What is a scapholunate collapse?
Scapholunate advanced collapse (SLAC) is a characteristic degenerative clinical wrist condition of progressive deformity, instability, and arthritis that affects the radiocarpal and mid-carpal joints of the wrist.
What is scaphoid nonunion advanced collapse?
Scaphoid non-union advanced collapse (SNAC) is a complication that can occur with scaphoid fractures, specifically non-union of scaphoid fractures. It is essentially the same sequela of wrist injury causing scapholunate dissociation as seen in scapholunate advanced collapse (SLAC).
Why does my wrist collapse?
CAUSES. Most cases of SLAC wrist start with a significant wrist sprain or fracture, but occasionally no history of injury is recalled. Some cases of scapholunate ligament injury may be due to repetitive heavy loading of the wrist as seen with obesity, or inflammatory conditions of the wrist that damage the ligament.
Can wrist bones collapse?
Diseases & Conditions If the blood supply to a bone stops, the bone or parts of the bone can die. This is called osteonecrosis. A loss of blood supply to the lunate causes the bone to lose its structural support, and it will collapse, causing a painful, stiff wrist.
What is PRC surgery?
Proximal row carpectomy (PRC) is a surgical procedure that removes one of the two rows of small bones in the wrist. It essentially converts a complex wrist joint into a simple, yet workable hinge. Operation involves excision of the scaphoid, lunate, and triquetrum which sit in the first row of bones.
What is Scapholunate advanced collapse?
Scapholunate advanced collapse (SLAC) describes a characteristic degenerative clinical wrist condition of progressive instability, deformity, and arthritis affecting the radiocarpal and midcarpal joints of the wrist. [1]
What is scaphoid lunate collapse (SLAC)?
Scaphoid Lunate Advanced Collapse (SLAC) describes the specific pattern of degenerative arthritis seen in chronic dissociation between the scaphoid and lunate.
What is scaphoid fracture nonunion advanced collapse?
Summary Scaphoid Nonunion Advanced Collapse (SNAC) describes the specific pattern of progressive arthritis of the wrist that results from a chronic scaphoid nonunion. Diagnosis is made clinically with progressive wrist pain and wrist instability with radiographs showing scaphoid fracture nonunion with advanced arthritis of the radioscaphoid joint.
What is scapholunate ligament injury?
Scapholunate Ligament Injury is a source of dorsoradial wrist pain with chronic injuries leading to a form of wrist instability (DISI deformity). Diagnosis is made with PA wrist radiographs showing widening of the SL joint.