scapholunate advanced collapse (SLAC)

SLAC

(Scapho-Lunate Advanced Collapse)

Scapholunate

advanced collapse • Scapholunate advanced collapse (SLAC) & dorsal intercalated segment instability (DISI) - Ganzer Fall bei Radiopaedia

Scapholunate

advanced collapse • Scapholunate advanced collapse - Ganzer Fall bei Radiopaedia

Scapholunate

advanced collapse • Scapholunate advanced collapse and scaphoid non-union - Ganzer Fall bei Radiopaedia

Scapholunate

advanced collapse • Radioscaphoid arthritis due to SLAC wrist - Ganzer Fall bei Radiopaedia

Scapholunate

advanced collapse • Scapholunate advanced collapse (SLAC) - Ganzer Fall bei Radiopaedia

Scapholunate

advanced collapse • Early scapholunate advanced collapse treated with scaphoidectomy and four-corner fusion - Ganzer Fall bei Radiopaedia

Scapholunate

advanced collapse • Scapholunate advanced collapse (SLAC) - Ganzer Fall bei Radiopaedia

Scapholunate

advanced collapse • Scapholunate advanced collapse (SLAC) and dorsal intercalated segmental instability (DISI) - Ganzer Fall bei Radiopaedia

Dorsal

intercalated segment instability • Triangular fibrocartilage complex tear with scapholunate advanced collapse and dorsal intercalated segment instability - Ganzer Fall bei Radiopaedia

Scapholunate

advanced collapse • Scapholunate advanced collapse (SLAC) - Ganzer Fall bei Radiopaedia

Scapholunate

advanced collapse mit erheblicher Deformierung des distalen Radius und mutmaßlich auch älterer, distaler Skaphoidfraktur.

Scapholunate

advanced collapse • Scapholunate advanced collapse (SLAC) - Ganzer Fall bei Radiopaedia

Scapholunate

advanced collapse • Scapholunate advanced collapse (illustration) - Ganzer Fall bei Radiopaedia

Scapholunate

advanced collapse: a pictorial review. Surgical options for SLAC wrist. Posteroanterior wrist radiographs of three different patients following surgical treatment for SLAC wrist. a Complete wrist arthrodesis with a fusion plate is depicted. b Patient is status post radial styloidectomy (white arrowhead), resection of the scaphoid and triquetrum (white arrows), and ankylosis of the lunate and capitate (black arrow). c Proximal row carpectomy with resection of the scaphoid, lunate and triquetrum (black arrowheads) was performed

Scapholunate

advanced collapse: a pictorial review. SLAC wrist with late radiological findings. Posteroanterior wrist radiograph (a), and coronal and sagittal T1-weighted MRI images (b) of the wrist in the same patient, and coronal and sagittal CT reformat images (c) of the wrist in a different patient. In addition to extensive osteoarthritic changes, the images demonstrate significant proximal migration of the capitate (black arrows) with ulnar displacement of the lunate (white arrows)

Scapholunate

advanced collapse: a pictorial review. SLAC wrist with further radiological progression (Stage III). Posteroanterior radiograph (a) and coronal and sagittal CT reformat images (b) of the same patient, as well as a coronal STIR MRI image of the wrist (c) in a different patient with SLAC wrist arthropathy. Images demonstrate narrowing of the capitolunate joint (black arrows) in addition to involvement of the radioscaphoid joint. Note preservation of the radiolunate joint (white arrows). There is no significant migration of the capitate at this stage

Scapholunate

advanced collapse: a pictorial review. SLAC wrist radiological progression (Stage II). Posteroanterior radiograph (a), coronal CT reformat image (b) and coronal T1-weighted MRI image of the wrists (c) of three different patients, demonstrating narrowing of the radioscaphoid articulation (black arrows) in addition to radial styloid and scaphoid spurring. Note the preservation of the capitolunate joint at this point (white arrows)

Scapholunate

advanced collapse: a pictorial review. SLAC wrist early radiological findings (Stage I). Posteroanterior radiograph of the wrist (a), coronal CT reformat image of the wrist (b) and coronal proton density fat suppressed MRI image of the wrist (c) in three different patients show spurring at the articular/non-articular junction on the radial side of the scaphoid (black arrows) and at the radial styloid tip (white arrows), with loss of the normal rounded curvature of the radial styloid. Scapholunate diastasis is seen (black asterisks)

Scapholunate

advanced collapse: a pictorial review. Coronal illustrations of the wrist depicting the progressive osteoarthritic changes of SLAC arthropathy. a Normal wrist demonstrating an intact scapholunate ligament (white arrowhead), normal scapholunate interval and preservation of the joint spaces. (S scaphoid, L lunate, C capitate, R radius, U ulna). b Stage I: Early findings of SLAC arthropathy including scapholunate ligament tear (black arrowhead) with mild widening of the scapholunate interval, as well as early osteoarthritic changes involving the most radial portion of the radioscaphoid joint (black arrow). c Stage II: Progression of SLAC arthropathy with worsening osteoarthritic changes which now involve the entire radioscaphoid articulation (black arrows), and there has been increased widening of the scapholunate interval. d Stage III: Further progression of SLAC arthropathy depicted by worsening radioscaphoid joint osteoarthritic changes (black arrows), and there is now narrowing of the capitolunate joint space with associated osteoarthritic changes (white arrow). This will eventually progress to further proximal migration of the capitate

Dorsal

intercalated segment instability • Proximal row carpectomy - Ganzer Fall bei Radiopaedia