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. When the ligament complex tears, the scaphoid tends to flex while the lunate extends, creating translational and rotational instability between the two.

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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]

Normally they sit closely beside each other and are held in place by ligaments. In this injury, the two bones are spread apart and the ligament that holds them close together is torn. A Scapho-Lunate Dissociation is a injury in your wrist. Two of your wrist bones, the Scaphoid and the Lunate, drift apart when an important ligament is torn (the SL Ligament). Our ligaments connect one bone to another. They keep our bones in alignment and they prevent our bones from wobbling all over the place. 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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In this study, a questionnaire was sent to all members of the ASSH, in which a case of wrist instability in a 35-year-old male laborer 9  sectioning ligaments to create a scapholunate dissociation increases the joint contact pressure on the scaphoid and decreases the contact surface area of the  The Scaphoid and Lunate bones are conjoined through an intra-articular ligament known as the Scapholunate. This ligament is responsible for coordinated  Nov 4, 2020 Blatt Capsulodesis for S-L Dissociation. Scapho-lunate ligament injuries are quite difficult to treat and results are variable. Acute tears of the  Nov 19, 2018 Trauma causes sructural dissociation,the connection between the right/ left brain gets disconnected. Is scoliosis a sympton of this dissociation? Often the term is used interchangeably with scapholunate dissociation but in a strict sense, the scapholunate dissociation is one of the types of scapholunate  Xray indicates scapholunate ligament instability when the scapholunate distance is more than 3 mm, which is called scapholunate dissociation.

Scapholunate dissociation is a rotatory subluxation of the scaphoid with widening of the gap between the scaphoid and lunate. It is caused by rupture of the ligaments between radius, …

J Hand Surg Am. 2006;31(1): Watson HK,  113; Flexor Tenosynovitis p. 114; Common Extensor Tenosynovitis p.

Jan 22, 2016 The scapholunate is an interosseous carpal ligament that provides stability to the proximal carpal row. It consists of dorsal, proximal and palmar 

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”. 1 The mechanism of injury is typically a fall with the wrist extended and in ulnar deviation. 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. When the ligament complex tears, the scaphoid tends to flex while the lunate extends, creating translational and rotational instability between the two.

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”. 1 The mechanism of injury is typically a fall with the wrist extended and in ulnar deviation.
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Scapholunate dissociation

A static instability is generally readily visible, but a dynamic scapholunate instability can only be seen radiographically in certain wrist positions or under certain loading conditions, such as when clenching the wrist, or loading the wrist in ulnar deviation. 2019-04-02 Scapholunate dissociation is a rotatory subluxation of the scaphoid with widening of the gap between the scaphoid and lunate. It is caused by rupture of the ligaments between radius, … A scaphoid radiograph series, consistent with American College of Radiology guidelines, was obtained based upon examination findings. The radiographs revealed a scapholunate gap of 4 mm and a scapholunate angle of greater than 60°, suggestive of scapholunate dissociation. J Orthop Sports Phys Ther 2018;48(3):225.

Scapholunate (SL) Ligament Tear | Upswing Health.
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Scapholunate dissociation




4 Sep 2019 Scapholunate Dissociation The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas" sign to diagnosis 

Latin/Grekiska. -. Engelska. Scapholunate  Dx: Fx-linje om det är tydligt, förskjutning och fördunkning av scaphoid (navicular) fettkudde, undersök för scapholunate dissociation.


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It is caused by rupture of the ligaments between radius, … A scaphoid radiograph series, consistent with American College of Radiology guidelines, was obtained based upon examination findings. The radiographs revealed a scapholunate gap of 4 mm and a scapholunate angle of greater than 60°, suggestive of scapholunate dissociation. J Orthop Sports Phys Ther 2018;48(3):225. doi:10.2519/jospt.2018.7774. PMID: Scapholunate dissociation is a rotatory subluxation of the scaphoid with widening of the gap between the scaphoid and lunate. It is caused by rupture of the ligaments between radius, scaphoid, lunate and capitate bones. The scaphoid has lost its stabilizing function as a bridge between the proximal … Scapholunate dissociation: Involves a complete tear of the SLIL with additional tear of 1 or more secondary ligaments.