Measurement of the scapholunate distance is used as one of the indicators for carpal instability. Previ- ous studies have reported scapholunate distances greater than 2-5 mm as evidence of scapholunate dissociation. However, these studies included only adults (1). …

Scapholunate Dissociation The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas" sign to diagnosis scapholunate dissociation. Here's a quick summary.

DISI deformity may also develop secondary to distal pole of the scaphoid excision for treatment of STT arthritis ; Scapholunate Advanced Collapse (SLAC wrist) is due to advanced injury of the scapholunate and volar radioscapholunate ligaments which may lead to rotatory subluxation of the scaphoid and scapholunate dissociation. As in this severe case, the capitate may migrate proximally into the widened scapholunate space and articulate with the distal radius. World Of Radiology. 15,048 likes · 72 talking about this. ⁣ ️The scaphoid sits next to the LUNATE - I always remember to look for scapholunate dissociation … 2007-11-16 Since scapholunate advanced collapse was the most common incorrect diagnosis of PRCC (4/11), the imaging findings were compared among the 11 patients with PRCC and 14 patients with osteoarthritis caused by scapholunate dissociation who were diagnosed in the same period.

Tearing of this ligament can lead to abnormal alignment and kinematics of the wrist, also known as a scapholunate dissociation (SLD). Radiological evaluation of scapholunate intercarpal ligamentoplasty for chronic scapholunate dissociation in cadavers. Athlani L(1), Pauchard N(1), Dautel G(1). Author information: (1)Department of Hand Surgery, Plastic and Reconstructive Surgery, Centre Chirurgical Emile Gallé CHU de Nancy, Nancy, France. Pioneer in Rad Blogging. First mover in Radiology & Web 2.0. Xray indicates scapholunate ligament instability when the scapholunate distance is more than 3 mm, which is called scapholunate dissociation.

Dorsal intercalated segment A difference of > 4 mm between the scaphoid and lunate is considered pathognomonic for scapholunate dissociation (SL dissociation). Widening on X- ray is This widening was a constant arthroscopic finding in nearly all cases with SLL tear in this series. A similar rationale is applied to the volar component, except that it FIGURE 7: Radiographic evaluation of SL instability.

Imaging. Black arrow: Scapholunate joint space widening; White arrow: Cortical ring sign. Dorsal intercalated segment

3 article feature images from this case 16 public playlist includes this case Scapholunate interval. The scapholunate interval is the radiographic measurement of the scapholunate joint on PA wrist projections. Abnormal widening is indicative of injury to the scapholunate ligament that occurs with scapholunate dissociation . 2015-12-21 These findings represent scapholunate dissociation (rotatory subluxation of the scaphoid), and is the mildest form of this injury.

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DISI (dorsal intercalated segmental instability) scapholunate dissociation causes the scaphoid to flex palmar and the lunate to dorsiflex; if left untreated the DISI deformity can progress into a SLAC wrist Townsville radiology training. Published 25 Jul 2012. 60% complete. X-ray. Scapholunate dissociation and distal radius fracture.

6. Yeager BA, et al. Radiology of trauma to the wrist: Dislocations, fracture dislocations 3 Nov 2020 Scapholunate dissociation is associated with scapholunate ligament disruption; scaphoid subluxation, rotation and potential carpus instability FOOSH.
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Loss of mechanical linkage between scaphoid and lunate; is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing lectures, handouts, images, Cases of the Week, archives of cases, Xray indicates scapholunate ligament instability when the scapholunate distance is more than 3 mm, which is called scapholunate dissociation.
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FOOSH. Scapholunate dissociation. - Mayfield Stage 1. Wrist extended / ulna deviated / supinated. - capitate driven into interval between scaphoid and lunate

2 Scapholunate misalignment on both static and stressed radiographs is defined as static scapholunate instability. There is an intra-articular radial styloid fracture. Importantly, there is widening of the scapholunate distance (Terry Thomas sign) consistent with scapholunate dissociation. These findings represent scapholunate dissociation (rotatory subluxation of the scaphoid), and is the mildest form of this injury; Case B-D Case 7B showed a transcaphoid perilunate dislocation; note that the lunate and radius remain normally aligned.

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Scapholunate Dissociation. General Considerations. Loss of mechanical linkage between scaphoid and lunate; is an award-winning educational website aimed primarily at medical students and radiology residents-in-training, containing lectures, handouts, images, Cases of the Week, archives of cases,

16,911 likes · 288 talking about this. An Online Radiological Education Development initiative ! Jump to. Sections of this page. ️ The scaphoid sits next to the LUNATE - I always remember to look for scapholunate dissociation where there is an increased gap between the two bones World Of Radiology.