as “the loss of synchronous motion or normal alignment between the scaphoid and the lunate”.

Scapholunate dissociation

A variety of dorsal capsulodesis techniques tethering the scaphoid have been used in patients with SL dissociation. Se hela listan på sportsmd.com No clear consensus exists on the best treatment for patients with chronic symptomatic scapholunate dissociation uncomplicated by arthritis. Although most surgeons agree that operative intervention is indicated, their preferences are divided between soft-tissue and bony procedures. Even within these treatment categories, opinions vary. Because no definitive guidelines are available for choosing This pattern of ulnar translocation, in reality, represents a severe form of scapholunate dissociation and carries a worse prognosis. 19 Figure 19: T1-weighted coronal image demonstrates ulnar translocation of only the lunate (L) and triquetrum (T) bones [radsource.us] 2020-04-14 · Scapholunate dissociation is a difficult and unresolved problem in orthopedic hand surgery. Scapholunate ligament repair alone leads to failure and progression of scapholunate advanced collapse The scapholunate is an interosseous carpal ligament that provides stability to the proximal carpal row.

GIH biblioteket : Sports medicine

The scaphoid usually rotates into flexion, and the lunate rotates into extension. This is apparent on plain static radiographs. Scapholunate dissociation is the most common form of wrist instability, defined as “the loss of synchronous motion or normal alignment between the scaphoid and the lunate”.

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Even within these treatment categories, opinions vary. Because no definitive guidelines are available for choosing This pattern of ulnar translocation, in reality, represents a severe form of scapholunate dissociation and carries a worse prognosis. 19 Figure 19: T1-weighted coronal image demonstrates ulnar translocation of only the lunate (L) and triquetrum (T) bones [radsource.us] 2020-04-14 · Scapholunate dissociation is a difficult and unresolved problem in orthopedic hand surgery. Scapholunate ligament repair alone leads to failure and progression of scapholunate advanced collapse The scapholunate is an interosseous carpal ligament that provides stability to the proximal carpal row. It consists of dorsal, proximal and palmar segments that bridge the scaphoid and lunate.

7. Watson HK Three-ligament tenodesis for the treatment of scapholunate dissociation: indications and surg ical technique.
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Frontal view of the wrist showed increase in scapholunate distance (arrow). It measures 3.5mm. Other intercarpal joints measures about 1.5mm only. This is consistent with Terry-Thomas sign and indicates scapholunate dissociation.

stiffness weakness numbness spasm The most common cause of scapholunate dissociation is fall on the out-stretched hand. The trauma cases scapholunate ligament ruptures, resulting in separation of lunate from scaphoid. It also causes the scaphoid to rotate dorsally.
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19 Figure 19: T1-weighted coronal image demonstrates ulnar translocation of only the lunate (L) and triquetrum (T) bones [radsource.us] 2020-04-14 · Scapholunate dissociation is a difficult and unresolved problem in orthopedic hand surgery. Scapholunate ligament repair alone leads to failure and progression of scapholunate advanced collapse The scapholunate is an interosseous carpal ligament that provides stability to the proximal carpal row.

GIH biblioteket : Sports medicine

It is caused by rupture of the ligaments between radius, scaphoid, lunate and capitate bones.

It is the most common pattern of wrist instability. Its characteristics are the dissociation of the scaphoid and the lunate, with flexion of the scaphoid, and extension of the lunate. Scapholunate dissociation is one of the most common forms of carpal instability, which is often overlooked and leads to associated morbidity.